Ka24e misfire with odd symptoms

[DBradford95]

I'm new to this forum and new to Nissans as well. My car is a 1991 Stanza but there are no forums dedicated to the poor thing. So, when I go out to start my car cold it will always misfire. It isn't a spark issue because all ignition parts are new and I've verified each plug gets its juice. Once warmed up it will occasionally run on all 4 and it's usually after I've shut it off and started it up warm. Never runs on all 4 for longer than 30-45 seconds. I thought the problem cylinder was #2 because removing it's plug wire didn't phase the engine at idle. However, just recently I went to check the #2 injector to see if the computer's injector driver was doing its job. Pulled the connector and the misfiring engine stumbled. Didn't continue with the test because the engine would have probably cracked a mount it was shaking so bad. Maybe I have a f***** up injector harness? All input is appreciated