6G Celicas Forums

When the car has been running for 5-10 mins, when Im sitting at a light, I idle around 600-700 it seems, it feels like its about to start vibrating like when your about to stall or driving slow in a high gear.

Is it a sign of something or is it normal

This post has been edited by StaticKnotX: Feb 2, 2006 - 7:44 PM

mine is an Automatic and i found a thing on this site about resetting the ECU, i had to take out like 3 fusses after it was warmed up and after a minute i put them back in and the ecu re-set and ever since then its been running strong, it was in a sticky on this site but i forgot where i found it.

Awesome! I want my car running strong again, I've killed it a couple times due to it being so low when i go from a light, its on the urge of stalling, I have to give it more gas then usual to get it going

Well I removed the ECU Fuse, Hazard fuse and the EFI Fuse after I warmed my car up. Took them out for 1-2 minutes, put them back in, and let the car idle for 10 mins..It was doing fine up until the last 2 minutes and then it dropped down again, the rpms. 700 or so RPM and it feels like it wants to die. I also noticed that when my lights are off, it drops lower then if the lights are on. Wtf causes that. I turn my parking lights on, the rpms bounce up another 100-200 rpm and stay steady at 800..but with them off its about 650-700 and vibrates. Any ideas?

EDIT: Doh, I forgot to turn the car off after the 10 mins was up, then turn it back on, could that be why it didnt seem to do anything? Ill try again in the morning

I havent tried unhooking the battery yet, should I? Getting dark so Ill try it tomarrow if you think it'll help

This post has been edited by StaticKnotX: Feb 3, 2006 - 12:07 AM

95 st manual's idle speed is supposed to be 700rpm, i just took that straight out of chiltons. your idle speed varies in accordance to all of the data that sensors feed to the ecu. variance in electric load, coolant temp, etc. will all alter the idle speed.

This post has been edited by celicaST: Feb 3, 2006 - 12:20 AM

Hmm, I guess its fine then, but it still seems lower then it should be. Car vibrates and such, letting the clutch out will instant kill it, it doesnt let the rpms "drop" like it used too, I have to basically apply gas before even letting the clutch out a little more then usual

could be some other problem, maybe a vacuum thing or something?

well, clogged fuel injectors?? try running SEAFOAM thru ... well everything gas tank, intake, crank case. if that doesnt solve the problem. might just wanna try a basic tune up might solve the problem, could be fried spark plugs, clogged intake... alot of things could result in such things beyond the ECU

First do what blu94gt said and see if you have a vaccuum leak.

If you don't have a leak then try resetting the ECU and have it go through the 'relearn' procedure.

While the engine is cold, put the car in neutral, unbolt the wires on the postive terminal on the battery and disconnect them for a few seconds, reconnect them and then turn the car on and let it idle until its at normal 'operating' temperature (when the needle on the gauage doesn't move anymore) let it sit for another minute then turn the car off. Will hopefully be fixed then.

Thanks, Ill try it

did that solve the problem?

I have had that too... I have had the engine out for about a month.. so I may need to reset the ECU... anyone find that step by step how to?







~Daniel

This post has been edited by Jaws4God: Feb 6, 2006 - 1:10 AM

When I unhooked my battery for the first time and then reconnected it I had low idle. It would be to the point where when I would be sitting at a stop I would have to punch it to burn all the gas that was being dumped in. With this condition there is no such thing as WOT. You can put your foot to the floor and have little or no acceleration. I went through a tank of gas in one day. How I fixed it was I unhooked and then rehooked the battery and turned the car on and left it. The ECU needs to be at idle the whole time for it to be able to accurately adjust itself to everything. Just leave it in neutral and go have a sandwhich or something, I dont know. Then come back and shut it off and all should be gravy.