Hey guys i'm new to the land cruiser community and need some help. I've got a 1994 FJ80 with what I think is an electrical issue.
When its a cold motor and i start it up without any electrical load on it rev's just fine. As soon as i turn the head lights on bright, push the window buttons, and run the flashers all at the same time while its cold. It revs to 2k rpm with it to the floor and the cuts until it hits 1k rpm then revs back to 2k rpm. It continues to do this until its warmed up and then it does it constantly without any electrical load on it.
I've checked and jumper all the relays on the fuel side along with what's on the ecu side still the same. I checked and cleaned all the grounds that are related to the fuel, ecu and ignition system. No Change. I disconnected the battery while it was running and still the same. I set the throttle to 3k rpm and have shook down the main ecu harness with no change as well.
I did find the main ecu harness chaffed at the egr where the engine lift loop is. It was worn through the shielding on the ignition wiring for the signals from the distributor. No other wiring was worn through.
I'm starting to run out of ideas other than the ecu or trans ecu.
If anyone has any other ideas please feel free to let me know.
When its a cold motor and i start it up without any electrical load on it rev's just fine. As soon as i turn the head lights on bright, push the window buttons, and run the flashers all at the same time while its cold. It revs to 2k rpm with it to the floor and the cuts until it hits 1k rpm then revs back to 2k rpm. It continues to do this until its warmed up and then it does it constantly without any electrical load on it.
I've checked and jumper all the relays on the fuel side along with what's on the ecu side still the same. I checked and cleaned all the grounds that are related to the fuel, ecu and ignition system. No Change. I disconnected the battery while it was running and still the same. I set the throttle to 3k rpm and have shook down the main ecu harness with no change as well.
I did find the main ecu harness chaffed at the egr where the engine lift loop is. It was worn through the shielding on the ignition wiring for the signals from the distributor. No other wiring was worn through.
I'm starting to run out of ideas other than the ecu or trans ecu.
If anyone has any other ideas please feel free to let me know.
