FCar2000TA

iTrader: (7)

I have been having issues with my car trying to die (and sometimes dieing) at stops, but yesterday it just suddenly will not idle at all. If I am not playing with the throttle, or driving, it dies. I was sitting in line at the gas station, and it just died. After that, it will not stay running without throttle. I had to roll up to the pump at 2000 RPMs.

Fuel filter?
Injectors?
Fuel pump?

G Atsma

TB issues? Cable or wire? Can't remember...

FCar2000TA

iTrader: (7)

Cable. Mamo NW 102

G Atsma

Bad IAC motor or clogged passage?

pcguy

Filter, injectors dirty? Any codes?

madmike9396

iTrader: (29)

Check your intake bolts and make sure they are all tight.( the ones that hold the intake down) & even the ones that hold the intake together if its a fast.

Che70velle

iTrader: (6)

TPS, IAC or both maybe. Prolly the IAC is dirty and sticking.

FCar2000TA

iTrader: (7)

Once I get it to idle, even it high, I am going to use carb cleaner to spray around the intake path to see if the RPM changes.

FCar2000TA

iTrader: (7)

Could I soak the IAC, TPS, and MAF sensor in denatured alcohol to clean them?
Or would 99% Isopropyl Alcohol be better, or soak them in MAF cleaner?

FCar2000TA

iTrader: (7)

I am changing the filter this morning. I haven't scanned for codes, but it might not have been happening long enough to get a code. I do have an O2 code, but I had already planned new Denso O2s this weekend

Darth_V8r

iTrader: (4)

I would verify your header primaries are all the same temperature.

Sudden drop in idle quality might be a dead hole

FCar2000TA

iTrader: (7)

I will check that too. If that is the case, the car is sitting until the new engine is done.

QwkTrip

iTrader: (23)

I don't know if this will help, but I had a 4th gen with long tube headers that began to really struggle to idle but would drive above idle. Wires to the O2 sensor had burned and shorted to the header, which also takes out the MAF sensor. Unplugging MAF made the car idle, swapping MAF didn't help and that's when I looked harder at the wiring and found the shorted wire.

FCar2000TA

iTrader: (7)

Thanks. I will check that too

FCar2000TA

iTrader: (7)

Well....... This got more interesting. Now the car idles fine, after sitting for nearly two days

pcguy

Try revving it up a bit to see if the issue returns.

Darth_V8r

iTrader: (4)

Isnt that something? Falls down a well, her eyes go crossed. Gets kicked by a mile her eyes uncross. I dunno

FCar2000TA

iTrader: (7)

Hahahaha, thanks Darth. That made my morning.

LilJayV10

iTrader: (39)

You need to log it when it's acting up so you can make an educated guess about what's actually going on and what to do instead of
1. Throwing parts at it
2. Have a bunch of people make suggestions that may or may not be helpful.

Make sure you are logging desired and actual IAC and STIT.