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Quiche2192 · 12-04-2022, 01:37 PM

My SR20DET seems to be running lean according to my innovate wideband.

I've checked fuel pump (hardwired to battery), fuel pressure (50psi no vacuum), injectors are good, no exhaust leaks, cleaned MAF, calibrated O2 sensor.

My AFRs used to be 11.3 at WOT, now it's like 11.7 pretty consistently, and I am getting a knock sensor code 34. I do remember the car running bad after I cleaned the engine bay. I think some water may have gone into the intake. I did clean the MAF, but still.

Could the MAF have gone bad?

12-04-2022, 01:37 PM	#1
Quiche2192 Join Date: Oct 2018 Location: FL Age: 32 Posts: 47 Trader Rating: (0)	Lean AFRs My SR20DET seems to be running lean according to my innovate wideband. I've checked fuel pump (hardwired to battery), fuel pressure (50psi no vacuum), injectors are good, no exhaust leaks, cleaned MAF, calibrated O2 sensor. My AFRs used to be 11.3 at WOT, now it's like 11.7 pretty consistently, and I am getting a knock sensor code 34. I do remember the car running bad after I cleaned the engine bay. I think some water may have gone into the intake. I did clean the MAF, but still. Could the MAF have gone bad?