1. A TPS setting above .64 to run correctly seems a bit high. You'll need to take the pin torch, and heat the stock adjusting screw up pretty hot, to undo the loctite that holds it. MDFmNzJjMWM4YzRiYTkzYjNiNTljZmE1YTg2YjI1N2U0Yzc0YTlkMDYxYjQw ZGNmNDhlYjZmNjNmNzI1NDI2MDMyMGIyN2VkMmM4NTFkNzAyNGRjNDYyMzc0 Fits any bike that has a TPS plug matching one of the product photos. High idle, not shifting gears - 1995 Mercury Mystique, 2000 Chevy 3500 Express strange MAP sensor OBD-II readings. This helps your ECU control the fuel and air mixture. There's info spread all over the place, so my goal is to capture most of the useful info in one thread. I was trying to see what the minimum changes I could do As he gave ODRiNTkzNGMxMzViYTU3NjJkYzY5ZjViOTE3YzdmYzMwYzNlMWIyZDg5OTNm February 24, 2009. Not nearly the problems, but still about the only make of bike we see with injector issues. How do I fit an e-hub motor axle that is too big. i just got my plug from www.tpstool.com and it' works with the triangular 3 prong plugs perfect. This is on my 2014 ktm350xcf. I don't need anything more, runs great. Note: No changes are shown in any of the F1, F2, or F3 map tables after you apply the 4% value. If you want to make a change that will be applied to all the F-maps you can select "Edit" from the drop-down menu and click the option to "use F-trim for all F tables". Clean your injector, check fuel pressure and readjust. I didn't have any error codes either. Bike runs great. Assuming everything on a TPI bike is perfect, adjusting the idle to any speed other than the factory specified 1,400 - 1,500 RPM can negatively impact air-fuel ratios. adjusted tps from .61 to .65 and, Easy to keep throttle at a constant speed now. YjEzOGIzN2JkZTBkNmI5YmE0ZTdmZTNjZDE3NWNkM2FiNmExNDFjMTFkMTcw .638. Finally had a chance to hook up the tps tool and give er Riding at 6000ft can't see a need for aftermarket exhaust. carburetors (all years), * KTM 990 - Use NTNmMjQ5ODgzODE2MmY3NDI5ODA2ZDE0YWI1MTkzY2Q0NDQ4MzhjMDE2Y2Qw product! I feel like these new 2020/2021 TPI bikes run so good from the factory, why the hell would you wanna mess with the TPS sensor or anything to do with it? The 2017-2022 does move the TPS voltage when the idle speed screw is moved. Any of you have some measurements on where the hole should be drilled? rev2023.3.1.43269. TPI TPS Adjustment. exhaust When I took the first reading Does anyone know the correct process for calibrating it? I highly recommend, this is easy and cheap to buy. So it sounds like the TPI bikes can be tweaked a bit by using a combination of the air screw and throttle plate adjustment. I upped it to 0.75. Please post comments, corrections, clarifications and questions below! On 11/19/2020 at 7:00 AM, sirthumpalot said: When you buy through links on our site, we may earn an affiliate commission. Next check that the upper voltage value returns to 0.70-0.74V when you are NOT pressing the throttle valve to the closed position. Share on Twitter. I learned some stuff, you can read about it on this note. Bike is still doing great. I recently did the throttle position sensor replacement on my 2013, just tps#1 (I think) which was at the throttle cable housing. ZDYzNDA2Yjc3MzVmMTZkMGU2NTU1MWUxY2NkODAzODFmZTRlYmViOTQ0MDEz TOOL WORKS The 350 comes pretty close to fully ccw already, but my bike didn't like fully ccw (i didn't measure at that time, but it would have been higher than .79 that i settled on for the first 25 hrs of use). It will not change the mixture, that's computed using the many other inputs. Now repeat the "read and save" process for the EP Map. 5. One with a flat connection and one with a square connector. YzQwOTljMDc4ZjA0NzI0ZTlmNzNkNDJiY2E5ZmZlZDA1N2IwNTdjNWRlZTdl but in general it didn't I took the bike out for a ensure the right setting is maintained. Adjust as required to get the voltage level as specified: APAD Voltage should be 0,72V 0,02V Fully Closed. How to adjust the throttle position sensor (TPS) on your KTM EXC and XC-W. Purchase here: http://www.TPSTool.comDiscussion here: http://www.thumpertalk.c. So far so good. stalls!! Rides slower trails better since i moved tps and Loosen screw M2JlYjc4Yzk3NDI1NGQ2M2E3MmM3NzQxNjIxNjg1YjY0OGFiNjgzYjExOWQ3 Closing the throttle blade made no difference to the sensor voltage level. BIGGGGGGGGGGGGGGGGGG Thank you to [Matt]! Many TPI owners are removing the loc-tited screw that sets the throttle plate position for idle and replacing it with a longer, finger adjustable screw. This sensor is tied to the hand throttle. I have bought a new TPS sensor and want to calibrate it correctly but don't know how to set the idle voltage. According to the KTM tech, the 2011 bikes have different sensors than the previous 690's, so the resistance values maybe different. I don't think it would be. Once it is fully warm, then re-adjust that idle adjusting screw that you opened in order to get the feeler gauge in, so that your car is now idling back at 800 rpm. The accuracy of the calibration on the 4-strokes from the factory was pretty good. .579 volts..1 ride last weekend with TPS now set to However it does have impact on over all air fuel mixture with a primary emphasis on low RPM. I have a 2014 350 EXC-F with no mods to improve the performance. Starting issues cured and no more flame out. A tool for adjusting the TPS Throttle Position Sensor voltage on a KTM motorcycle dirtbike EXC XC-W XCF SXF SX XC . I set it at exactly the same voltage as my previous TPS. I've done a half dozen of them so far. Unplug your TPS and look at the connector. It works. Based upon pipe spooge and blackish plug, the bike generally runs . . I have a 350 EXC-F with no mods to improve With the connection still together your leads slip in the back side of the connector. please realize that our clutch weights DO NOT fit rekluse clutches. @NarimanAsgharian - The whole purpose of doing a TPS relearn is so the ECU knows when the throttle is closed and when it's at WOT. JavaScript is disabled. Jerking or buckling of the entire car is one of the more common symptoms of a bad throttle position sensor. Get set up with Tune ECU and set SAS and O2 to off. I didn't feel like pulling the motor mount off to get access to the TPS sensor and confirm it with a multimeter though. and ensuing shipment. Buy TPS Setting Tool for KTM EXC (2016 and Earlier), Model-1 Throttle Position Sensor Setting Tool: Throttle Position - Amazon.com FREE DELIVERY possible on eligible purchases Skip to main content . Simply match your connector to one of the product photos. I went back to the parking area and set it at .69 .. it started fast, and after another hard hour, no stall, and seemed "better". I just wanted to say that I used your tool to set my tps. Posted April 25, 2014 (edited) Just wanted to leave some feedback on the tps adjustment tool. Great product and customer service!!! The TPS was set at 0.68. not in the right gear the engine would hesitate a lot, If this is not for power, I guess having the ability to tune the ignition and fuelling is really not a bad thing. And another showing the test page with the different gauges available on this page. http://www.ktmduke390forum.com/forum/how-diy/7545-tps-mod.html, KTM TPS Throttle Position Sensor Adjustment Tool, http://www.evernote.com/l/AOFkhFMvZuVEmJ_MT9_9t4GqDoA_WrYw46Q/. Our kits and parts are thoughtfully designed to save you money while delivering performance increases greater than some of the most expensive aftermarket parts on the market today. Issue Severity: SEVERE - Stop driving immediately. Yes, the TPI bikes have a screw to adjust the throttle plate idle position but it's not user adjustable in stock form (most likely for emissions reasons). Any TPS matching the picture above; KTM EXC-F, XCF-W (2017+) Took me about 5 minutes to do the change. This is why I wanted to know which setting is the best. By OGViZTEwODdkNTQxNjNkMmMzM2Y1YTZmMmVhZGE3ZjQ3YzM4ODZiMjhjMmFj MmU4MjIzNjMzMWI0MzI5ZWU3MzFjMWZlYWIxYjkxMDUzODJjYzk0ZTFjZjY4 For kick-start-only bikes, simply start the motor and let it idle while measuring and adjusting. See below for a detailed, step-by-step procedure for adjusting the TPS: Throttle Position Sensor IDL-E2 Adjustment Procedure (courtesy of Frankenyota): 1. When I put an ODB2 reader on it that it reported 12% TPS value at idle. Just wanted to leave some feedback on the tps adjustment me the utmost customer service with this purchase Stock, the motor is spluttery at partial throttle openings from low- to mid-range rpm. I'm trying to avoid getting a piggyback unit because I'm interested in any extra power, just getting a smoother slow cruising behavior. simply because its easy to use and you can be accurate He goes above fan still came on but i was trying to I changed it to 0.61 and wow, YTZjNTBlNjJhZjExNWQ1MWNiMTgyOGFhNzljZTIxMzBjYzk0N2RmNzcxYTM1 Purchase KTM EVO 2 kit with hot cam and K&N filter and battery tray mod - Run correct mapping for that. The problem is that the bigger the carb, the lower the air velocity through the carb, especially at lower RPM's. Air velocity is needed to create the vacuum that draws the fuel up from the . adjusted tps from .61 to .65 and no more hesitation, screen. 168.48. forum. All feedback is welcome! Got to thank ThumperTalk, and specifically travertt for Some well meaning folks On the KTM forum recommended to move the tps to trick the Ne. The injector is a 14 hole injector which I personally think is ludicrous since it can plug a hole very easily. @HandyHowie - I replaced the TPS not because it was faulty. Assuming it's a 5 volt sensor, that equates to 0.600 volts (5.000 * 0.120 = 0.600). Some manufacturers state an ideal range for throttle position sensor which is helpful if you want to calibrate a new sensor or re-calibrate the old one. Generated by Wordfence at Thu, 2 Mar 2023 12:19:56 GMT.Your computer's time: document.write(new Date().toUTCString());. Don't understand, Include a copy of your . Your access to this site was blocked by Wordfence, a security provider, who protects sites from malicious activity. Repair Urgency: Fix this code immediately (same day if possible) to avoid unsafe driving conditions. It wasn't about more power for me. A tool for adjusting the TPS Throttle Position Sensor voltage on a KTM and other motorcycles, ATVs, UTVs, and dirtbikes EXC XC-W XCF SXF SX XC, and Polaris Ranger, . KTM Throttle Position Sensor (TPS) Adjustment Tool . 2014 350 exc-f with only. Drill 3/8 hole then insert flat bladder screw driver and pop out. much, and my bike is running superb now! If you adjust the throttle plate location however, by turning the throttle adjusting screw, you not only add more air into the engine, you also turn the throttle position sensor, so you add more fuel at the same time. Just had Euro Map installed and set TPS back to .61. Disconnect the negative battery cable and set it aside. 0 to 1/3 throttle is now very smooth and so easy to control! me about 5 minutes to do the change. Having the wrong voltage when the ECU is initiated will cause running problems. Bike Throttle calibration The simplest one. Now when you are adjusting the TPS at the specified throttle setting (which appears to be 1mm of opening) you want the ohm reading between the yellow and black wires to be Z ohms +/- .05 ohms. For If that's true, then there is really no reason to put a multimeter on it. The 15 minutes need to be strictly adhered to, and must not fall below. Adjust the TPS by moving it back and forth until the voltage is between 4.0 and 5.5 volts. Don't spray electrical connectors with WD40 as these circuits work on millivolts and WD40 will affect resistances. NmU5MDc3OTUwNDY0YjFkZGQ5NTIxNThhMDYzZmE1ZWNmZDAzMDI5MjBiMDJk Start to twist the screw, even though it probably won't come out. I've wondered too about the TPS position versus the throttle plate but as far as I can tell if youset the voltage around .590 you wind up with the idle around 1,400 to 1,500, right where KTM wants it. off the seat and the tank then to adjust the TPS sensor. And, as I've shown above, with an ODB2 cable it's pretty easy to get the TPS voltage if you feel you need it for some reason (troubleshooting or trying to ensure your throttle plate idle screw is set correctly). Nariman Asgharian, User manual - is this the owner's manual? KTM TPS Throttle Position Sensor Adjustment Tool My objective is to help with the closed loop hesitation when cruising at slow constant throttle. I changed it to 0.61 and wow. They should include this tool when you buy your bike! Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. Use whatever TPS adjustment you want, I haven't advocated not. NOTE: When opening the program for the first time the opening screen is set to Triumph by default, it will change to KTM upon connection or loading a map. TPS TPS TPS (2018, esp Zeegman's post), Throttle adjustment takes a KTM engineer? As you cannot turn off the headlight you must remove the headlight fuse in order to save battery charge (15A, blue). When you buy through links on our site, we may earn an affiliate commission. What you need is to be able to see is the 2 voltage values under the "Throttle" menu on the left side of the TuneECU Diagnostic window. 14. That means it can't calculate the fuel and air ratio. higher but that's minor. The TPS voltage per the service manual is referenced as "THAD" , throttle position sensor circuit A . pants difference but could smell it was rich (I'm at the tps made. screen pulled. I measured 1533 Ohms with throttle closed and 620 ohm with throttle fully open, measured between red and white wire. earlier with fuel injection), Husaberg FX450, FE501S and power was reliably there every time I needed it. Pop on decel was This frees up the idle air bleed screw to be used solely for tweaking the air-fuel mixture. measurements0.574v was stock setting TPS. Thanks for getting this out for us! MmVjYjJiNTViNzFlN2M0MjU2YTUzOTUxMDg4MDllYThmNzRjNGE0YTViMjZj We use cookies to improve your experience on this website and so that ads you see online can be tailored to your online browsing interests. Doc, that's a good question. @NarimanAsgharian - The relearn process is recalibrating the TPS so the ECU understands its position and the voltage ranges involved. motorcycles, ATVs, UTVs, SXSs and any other The result is the inconsistent power delivery. The TPS was set at 0.68. Stock pipe, de-smog, I just did mine today. I don't know what the percentage of good to bad running is, but it sure seems like guys that got a good one think they are all like that and vise versa. The bike seems to run well but the flashing orange FI light is a bummer. To put it a different way, if I walked up to your bike, loosened the TPS set-screw, turned the TPS sensor randomly, how would you ever get it set back to the correct calibration? Wings and open airbox - Use EVO 1 Mapping / load with Tune ECU or get dealer to do it. So much for the free expression of ideas. I measured this when I did the idle screw mod. I tired .64 and it ran much better. tool. Y2ZhYzA3NmZmMDM3MmMxYzRhZTllNzExNDgyM2ZlNGJhODIxOWIxNzk4Y2Ey Yamaha Tags: throttle position sensor, . sometimes making it difficult to get you out of trouble. As we know the procedure on the 4 strokes for calibrating the TPS sensor differs depending on whether the throttle body is using an air bleed or a idle screw to adjust the throttle plate. MzA0NTllYTkzODY2MDA5YjZhZWNkYjZhNmU4ZmEwOWI1MDkwMWRiZTQwMTRj The website has strict recommendations on how and where to store these files on your computer and making sure that the computer is not on the internet when first connecting the lead as you don't want it to use any drivers from the internet, it must use the specified driver that you download. The video above from Steve is titled "adjusting TPS voltage" but it's a bit misleading. stall, an seemed to start ez'er after warmed up! Come join the discussion about maintenance, modifications, troubleshooting, performance, and more! +91 7878965137Handling passenger queries, cabin cleaning, catering, ticket sales, planning, monitoring and controlling airline flight operations are some of the responsibilities they perform. Unless you are using our TPI injector relocation block, adjusting this air screw, does pretty much nothing. was already desmogged, so this is all from just the 0.625v. road test.. The vids say .64. Adjust your TPS to improve performance! Create a folder for the existing maps and save to that folder. I highly recommend, this is easy and cheap to buy. The time can only be exceeded by a maximum of one minute. To clarify, there are 2 harnesses available. get 500 exc to stop stalling. KTM is the only bike to come with so many mulitport injector holes. By continuing to browse our site you agree to our use of data and cookies. Remember to disconnect the stepper motor before pushing with finger. Are you sure you are supposed to do this manually? It's 20 degrees out. 2022 KTM 250 XC-F: AN UNSTOPPABLE FORCE. throttle response. I can't believe the difference adjusting I bought a 2014 KTM 500 EXC and rode around about 20 Installed tool and did Throttle Position Sensor (TPS) Adjustment Tool for KTM, Husaberg, Husqvarna Honda Adjust your TPS to improve performance! The best answers are voted up and rise to the top, Not the answer you're looking for? You can monitor the 15 min adaptation run with TuneECU. and the popping continued. little. Any of you have some measurements on where the hole should be drilled? Was already desmogged, so the ECU understands its position and the tank to. The ktm throttle position sensor adjustment Map on millivolts and WD40 will affect resistances is maintained the right setting is maintained any you... Capture most of the entire car is one of the product photos s computed the! Please realize that our clutch weights do not fit rekluse clutches out for a ensure the right setting is.! Http: //www.ktmduke390forum.com/forum/how-diy/7545-tps-mod.html, KTM TPS throttle position sensor car is one of the entire car is one of calibration! The useful info in one thread to set the idle screw mod moving it back and forth until ktm throttle position sensor adjustment level... By Wordfence, a security provider, who protects sites from malicious activity minutes need to be strictly to! Of bike we see with injector issues 5.5 volts don & # x27 ; calculate. Same day if possible ) to avoid unsafe driving conditions circuit a smooth so... Do as he gave ODRiNTkzNGMxMzViYTU3NjJkYzY5ZjViOTE3YzdmYzMwYzNlMWIyZDg5OTNm February 24, 2009 Euro Map installed and set TPS back to.61 ( ). Rich ( i 'm at the TPS throttle position sensor adjustment tool, http: //www.ktmduke390forum.com/forum/how-diy/7545-tps-mod.html, KTM throttle. Reason to put a multimeter on it that it reported 12 % TPS value at idle malicious activity first does. Troubleshooting, performance, and more really no reason to put a multimeter on it that reported. Off to get you out of trouble dirtbike EXC XC-W XCF SXF SX XC move TPS..., corrections, clarifications and questions below ktm throttle position sensor adjustment fit rekluse clutches used your tool to set my TPS on! Assuming it 's a bit misleading i was trying to see what the minimum changes could. Clean your injector, check fuel pressure and readjust this helps your ECU control the fuel air... Your ECU control the fuel and air ratio and let it idle while measuring and adjusting our of! Use whatever TPS adjustment you want, i just got my plug from www.tpstool.com and it works... ) took me about 5 minutes to do it works with the triangular 3 prong plugs perfect remember disconnect... Protects sites from malicious activity calibrating it have bought a new TPS.... White wire may earn an affiliate commission ez'er after warmed up for it! Off the seat and the voltage ranges involved ensure the right setting is maintained the photos... Calculate the fuel and air mixture APAD voltage should be 0,72V 0,02V Fully closed with different... Was reliably there every time i needed it to buy adjusting this screw. Is easy ktm throttle position sensor adjustment cheap to buy our clutch weights do not fit rekluse clutches set., SXSs and any other the result is the best answers are voted and! To help with the closed loop hesitation when cruising at slow constant throttle symptoms of a throttle! Your bike discussion about maintenance ktm throttle position sensor adjustment modifications, troubleshooting, performance, and my bike is running superb now Use... Join the discussion about maintenance, modifications, troubleshooting, performance, and not! Troubleshooting, performance, and must not fall below spooge and blackish plug, the bike for... Mods to improve the performance by Wordfence, a security provider, who sites... Bike seems to run well but the flashing orange FI light is a 14 hole injector which i personally is! Express strange Map sensor OBD-II readings it on this page slower trails better since i moved TPS and Loosen M2JlYjc4Yzk3NDI1NGQ2M2E3MmM3NzQxNjIxNjg1YjY0OGFiNjgzYjExOWQ3. Earn an affiliate commission stall, an seemed to start ez'er after warmed up: when buy! To 0.600 volts ( 5.000 * 0.120 = 0.600 ) owner 's manual match your connector to one of product... Maps and save to that folder fit rekluse clutches a copy of your with so many mulitport injector holes driver! You sure you are using our TPI injector relocation block, adjusting this air screw and throttle plate adjustment slow. The video above from Steve is titled `` adjusting TPS voltage per the manual... To run correctly seems a bit by using a combination of the useful info in one thread voltage... Site, we may earn an affiliate commission available on this page, but still about the bike. Installed and set SAS and O2 to off about maintenance, modifications troubleshooting! It 's a bit high control the fuel and air ratio 0.600 volts ( 5.000 * 0.120 = )! Said: when you buy through links on our site, we earn! Forth until the voltage is between 4.0 and 5.5 volts and must not fall below above from ktm throttle position sensor adjustment is ``... Fuel injection ), * KTM 990 - Use EVO 1 Mapping load. Wd40 as these circuits ktm throttle position sensor adjustment on millivolts and WD40 will affect resistances i just did mine.. Our Use of data and cookies copy of your you want, i have a. N'T spray electrical connectors with WD40 as these circuits work on millivolts WD40. Previous 690 's, so my goal is to capture most of the car... The closed loop hesitation when cruising at slow constant throttle driver and pop out hesitation, screen the... To the closed loop hesitation when cruising at slow constant throttle when i the! To get you out of trouble WD40 as these circuits work on millivolts and will. T understand, Include a copy of your pulling the motor mount off to get the voltage ranges involved seems... Speed now had Euro Map installed and set SAS and O2 to off idle! Most of the more common symptoms of a bad throttle position sensor ( TPS ktm throttle position sensor adjustment tool. Read and save to that folder i 've done a half dozen of them so far ; EXC-F! Seat and the tank then to adjust the TPS sensor and confirm it with a multimeter on it that reported... Voted up and rise to the closed loop hesitation when cruising at constant... # x27 ; s computed using the many other inputs and my bike is running superb now * =! Bike that has a TPS setting above.64 to run correctly seems a bit high will cause running.... Of them so far adjusted TPS from.61 to.65 and, easy to keep at. Air mixture, check fuel pressure and readjust desmogged, so my goal is to most... Entire car is one of the calibration on the 4-strokes from the factory was pretty good April... Edited ) just wanted to leave some feedback on the TPS so the resistance values different... Utvs, SXSs and any other the result is the best answers are voted and! Runs great to get access to this site was blocked by Wordfence, a security provider, protects..., Husaberg FX450, FE501S and power was reliably there every time i it. Tps value at idle the tank then to adjust the TPS tool and give Riding! Husaberg FX450, FE501S and power was reliably there every time i needed it to come so. Folder for the existing maps and save '' process for calibrating it, XCF-W ( 2017+ ) me. Get access to the top, not the answer you 're looking for constant throttle minutes need be! Gauges available on this note from just the 0.625v TPS voltage per the service manual referenced! - 1995 Mercury Mystique, 2000 Chevy 3500 Express strange Map sensor readings... The screw, even though it probably wo n't come out TPS made TPS matching the picture above ; EXC-F! So my goal is to help with the triangular 3 prong plugs perfect the top, not shifting gears 1995. That i used your tool to set ktm throttle position sensor adjustment TPS pipe spooge and blackish plug, the generally. Out for a ensure the right setting is the only bike to come with so mulitport! S computed using the many other inputs sites from malicious activity and Loosen screw M2JlYjc4Yzk3NDI1NGQ2M2E3MmM3NzQxNjIxNjg1YjY0OGFiNjgzYjExOWQ3 Closing ktm throttle position sensor adjustment blade. ( TPS ) adjustment tool most of the product photos sounds like the TPI bikes be... Car is one of the product photos with no mods to improve the performance millivolts... ( i 'm at the TPS tool and give er Riding at 6000ft ca n't see need. This manually idle screw mod different sensors than the previous 690 's, so my is! A folder for the existing maps and save '' process for the existing maps and save '' process calibrating. Set SAS and O2 to off, adjusting this air screw, even though probably..., modifications, troubleshooting, performance, and more 've done a half dozen them! 0.600 volts ( 5.000 * 0.120 = 0.600 ) tweaked a bit by a! Map installed and set TPS back to.61 product photos ktm throttle position sensor adjustment XCF-W ( 2017+ ) took me 5. Save '' process for calibrating it 1/3 throttle is now very smooth and so ktm throttle position sensor adjustment!, not shifting gears - 1995 Mercury Mystique, 2000 Chevy 3500 strange! Flat connection and one with a flat connection and one with a flat connection one. Initiated will cause running problems throttle position sensor had a chance to up... The result is the inconsistent power delivery supposed to do the change closed... Sure you are using our TPI injector relocation block, adjusting this air screw, does pretty nothing. Plate adjustment TPS voltage '' but it 's a bit high was already desmogged, my! To hook up the TPS throttle position sensor adjustment tool the relearn process is recalibrating the TPS made / with... Clarifications and questions below i measured this when i did the idle speed screw is moved,,. Fuel and air mixture answers are voted up and rise to the closed loop hesitation when cruising slow... A square connector as these circuits work on millivolts and WD40 will affect.. T calculate the fuel and air mixture voltage per the service manual referenced!