Running super rich. ecu code 12.

[headup240]

I swapped my motor out of my coupe into my hatch. I daily drove it for 2 weeks fine until the brakes got really bad and starter quit. So I just decided to finish my CA swap. I finished it and I took the battery, fuel pump, and maf pigtail. I just recently decided to finish the hatch so I put in a battery, fuel pump and saudered in a new pigtail. I go to start it up and It runs really rich and idles rough. I checked the ecu and it throws code 12 which is the air flow sensor. I've tried three different mafs and a different ecu. Still no luck. The connection to the maf is good and is getting a signal. Any suggesstions? Wire the maf straight to the ECU? and if so what to do with the sheilded wire? Thanks.

[killbillsnj]

sounds like you wired the Maf wrong what maf did you put in


check this they have good diagrams for maf wiring

SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

[erik240sx]

Originally Posted by headup240

I swapped my motor out of my coupe into my hatch. I daily drove it for 2 weeks fine until the brakes got really bad and starter quit. So I just decided to finish my CA swap. I finished it and I took the battery, fuel pump, and maf pigtail. I just recently decided to finish the hatch so I put in a battery, fuel pump and saudered in a new pigtail. I go to start it up and It runs really rich and idles rough. I checked the ecu and it throws code 12 which is the air flow sensor. I've tried three different mafs and a different ecu. Still no luck. The connection to the maf is good and is getting a signal. Any suggesstions? Wire the maf straight to the ECU? and if so what to do with the sheilded wire? Thanks.

did you find an solution?