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View Full Version : car doesnt return to idle right away

Thrill Capsule
11-08-2004, 02:06 PM
I just finished swaping a lower mileage KA and M/T last week. Everything is up and running perfect. Except when say at a stop light the motor doesnt drop back down into idle. instead it revs at about 1700 rpm for 5-10 secs then goes down to Idle.

My EGR is half disconnected but i totally removed it and put a resistor in the line today and it made no difference.

The motor i swaped was a M/T and im still using the A/T harness and ECU. So there are 2 plugs that are supposed to go the TPS, but the M/T only has one. Could this be the reason?

Any opinions or other thoughts?
mjjstang
11-08-2004, 03:00 PM
well im not sure at all, but are you sure your throttle cable is working correctly, like its not sticking a bit. worth a shot, should take 30 seconds to check.
joewantstodrift
11-08-2004, 04:48 PM
im having the same problem with my sr. everyone says its a vacuum leak. i have to check it out in the next few days.
Thrill Capsule
11-10-2004, 12:28 PM
Checked throttle cable and cleaned the throttle body and it is still doing the same thing. Any other suggestions?
stinky_180
11-10-2004, 01:47 PM
I have the same problem, and i cleaned the throttle body, cleaned aiv, cleaned iavc, and still no luck. But i do have a egr code and detonation code. from what i heard, if you block the egr tube on the exhuast side with a nickel or however you want, you can get ride of the problem.
Thrill Capsule
11-10-2004, 09:27 PM
Yeah ive got the exhaust mani welded shut. Im hesitant on deletingthe whole system though, Im gonna hook it back up once i get a header.

Anyway sometime this week or next ill put the old A/T tps sensor on and see if that clears this up. It is very annoying :axe:

Oh yeah thanks for reminding me, im gonna check for codes. No CEL as of now, but it doesnt hurt to look.
stillmatic
11-10-2004, 09:59 PM
The problem is the AUTO ecu. Swap it with a manual. Have you been having cold start problems as well?
Thrill Capsule
11-11-2004, 09:23 PM
No cold start issues at all, but i will put the M/T ecu in then. See if that clears it up.
Thrill Capsule
11-15-2004, 02:08 PM
The M/T ecu has cleared everything up. Thank you stillmatic.