I just noticed recently that my vafc does not read 100% on WOT. It only reads 100% when i turn on the ignition and step on the throttle. It go 92,95,96 on WOT but never reach 100%...pls help and thanks much in advance

 

im pretty somebody here had a problem like this before..pls help

 

try to make your throttle cable a liil tighter and see if that helps

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbofienD 04 &raquo;</TD></TR><TR><TD CLASS="quote">try to make your throttle cable a liil tighter and see if that helps</TD></TR></TABLE>

i dont think it will do anything at all, it will just raise my rpm...also, when the car is on idle, my throttle position on my vafc keeps going up and down. it will go 0.1-1.3 without touching the throttle. Isnt supped to be 0.0 when the car is on idle?
thanks again

 

oh ok than that wont help i was asumming it was at 0 when at ide

 

Make sure the TPS is at .50v at idle and 4.5v at WOT.

Take the slack out of the throttle cable too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Big Teggie &raquo;</TD></TR><TR><TD CLASS="quote">Make sure the TPS is at .50v at idle and 4.5v at WOT.

Take the slack out of the throttle cable too. </TD></TR></TABLE>

ok, i just did it, but i didnt check the wot, what if the WOT is 4.7v, is that too high? speaking of slack of throttle cable, if i make it just about the right lenght for the cable, the idle will be a little high than normal...but the funny thing is my throttle sensor on my vafc keept moving while the car is on idle, isnt supposed to be "0" when its on idle...its moving from 0-1.3...and it will throw cel code 7 occationally when i start punching it

 

i would not worry about that at all

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted k20 &raquo;</TD></TR><TR><TD CLASS="quote">i would not worry about that at all</TD></TR></TABLE>

may i ask y not? my car is not reading to 100%, obviously when its not reading to 100%, the car is not running to its full potential. Its about the horsepower or anything, its more of like wanting the car to run perfect.

 

if ur running over 90% on the VAFC then u should not worry about it too much. i've seen few cars with safc's, vafc's run in the mid 90% w/o hitting 100% at wot. it's just a error in the afc

 

thanks man, at least i know now that it was not such a big deal. the highest ive seen so far is 96-98%, i mean it will jump to 100% for like a sec or two and goes back in there again. I thought that i should always be 100% when WOT...thanks much

 

I'm not sure about the VAFC but I wouldn't recommend messing around with the TPS if your car is idling and running smoothly at the moment, you might case more hassle than its worth.