Winter High Idel Question

[airforcegene]

So i got off work this morning and started my truck as usuall. It was only around 20f this morning and as usual it loped a little. With a little research I found that to probably be the GPR. But it has always ideled up when it was cold and didn't. I recently removed the Ir box to make room for the 6637 air filter and removed the AIH to put a plug in for my boost gauge. Is there any way that this could have affected that? Any other suggestions would be great

[NoRalPh]

The GPR doesn't control the high idle or cause the lope. Lope is from the inability of oil & fuel flow in the cold to keep the injectors from firing when they should.

Nothing to do with the AIH or your new filter either... I would be looking into the EBPV and actuator that makes the system work (restricts exhaust flow at the turbo to make the engine "work" harder and therefor, make heat sooner). Or maybe a temp sensor isn't telling the PCM you're engine is cold?

[airforcegene]

Okay this might be a dum question but is this fix for the lop or the high idle. If it is the pcmcia or a sensor how do I trace and replace.

[Turbostang500]

I had a pretty bad lope when it was cold and had 2 bad glow plugs.

What is wrong with the high idle?
It will do that when the engine coolant temp and oil temp are below a certain value.

[airforcegene]

Originally Posted by Turbostang500

I had a pretty bad lope when it was cold and had 2 bad glow plugs.

What is wrong with the high idle?
It will do that when the engine coolant temp and oil temp are below a certain value.

It doesn't idle up anymore. It did last winter but won't now that's why I was wondering if the sensor in the air box our the AIH had anything to do with it or if it was the EBP sensor

[Turbostang500]

Sorry man, misread what you wrote.

The AIH has nothing to do with it and I dont think the EBS does either because my tube has been broke for a long time and mine still idles up.

When you removed the air box, what did you do with the IAT sensor that was on the box?

[Pipewrench]

When you removed the air box, what did you do with the IAT sensor that was on the box?

What should be done with this sensor? I just did the 6637 mod and zip tied mine next to some other wires. Is that okay or is there something special you should do to it?

[Turbostang500]

Zip tying it out pf the way is fine. Just need it for the pcm to know how cold it is outside.

I dont know if the OP left his plugged in or not.

[shiz big red]

Your park brake has to be fully engaged for the high idle to work. Check the plug connection above the park brake pedal and the bumper on the pedal I had this problem last month.

Sent from my GT-P3113 using AutoGuide.Com Free App

[Turbostang500]

^^ this is not necessarily correct. My truck will high idle without the park brake on at all. I can't speak of all yrs trucks though.