TSIMonsteR
15+ Year Contributor
- 1,872
- 22
- Nov 23, 2003
-
HP,
North_Carolina
Assistance requested: This is long, so key points are in bold.
Alright, I'm still fighting some gremlins with this car. In a nutshell, it hits a fuel cut like wall at 3500-4000rpms at WOT (anything more than about 50% actually). It drives perfectly fine otherwise. Starts on first turnover, idles like a kitten at 900rpms, boosts fine (going WOT after 4000 works fine). I assumed it was ignition or leak related, so I've tackled the issue with that in mind, addressing known exhaust leaks (replaced turbo, manifold, and gaskets)
I've tried everything my limited knowledge has provided:
-MHI Big 16G
-FP Exhaust manifold
-Dejon UICP & j-pipe, stock lower
-new fuel pump (upgraded to wally 255)
-new fuel filter (OEM)
-new coolant sensors
-new bosch o2
-Evo 560cc injectors
-Known good MAF with clean K&N
-Known good CAS
-Known good igniter
-Known good coil pack
-New battery
-New alternator
-New plugs (BPR7ES, tried all sorts of gaps, settled on .026)
-New wires (NGK)
-No exhaust leaks
-No cat or flex section to get clogged, open type muffler
-Boost leak tested (OVER AND OVER)
I've researched the issue thoroughly and found several users with the exact symptoms, but have yet to find a cure for my particular instance. (I've tried every suggestion I've read)
Last night I pulled the ECU (socketed last year by ECMLink) and it looks perfect, to leaks or bulging caps. I tried to reference the model number, but it appears it was originally bought reman'd so the MD number on the top is not present. The number on the side is E2T35XXX.
Now the kicker, I couldn't remember if it ran fine on the non-eprom ECU it had before or not, so I pulled it out to take a look and found that it was from a 90. My first thought was that maybe 14 and 6 had been swapped on the car and I need to swap them back, but this isn't the case.
Does anyone have any suggestions?
Alright, I'm still fighting some gremlins with this car. In a nutshell, it hits a fuel cut like wall at 3500-4000rpms at WOT (anything more than about 50% actually). It drives perfectly fine otherwise. Starts on first turnover, idles like a kitten at 900rpms, boosts fine (going WOT after 4000 works fine). I assumed it was ignition or leak related, so I've tackled the issue with that in mind, addressing known exhaust leaks (replaced turbo, manifold, and gaskets)
I've tried everything my limited knowledge has provided:
-MHI Big 16G
-FP Exhaust manifold
-Dejon UICP & j-pipe, stock lower
-new fuel pump (upgraded to wally 255)
-new fuel filter (OEM)
-new coolant sensors
-new bosch o2
-Evo 560cc injectors
-Known good MAF with clean K&N
-Known good CAS
-Known good igniter
-Known good coil pack
-New battery
-New alternator
-New plugs (BPR7ES, tried all sorts of gaps, settled on .026)
-New wires (NGK)
-No exhaust leaks
-No cat or flex section to get clogged, open type muffler
-Boost leak tested (OVER AND OVER)
I've researched the issue thoroughly and found several users with the exact symptoms, but have yet to find a cure for my particular instance. (I've tried every suggestion I've read)
Last night I pulled the ECU (socketed last year by ECMLink) and it looks perfect, to leaks or bulging caps. I tried to reference the model number, but it appears it was originally bought reman'd so the MD number on the top is not present. The number on the side is E2T35XXX.
Now the kicker, I couldn't remember if it ran fine on the non-eprom ECU it had before or not, so I pulled it out to take a look and found that it was from a 90. My first thought was that maybe 14 and 6 had been swapped on the car and I need to swap them back, but this isn't the case.
Does anyone have any suggestions?
Last edited by a moderator:
