Ok, sooooo the main fuel pump was dead and fuel filter clogged.... I's at least running now...but still surges and gurgles between 2000-3000rpm..or when trying to maintain a speed. Additionally, when clutch is pressed at speed and starting to slow down...it idle hunts until the car is fully stopped. I have hp tuners and can post the scan if someone would like to read it for me... Here's the DTC codes... Oh, and it's a g5x3 cam, afr205 heads, lg pro headers/no cats... With the codes I'm thinking my O2 sensors are bad? Any thoughts??

Here's the DTC codes...


[PCM] P0134 - HO2S Circuit Insufficient Activity Bank 1 Sensor 1 (Pending) (Immature)
[PCM] P0154 - HO2S Circuit Insufficient Activity Bank 2 Sensor 1 (Pending) (Current) (Immature)
[Brake] C1225 - LF Excessive Wheel Speed Variation (History)
[Brake] C1277 - Requested Torque Signal Circuit Malfunction (History)
[Restraints] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
[Restraints] U1096 - Loss of Communications with IPC (History) (Immature)
[Restraints] U1000 - Class 2 Communication Malfunction (History) (Immature)
[Convenience] U1096 - Loss of Communications with IPC (History) (Immature)
[Convenience] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
[Convenience] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
[Convenience] U1096 - Loss of Communications with IPC (History) (Immature)
[Convenience] U1064 - Loss of Communications with DIM (History) (Immature)
[Convenience] U1096 - Loss of Communications with IPC (History) (Immature)
[Convenience] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
[Convenience] U1000 - Class 2 Communication Malfunction (History) (Immature)


Continuous Tests
Misfire: Complete
Fuel System: Complete
Comprehensive Component: Complete


Once Per Trip Tests
Catalyst: Complete
Heated Catalyst: n/a
Evaporative System: Incomplete
Secondary Air System: Incomplete
A/C System Refrigerant: n/a
Oxygen Sensor: Incomplete
Oxygen Sensor Heater: Incomplete
EGR System: n/a

 

Hey, I have the same problem with the g5x3. It'll hang at whatever rpm I've been cruising at or just randomly when its not warmed up fully. Also, like you said, it'll bounce around when you come to a stop to find idle and will hang til you stop fully. I don't have any DTC codes though (current at least). Interested in what input you recieve. Sorry I can't be of any real help.

Looks like all your codes are history codes except the first two, maybe those codes are from the deleted 02 sensors? Did you have the car tuned ever?


btw just for reference I have Z06 heads, LG Streets(w/cats), and a Vararam.

 

Do you have a tune or still on the stock tune?

 

I'm on a LG mail tune. It's worked great for a long time. I just sent a scan to LG...says both my O2 sensors are flatlined.... Have new ones on the way... hope that's the cure... 1500 bucks in repairs in the last 2 months....ugh, I'm not liking this at all