TPS symptoms
Drifting
Joined: Mar 2017
Posts: 1,897
Likes: 164
From: Nashville TN
2017 C4 of Year Finalist
Burning Brakes
Joined: Mar 2009
Posts: 830
Likes: 6
So I will say I replaced my throttle position sensor and it was magic. Well washing the engine killed it, the fact is it's apparently been going for awhile. Performance of the car is much better, and fuel mileage has improved which at over $4 per gallon here in So. Cal is a real plus.
4th Gear
Joined: May 2015
Posts: 4
Likes: 0
From: Redding, CA
TPS issues
Hi:
I was wondering and hoping for some input on a TPS.
Looking for the things that tell me when it is going/inaccurate.
It is set right and i do not have a code from it but what i have read, the TPS may still be my issue.
What normally "acts-up" when this is bad?
This is what i have:
Irratice idle
Surging at idle (more cold then warm)
Hard to start when cold.
loss of power at higher rpm's
Possible, heats up faster
I have never changed this. 150,000 KM, auto.
I was wondering and hoping for some input on a TPS.
Looking for the things that tell me when it is going/inaccurate.
It is set right and i do not have a code from it but what i have read, the TPS may still be my issue.
What normally "acts-up" when this is bad?
This is what i have:
Irratice idle
Surging at idle (more cold then warm)
Hard to start when cold.
loss of power at higher rpm's
Overdrive seems to kick in early
Seems to run rich.Possible, heats up faster
I have never changed this. 150,000 KM, auto.
It has not effected my transmission shifting.
I have learned that it is better to adjust your TPS in the idle position to between 0.53-0.54V than to adjust it at WOT.
Adjust it for idle and after it is set then check your voltage at wide open throttle. You should get at least 4.8 to 5 volts. If you don't get that reading you may have a bad TPS.
I adjusted mine and then set my timing to between 2° to 4° TDC and it runs sweeter than it has since I have owned the car.
I still get high idle occasionally but not as bad as when I was adjusting at Wide Open Throttle, as instructed on the shop manual.
IT IS NOTE WORTHY to be sure that your throttle body is good and clean before you do any thing.
I hope this helps
