code 34 sudden issues

[morganson]

So I just got done putting a new alternator in my car after having some issues. However I am now having another problem. If I try to gas it the car jerks and pops and flashes a code at me. Running a test finding a code 34. This is a factory turbo car I have a maft with 550cc injectors wastegate is an 11 psi gate! I have a profec a but its not turned on. Help me out guys this is driving me crazy!

 

[IndigoMKII]

Over boost code also known as fuel cut. Check for boost leaks and it could be something with your maft.

 

[morganson]

I thought when you did the maft and 550 it moved your boost cut?

 

[jdmfreak]

Yeah if you're tuned properly are you running speed density?

 

[morganson]

Old maft....

 

[supraguy@aol]

It does move your boost cut somewhat, but if you blew a pipe or coupling, you'll have the symptoms you're having.

 

[morganson]

So I poked around this morning and found one of my lines going to the controller had collapsed and burst. So I took it off and routed it back stock. So should be golden at 11 psi right? Not. It keeps going past 11 and when it hits 13 it starts poping and carrying on. New thing though, this time during the popping it surged to 18psi! Woot. So I dropped it to second and brought it up to 6k modulating between 5 to 9 psi no problem opened it up and it did it again. Have no reason to beleive the ignition is the problem here because it does the same on any of the three I have here. (Stock, IS, and DG) it craters right after 12 psi. Thoughts?

 

[hvyman]

How is it hooked up. And which line burst?

 

[morganson]

Right now right out of the turbo right into the wastegate. Factoy. It had burst at the wastegate. I'm leaning toward a bad or slow wastegate but I just bought this from DM early this year.

 

[hvyman]

With no boost control your only going to see what the wastegate spring pressure is. You won't see 18psi if the wastegate spring pressure is 8 psi and no boost controller hooked up.

 

[supraguy@aol]

and yet he states that he does see 18psi...and he's already mentioned that he has a DM 11psi wastegate installed.
sounds to me like the wastegate is the problem.

 

[jdmfreak]

What turbo?

 

[hvyman]

Indeed. Does sound like bad wastegate.

 

[IndigoMKII]

pump air into the waste gate to see when it moves. either the waste gate is faulty or the air isn't properly getting to it

 

[morganson]

57 trim c26. Nothing to fancy. I have another wastegate I'm going to swap over as soon as I can stop working.

 

[morganson]

Well switched out the waste gate. Doesnt spike anymore. Bad news is I fried another alternator and lost second gear. I'm on hiatus. Gotta recoup and figure out how I'm gonna fix this thing.