ENGINE LIGHT?????

[Southpaw]

PO603-is nothing at all to worry about. It is either from your tuner, or it indicates the batteries have been diconnected.
PO541-i'm not sure, is your AIH plugged? That's all I can think of.

clear them and see what comes back.


chris

[dointime4alivin]

(is your AIH plugged? That's all I can think of)

What is an AIH?

[Goose]

not trying to jack the thread anyone know of a good code puller and something to clear it and I got the low fuel air mixture code as well not a biggy

[dointime4alivin]

Okay fellows I have decided from reading this forum. ( I am new to diesels), that I am expierencing turbo surge but I still don't know why my CEL comes on. It will go off after a few minutes but the CEL really has me worried. Does anyone else get the CEL during turbo surge? You guys are a wealth of knowledge and have already been very helpful. I get the feeling I will be on this forum alot.

[Southpaw]

I was always told it was a low fuel pressure thing. That you really just scare the computer, it throws a light at you to make you stop. You stop, and the light goes away after a few minutes of driving normally. Thats the way it works in my truck. I don't know if it hurts anything or not to be honest. I think it's pretty common with chipped/programmed trucks where the fuel limitations are removed.

AIH is Air Intake Heater.
The PCM will activate the AIH to reduce white smoke during long idle periods at low ambient temps.
Some people plug theirs, since you threw a PO541, that's the only reason I asked if you did.

Good Luck
chris