is it me or is this post messed up?

 

man im in the same boat as you.. did the diagnostic check and code 18 poped up.. so im going to go thru all my wires on the ecu tmorrow..(i use to havea s-afc)

nick

 

lol. funny. i see a post that is supposed to be about a tps posted by someone named tweaked, and jrat is the poster. server is being funny tonight.

 

My computer did some weird stuff when I tried to post that. This post is messed up.
Any way,
I have been trying to set my TPS. I made a test lamp from LEDs. it didn't work. NOw I know why. all three connectors on the green plug behind the air filter have a voltage of 13.2 when the key is in the on position but the motor not running. so what is supposed to be ground, isn't. Messed up.
So I check the other sensor, the white on behind the air filter. remembering I saw an FAQ that said to use this instead, or I had it confused and I was supposed to be using this one anyway. But I could remember settting the TPS on my '88 with the gren one. anyway all four of the connectors tested 1.4v but one that was 13.2v
I hope I remember all of this correctly, it has been several hours since I posted the origonal.
So I tried to set it myself anyway, making a ground for the LEDs. both were on. I had to turn over 5 full turns to get on LED to go off. I started to doubt my self again. manually depresing the sensor. finally got it right I think, but it still does the hesitation in the high RPM.
Not just once but several times. Like a surging without a timing pattern.
It doen't do it as badly but it is still there.
any ideas?

 

are you setting it with a warm engine? if not you will go crazy tryin to get it to set. (don't ask how i know that)

if that doesn't help, i just got done dealing with a massive hesitation issue and it looks as if it was my AFM and i was having similar probs to yours.

good luck, have fun

 

Or it could be the pressure sensor, those are known for causing hesitations when they're not working/not hooked up/no restrictor pill in the line!

 

Its not me man, I just saw this post, and tried to answer but there was no question. My TPS is fine.

 

fUNNY

 

What the hell is a restrictor pill and where is it supposed to be?

 

Its a orifice and its located in the boost/pressure sensor line. Search for orifice and you'll find the part number, sooner or later. I've posted it at least twice.

 

To set TPS in a s4 Turbo, warm engine to normal operating temp. Then shut car off. With key turned to the "on" posistion but engine not running, back probe the green wire using a DMM set to a 12v scale. Adjust the screw right beside the TPS till your DMM reads .98volts. Now your tps is set.

 

AUGH!!

I didnt even start this damn thread!

Where the hell did this come from?

Jarrett

 

We all know you need help regardless Mr.Rat

 

I aready knew that..