My truck started missing hard again today. I have had the Quad box off for about a week. I wanted to make sure it wasn't the problem.
So with the box on or off the truck the problem occurs after a long hard pull in sixth. Today I was passing pokey's on the two lane. Luckily it didn't crap out until I made the pass.
EGTs go way up, boost way down, sounds like its on five cylinders. At idle EGTs stay up, wont drop below 450, normally they would be around 300. No power. No fuel in the oil. Best of all, it self repairs overnight, at least it has the last five times
Codes
477, never seen this one before, exhaust pressure control relay low
Are we talking wastegate solenoid voltage low?
234, Overboost, though the gauge never exceeded 30 psi and was probably at 27-28 when the codes set
2149, injector harness voltage for second group of injectors
204, Problem with #4 injector voltage
Seems like something gets too hot, the circuit opens and doesn't close again until whatever is failing cools down again.
I have it the driveway with a fan blowing on it. I was on my way to grab my snowmobile and trailer. Now I am stuck home while it is freaking dumping snow. I'm gonna try it after about two hours with the fan on it, maybe It'll clear up
Looking for ideas, similar experiences. It goes to the dealer Monday.
So with the box on or off the truck the problem occurs after a long hard pull in sixth. Today I was passing pokey's on the two lane. Luckily it didn't crap out until I made the pass.
EGTs go way up, boost way down, sounds like its on five cylinders. At idle EGTs stay up, wont drop below 450, normally they would be around 300. No power. No fuel in the oil. Best of all, it self repairs overnight, at least it has the last five times

Codes
477, never seen this one before, exhaust pressure control relay low
Are we talking wastegate solenoid voltage low?
234, Overboost, though the gauge never exceeded 30 psi and was probably at 27-28 when the codes set
2149, injector harness voltage for second group of injectors
204, Problem with #4 injector voltage
Seems like something gets too hot, the circuit opens and doesn't close again until whatever is failing cools down again.
I have it the driveway with a fan blowing on it. I was on my way to grab my snowmobile and trailer. Now I am stuck home while it is freaking dumping snow. I'm gonna try it after about two hours with the fan on it, maybe It'll clear up

Looking for ideas, similar experiences. It goes to the dealer Monday.
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