ryshinazy
10+ Year Contributor
- 31
- 1
- Apr 4, 2010
-
Berthoud,
Colorado
Ok guys I'm at my wits end with this issue. I've done research on here and tried everything I found with no solutions, and I've also used Identifix and Alldata and I'm running out of parts to test or replace
The car:
It's a 95 GSX shell and awd trans with a 97 GST motor, wire harness and ecu. Mostly stock, w/ injen intake, obx front mount, 3" down pipe back exhaust w/ magnaflow CAT, ssqv bov
The problem:
Once the vehicle is warmed up a bit and and I'm cruising along the check engine light comes on with a P0300 and bogs down and starts running like shit. If I let off for a while or shut the car off and restart it, it will drive fine for a while. I did notice it seems to go into open loop when the issue happens and it runs like garbage until it goes back to closed loop
What I have already replaced:
Both ignition coils
Spark plugs
Plug wires
Power transfer unit/ ignition control module
Fuel pump assembly
Fuel filter
Fuel injectors
Fuel pump relays
ECU overhauled by ECMTuning
Removed wire harness and repaired wires
Removed timing belt and reset timing dead on
The motor just came from the machine shop with all new internals
misc etc
I'm seriously out of ideas of what it could be and I'm sick of throwing parts at it, does anyone have any ideas of what I can test next or what the problem could be???
I don't have dsm link but I do have a Snap On scan tool for diag
The car:
It's a 95 GSX shell and awd trans with a 97 GST motor, wire harness and ecu. Mostly stock, w/ injen intake, obx front mount, 3" down pipe back exhaust w/ magnaflow CAT, ssqv bov
The problem:
Once the vehicle is warmed up a bit and and I'm cruising along the check engine light comes on with a P0300 and bogs down and starts running like shit. If I let off for a while or shut the car off and restart it, it will drive fine for a while. I did notice it seems to go into open loop when the issue happens and it runs like garbage until it goes back to closed loop
What I have already replaced:
Both ignition coils
Spark plugs
Plug wires
Power transfer unit/ ignition control module
Fuel pump assembly
Fuel filter
Fuel injectors
Fuel pump relays
ECU overhauled by ECMTuning
Removed wire harness and repaired wires
Removed timing belt and reset timing dead on
The motor just came from the machine shop with all new internals
misc etc
I'm seriously out of ideas of what it could be and I'm sick of throwing parts at it, does anyone have any ideas of what I can test next or what the problem could be???
I don't have dsm link but I do have a Snap On scan tool for diag