P0204 fault code on 39610 3x2 system
Quote from Diceman on May 16, 2019, 7:03 pmDiceman here. I have a 39610 3x2 system on a small block chevy and I have a P0204 fault code. It is causing an intermittent misfire at low RPM. I'm sure its because of a lean condition on the cylinders near the dead fuel injector. Does anyone know the pin out #s for the fuel injectors on this unit so I can ohm out the injector circuits? The unit is completely installed and the harness is hidden behind the engine so I would like to know if there is a problem with the wiring before I rip it all out.
Thanks, Ron
Diceman here. I have a 39610 3x2 system on a small block chevy and I have a P0204 fault code. It is causing an intermittent misfire at low RPM. I'm sure its because of a lean condition on the cylinders near the dead fuel injector. Does anyone know the pin out #s for the fuel injectors on this unit so I can ohm out the injector circuits? The unit is completely installed and the harness is hidden behind the engine so I would like to know if there is a problem with the wiring before I rip it all out.
Thanks, Ron
Quote from Deleted user on May 16, 2019, 11:55 pmMove injectors around. See if it follows or stays in same place. Should be able to look down the throttle bodies to see which injector it is.
Move injectors around. See if it follows or stays in same place. Should be able to look down the throttle bodies to see which injector it is.
Quote from Diceman on May 17, 2019, 2:24 pmAustin, Thanks for your reply and suggestions. I have already swapped the injectors and it always comes back to #4 which tells me it is a problem with the circuit. As for looking down the throttle bores I am not using Fitech throttle bodies. On the ones I have the injectors are mounted below the throttle blades and are not visible from the top. I just ordered an electronic stethoscope so hopefully I will be able to tell which one is not firing with it. If not I will have to start dismantling the harness so I can trace the wires back to the ECU. Thanks again for your reply.
Ron
Austin, Thanks for your reply and suggestions. I have already swapped the injectors and it always comes back to #4 which tells me it is a problem with the circuit. As for looking down the throttle bores I am not using Fitech throttle bodies. On the ones I have the injectors are mounted below the throttle blades and are not visible from the top. I just ordered an electronic stethoscope so hopefully I will be able to tell which one is not firing with it. If not I will have to start dismantling the harness so I can trace the wires back to the ECU. Thanks again for your reply.
Ron
