Car doesn't run well. At WOT it is really good, but in closed loop lower RPMs are pretty rough. It was right at 2000 rpm but now it is a little lower than that. I replaced the TPS with the one from my old engine. It seemed to run a litte better. I puled codes. I am working through a KOEO 91c / KOER 92 codes. Lean & Rich on the same side ???
I have a recently installed engine and RJM EFI harness. The one that FFR sells. The RJM harness has 3 wires to the o2 sensor connections. The 16" Bosch sensors have three wires. My sensors are in the 4x4 collector areas. Is the heater circuit supposed to be grounding through the pipes?
I checked the bolts on the headers, still tight but I get a lot of noise on throttle release after hard acceleration, so I have to think about header leak as well. I checked the plugs on the driver side - they are all a nice clean light grey.
Plan is to swap the two sensore to see if the problem moves. Aside from that I need some ideas on what else to check and how to check it.
Any information on the o2 sensor heaters would be welcome
I have a recently installed engine and RJM EFI harness. The one that FFR sells. The RJM harness has 3 wires to the o2 sensor connections. The 16" Bosch sensors have three wires. My sensors are in the 4x4 collector areas. Is the heater circuit supposed to be grounding through the pipes?
I checked the bolts on the headers, still tight but I get a lot of noise on throttle release after hard acceleration, so I have to think about header leak as well. I checked the plugs on the driver side - they are all a nice clean light grey.
Plan is to swap the two sensore to see if the problem moves. Aside from that I need some ideas on what else to check and how to check it.
Any information on the o2 sensor heaters would be welcome
