Hello,

I have somewhat of a strange idle problem and haven't been able to fix it easily. Here's my setup so what I'm about to say makes more sense:

d16y8 motor
d16y7 engine harness
y7 ecu (Not P2P... I think P2E, no IACV)

Essentially I don't have an IACV that I can find in my engine bay, nor the correct P2P ecu for the motor or engine harness even. Anyways, what happens is that when I start my car it will idle cold for a bit at about 2000 rpm, then over time fall to 1000, where it will stay for awhile. However, after I drive on the freeway for a little while (I drive about 10 miles to and from school) the idle will drop down to 500, 300, or below. The engine has actually stalled twice due to idling low. I don't think that it hurts the motor, but it is very annoying in stop and go traffic as when I put the clutch in the RPM's will drop incredibly low and I have to worry about stalling.

So... today I messed with the throttle cable a bit, since I don't really know what else to do, and I moved it out (ever so slightly more tension). The car now idles hot at about 500-700 rpm and starts cold at about 2200~ rpm. The throttle cable is pretty messed up though, so I'll probably have to move it back. I put the clutch in and it goes up to 2200rpm every time... then I pull up on the gas pedal and it drops to 1000. Stupid.

What I'm wanting to know: is there a way to correct my idle problem since I don't have an IACV? Any sensors on the d16y7 intake manifold (what I believe that I have, since I don't have an IACV that I can find) that could help my idle problem?

I suppose that I could get a y8 intake manifold and IACV, then wire it in, but that would require my ECU pins being able to be released since the white clips are stuck. Nothing on my car has ever been easy to do, sadly.


Sorry for being so wordy, but I felt that it might be necessary to accurately convey what my problem was.


Thanks for any help,

Sean M

 

Oh... and my engine does throw two codes, but they are o2 sensor heater circuit and the car running too rich/lean. The latter is caused by me having to move my 2nd o2 sensor before the catalytic converter as opposed to after where it is stock.

I also moved the throttle back to normal position, as it was too screwed up to keep driving like it was. If you kept it in gear and tried to stop, it didn't anywhere as quickly as it should (on the gas and on the brake at the same time). If I had a turbo it'd be great for brake boosting, but seeing as I don't it doesn't do me any good :-/