my friend, who owns a 93 integra LS, just recently swapped out his throttle body for a JG bored throttle body. it didnt come with a TPS, so he put the TPS on his stock throttle body and attached it to the JG throttle body. he is havin a problem with it. at first, his car would idle all the way to 4000 and stay at that. he adjusted the idle screw and go the idle lower... but its still making a winding noise. the ecu is still shooting out a check engine light. the code was pulled up as being a problem with the TPS. anyone have an idea what the problem might be?

 

I know you dont want to hear from me, but I think that you'll have to calibrate the TPS. PM tinkerbell I think he can help you.

 

im tryin to find out the best way to calibrate it. ill hit em up with a pm. thanks.

in the meantime... if anyone knows... post up your tech advice.

 

I have heard of people using an afc to calibrate it. :shrugs:

 

should be about 0.5v at idle and 5.0v at wot please test w/ engine off =D rotate the tps to achieve the proper value.

 

I had my stock TB bored out and when they put the TPS sensor back on, the voltage was off once I got my car back together. I was having stuttering problems at take off and during cruising. I used my Hondalogger, which shows the exact votage of the TPS. I just loosened the TPS screws and turned it until it showed .45v on the Hondalogger during idle..........everything is fine now.

 

unfortunately, he doesnt have a hondalogger or an SAFC... but im sure he can find an alternative. thanks for the info so far, guys.

 

There are more problems than just a TPS issue or a idle screw issue sounds like a gasket or fast idle leak (only if it is attached to the TB) anyway good luck.

 

one problem at a time
if the CEL says TPS sensor, fix the TPS sensor then move on.

 

Im sorry for trying to help a little more.

 

hey its good advice
but you dont want to get him in over his head

 

True

 

I do this every time, you can take the TB to anyones car with an afc. Otherwise check the voltage at the ecu plugs.

 

use a digital multi-meter and measure the voltage from the TPS signal wire to the ECU.

should be 0.5V closed throttle and 4.5V or more at WOT.

if the voltage is off at closed throttle you should be able to loosed the TPS sensor (loosen not remove) and adjust it because ther are a couple of small slotted holes where its mounted to the T/B. you should be able to rotate it enough to bring the voltage down to 0.5V at closed throttle.

but since you and your friend messed around with the idle screw and such you will probably never get it perfect again. but you can come close.

HTH

good luck