SR20DET Only idles right when cold??????????????
-
phroze2001
- Posts: 55
- Joined: Thu Dec 09, 2004 4:33 pm
- Car: 1990 240SX with sr20det
SR20DET Only idles right when cold??????????????
I have an sr20det that i just installed into my 1990 240SX it starts up nice and idles great when cold but as soon as it warms up it doesnt want to idle right kinda wants to die but runs fine when i rev it up. Any help would be greatly appreciated.
-
phroze2001
- Posts: 55
- Joined: Thu Dec 09, 2004 4:33 pm
- Car: 1990 240SX with sr20det
-
AmIdYfReAk
- Posts: 72
- Joined: Fri Oct 29, 2004 1:12 pm
- Car: 1990 240SX Coupe
-
phroze2001
- Posts: 55
- Joined: Thu Dec 09, 2004 4:33 pm
- Car: 1990 240SX with sr20det
Re: (AmIdYfReAk)
I used the sr20det MAF the one that came with the swap
-
Eikon
- Posts: 6928
- Joined: Sat Apr 24, 2004 3:20 am
- Car: 71 240z, 93 Supra TT
- Location: Lake Orion, MI
- Contact:
Re: (phroze2001)
You will have to forgive me because I don't know SR20's very well.
My RB had the same symptoms. I took off the Auxilary Air Controller and cleaned it really well. Then I put it back on and it ran much better.
The AAC should be on the intake manifold somewhere.
When cold, then ECU uses a closed loop to control idle. When it finally warms up, it opens the loop and exposes it to run the way sensors input.
Hopefully someone can back me up on this.. but if the AAC doesn't work.. check the MAF, then O2 sensor, then Throttle position sensor.
My RB had the same symptoms. I took off the Auxilary Air Controller and cleaned it really well. Then I put it back on and it ran much better.
The AAC should be on the intake manifold somewhere.
When cold, then ECU uses a closed loop to control idle. When it finally warms up, it opens the loop and exposes it to run the way sensors input.
Hopefully someone can back me up on this.. but if the AAC doesn't work.. check the MAF, then O2 sensor, then Throttle position sensor.