Problem solved! I explain more on the cause a few post down
My car has been acting funny lately under full boost from 4k and up. It stumbles and misfires irradically as I pull to redline. The problem is best decribed as being very similar to FC(almost like several mini fuel cuts instead of one hard one), and it is usually followed by intermittent normal fuel cuts 50% of the time after the stumbling/choking out hesitation begins. When the problem occurs, my car becomes extremely sluggish and acceleration is extremely irradict. Up until yesterday, I had never gotten a CEL to help pinpoint the problem despite the fact it's been happening for 2-3 months now. I had a suspicion it was a problem with the MAF or somthing in the secondary ignition circuit. After reading more info , I've found that DTC can be triggered as a result of several things. Has anybody else gotten this DTC, and if so, what was your problem? I'm not easily inclined to buy a new maf and bolt it up there too see if it solves the problem, so I have to make sure nothing else is causing the problem before I replace the unit.
What I've checked out/cleaned so far:
Coils are fine
Plugs are fine
Wires are fine
Maf and IAT have been cleaned with electric cleaner
EGR has been removed and cleaned
TB has been cleaned
Car has relatively new copper plugs as well
All couplings have been checked and re-checked for a good seal .
New Airfilter 4 months ago
Seafoamed every month
Retightened all connections in aftermarket exhaust
Car pulls 22-24 " of HG at idle, so engine vac is good
Boost holds steady. (I'm at stock boost)
my MAF IS RELOCATED!
MODS listed below
I think my problem is being caused by something other than the MAF....
Does anybody know of a definate way to check the MAF?