 Throttle Position Sensor Adjustment |
 Dec 1, 2013 - 1:09 AM
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Enthusiast  Joined Sep 9, '08 From Jamaica Currently Offline Reputation: 1 (100%)  |
Hello,
I had to pull off my tps recently and i installed it again without much thought......i got misfires at WOT and it hit me instanly the tps needs to be adjusted properly...... What is the procedure for said task? And what resistances shud i be reading between which terminals.... |
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Dec 13, 2013 - 6:03 PM
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 Enthusiast Joined May 13, '06 From Kaimuki, HI Currently Offline Reputation: 10 (100%) |
If you are getting a constant flashing CEL when you jump the pins then you should check the code and see what it breaks out to. Long blinks are the first digit, short blinks are the second digit, so 1 long and 4 short is code 14.
Concerning the TPS, adjust it with a mic based on my first response. Concerning the air/fuel ratio under load, it is good to have your AFR drop when you are under load. AFR set to lambda with high boost produces too much heat and can damage the turbo. When tuning, I would gradually lower the AFR as the boost level increases. Since you are only hitting 10 psi, you could safely set it to 11.5 AFR and still get a lot of life out of the turbo. Anything more than 10 boost and I would change it back to 10 AFR. When you get another laptop to interface with your engine management look for a table called "AFR setpoint" or something like that. Does your engine management automatically adjust the fuel going into the engine to reach the set AFR or do you have to configure that? You should have a fuel map that you can adjust, just lower the numbers in the cells of the map on the RPM/load that you want a higher AFR. Keep doing runs until you hit 11.5 AFR where you want it. Also if you have closed-loop control enabled, I would disable it while you are tuning. (all of course after you get a laptop) As far as the miss above 5k, I don't know what to tell you unless it is a failing injector. This post has been edited by match220: Dec 13, 2013 - 6:06 PM -------------------- -Jay
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Posts in this topic
Island_Racer Throttle Position Sensor Adjustment Dec 1, 2013 - 1:09 AM
match220 QUOTE (Island_Racer @ Nov 30, 2013 - 8... Dec 8, 2013 - 7:34 AM Island_Racer Ok, so i position the tps based on the specs: engi... Dec 13, 2013 - 9:44 AM match220 I'll read over this more tomorrow after I get ... Dec 13, 2013 - 10:06 AM
Island_Racer QUOTE (match220 @ Dec 13, 2013 - 11... Dec 13, 2013 - 10:18 AM Island_Racer ok, moved on from the TPS to the MAP sensor.
Firs... Dec 28, 2013 - 4:18 PM |
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