bang47

hey while im driving at low speed and sometimes at 60 my car just turns off randomly, i just recently changed my air value control also, can anyone please help me!!!

Catfisha

I assume it was a new IACV....maybe it's defective? Is your idle rough?

Catfisha

What prompted you to change the valve in the first place?

CL-S progression 01

iTrader: (2)

the iacv won't cause the car to shut off when driving. sounds like a fuel pump relay orr main relay??

these seem to be the 2 most common ways our cars fail to stay running.

AnthraciteTypeS

The IAC could cause the car to shut off- mine has in the past. When you push the clutch in the rpms dip and just don't "catch" themselves and the car dies. It's only happened once or twice, but definitely possible

CL-S progression 01

iTrader: (2)

forgot to ask if it was auto or not i assumed auto

bang47

It is auto. My car was idling rough. Has gotten better since I replace the air control. Thought it would slove the problem. And it hasn't. And its starting to piss me off lol

CL-Future

Have you had any electrical work done recently? Car alarm, audio video, etc? It could be a short or like mentioned earlier a fuel/main relay problem.

bang47

My alarm system was installed couple years back. I had stero system. But took out my speakers and just have the wires covered up

civicdrivr

iTrader: (9)

Check your grounds, specifically in the engine bay.

brian6speed

iTrader: (5)

On my manual when I had a vacuum leak, if I put the car in neutral the rpm's would drop to 0 and engine would shut off, but you have an auto.

bang47

Thanks guys. Appreciate the help. Would def try all the suggestions

Sniffles

check fuel pump. my gf cl-s shut off randomly too and it turned out to be the fuel pump. or the sensor. my old audi had that problem and i would either have to wait 5 min with my gas cap open or just open the gas cap lol

yungone501

iTrader: (4)

There's only one component on the J32 that electronically controls the idle speed and stability: IAC valve. That doesn't mean the idle couldnt be affected by any mechanically issues. Especially those that the IAC valve couldn't compensate for...like a large vacuum leak. I see J32's all the time in my shop most commonly for 2 reasons: misfires and idle problems.

I see many defective IAC valves especially when bought aftermarket. I've learned it's best to go with OEM. There's three circuits on the IAC. One will be a power (with engine running), the other a ground and last is the ECMs signal to actually control the valve. It's easy to test power and ground but the signal requires a bit more finesse when using a standard DVOM (voltmeter) and any scanner that has powertrain functionality control. If you're pulling any type of code that pertains to IAC circuit (in specific), then chances are your issue is not directly related to the IAC valves circuitry such as the harness and/or ECM. Although you could still have an electrical issue.

As I mentioned earlier, there many other mechanical issues that could be contributing to your issue. Vacuum leaks, air-distribution issue to IAC supply (clogged/dirty), throttle body valve (dirty/clogged), intake blockage (generally associated with low power), just to name a few.

civicdrivr

iTrader: (9)

^ The IACV wont cause the car to stall at speed. It only controls idle.

OP - Looking over this thread again, Im surprised it hasnt been asked yet. Any check engine lights?

yungone501

iTrader: (4)

I thought he had stated that when he pushed his clutch in it stalled but I now see that was someone else's response.

OP, no codes or MIL?

14thandeuclid

Alternator could be shot? Maybe a bad ground.

Have you scanned for codes yet ?

o1s

mine used to do this. it ended up being the main relay.