I have a 93SC and have just upgraded to 36# injectors and a C&L 76mm MAF with the orange sampling tube. I now am getting a bit of hesitation when I get on it and my Check Engine Light comes on when I accelerate. The codes are
172,176 - Lack of Oxygen Sensor(HEGO) Switches - Lean Right Side(172) - Lean Left Side(176)
181,189 - Fuel System at Rich Adaptive limit at part throttle - System Lean - Right Side(181) - Left Side(189)
I know I was running lean with the stock 30's and the stock MAF after results from an AFPR test even though I didn't have any check engine light at that time. I had done the full Magnum Powers upgrade - MPII, MP intake plenum and 85mm throttle body last year.
Have I leaned the car out more by opening up the Intake with the 76mm Maf. Do I have to upgrade to a bigger injector?
Any help would be appreciated.
Thanks - Jim
172,176 - Lack of Oxygen Sensor(HEGO) Switches - Lean Right Side(172) - Lean Left Side(176)
181,189 - Fuel System at Rich Adaptive limit at part throttle - System Lean - Right Side(181) - Left Side(189)
I know I was running lean with the stock 30's and the stock MAF after results from an AFPR test even though I didn't have any check engine light at that time. I had done the full Magnum Powers upgrade - MPII, MP intake plenum and 85mm throttle body last year.
Have I leaned the car out more by opening up the Intake with the 76mm Maf. Do I have to upgrade to a bigger injector?
Any help would be appreciated.
Thanks - Jim
Last edited: