No Power to injectors: resolved

ChiddieChiddie New Wagonist
in Engine & Drivetrain
I am trying to start my swap but I have no +12V power through the yellow black wires to the injectors. With the key in the "on"position I have power at both yellow/black at the ecu, power at 1 yel/bl at the main relay, and no power at either yel/bl at the wngine harness connection. It is strange that I have power at only 1 wire at the main relay but it had been replaced about a month ago and was fine pre-swap. Any suggestions would be appreciated.

Comments

  • stampernstampern Senior Wagonist
    What swap are you doing? Are you stock mpfi, or dpfi and are you converting to mpfi if you don't have it now?
  • ChiddieChiddie New Wagonist
    B20 swap and I had to DPFI to MPFI. I hooked up my yel/bl wires from the OBD1 injectors to the 2 yel/bl wires on the harness for the DPFI injectors. I don't have power at the harness that connects tothe engine harness which is strange.
  • ChiddieChiddie New Wagonist
    I'm running an OBD1 PR4 ECU if that helps any.
  • ChiddieChiddie New Wagonist
    This is resolved, the wiring on the B20 OBD2 dizzy is different than that of the CRV plug. When I wired the plug to the OBD0 harness I just color matched but this doesn't work as a blue wire on the dizzy turns to blue/black on the CRV connector and vice versa (example only). Therefore you have to color match to the B20 dizzy not the plug from a CRV. Doesn't make sense at all to me but it is the case. Now I just have a racing engine to figure out which I am assuming is a vacuum leak.
Sign In or Register to comment.

© Vanilla Keystone Theme 2025