blackedoutFC3S

iTrader: (7)

So, I've done a lot of work to my car in these last couple months, and I've gotten so much done but i still seem to have one problem, which is erratic idling. I can not get my idle to drop below 1500 RPMs, which after all I've gone through with this car i was ok with, but the idle was jumping from 1500-1800 RPMs constantly, so a friend and i adjusted the TPS to where it would stop the bouncing, but once we reved it up and it would drop it would go back to the erratic idling then level out again. No matter what I do the idling always seems to be erratic no matter what I do with the TPS, so if anyone has any idea what it could be or has had this before just let me know please! Thanks for the help!

KhanArtisT

iTrader: (2)

Idle can be many other things. Using the TPS to fix it is just band-aiding another problem which could be hurting the performance in another way. Just set the TPS to 1DCV (or 1000ohms) at idle and check other places like vacuum leaks (carb cleaner test), BAC, etc.

blackedoutFC3S

iTrader: (7)

Ya I've been researching a lot through it and I'm gonna try vaccuum leaks tomorrow and move on from there and try and see what happens with it.

blackedoutFC3S

iTrader: (7)

i was just wondering if anyone had has this exact problem before and what they had done to fix it...

HAILERS

This problem has been repeatedly posted on this forum over the last decade. How to search for it is up to you. Just saying it's been posted a bunch in the past. Nothing more, nothing less.

Could be a vauuum leak. Could be one of the three vacuum hose on the front of the dynamic chamber are misrouted/swapped.

Could be the water thermowax maladjusted. Could be too tight a throttle cable. Could be a BAC that's stuck open a bit. PUll it's plug off and see if there is a change........or not.

Could be the timing being advanced to far . You can't check that because you need the engine below 1100 rpm for the timing to be checked.

Could be injector grommets that are rock hard leaking air. Vacuum leak in other words.

Idle the engine and spray the engine liberally with starter fluid. Two cans or it. See if the engine speed changes as you spray.

Search the site.

With a HOT engine, pull the intake duct off and look at the throttle plates to see if they are completely closed....or Not.

blackedoutFC3S

iTrader: (7)

alright thanks a lot guys... i made a list of everything i need to check

it shouldnt hurt if i drive it with an idle like that should it?

HAILERS

Probably not at all. Carry taxi fare or at least a quater for the phone or a cell phone.

blackedoutFC3S

iTrader: (7)

ya i figured haha the only day i really want it is this wednesday for my girlfriends birthday cuz she loves it and i havent been able to drive her in it yet but after that imma get it all fixed up

oh and thanks HAILERS youve been a lot of help!

blackedoutFC3S

iTrader: (7)

so a friend and i took the TB off and tightened the connection near the throttle cable and now it idles beautifilly! sounds amazing, thanks a lot for your help guys i tested out some of the stuff and went back to the TB cuz i figured it was it and got it adjusted, thanks again everbody!