| Re: MF'r broke down....round two!!! |
Subject: Re: MF'r broke down....round two!!! by Matatk on 2011/6/17 3:05:19 Got it home and started working on it in the garage. First thing I checked was FP - spot on 3 bar. Second thing was I started going through the "engine cranks but will no start" diagnostic chart in the FSM. -no codes, tps is .54 Check for spark and it seems intermittent but strong and blue when it cracked. I have the spark tester set to 25000 volts, what the fsm says is necessary. Started going through the troubleshooting steps for no spark (since an intermittent is treated as no spark). -close to 12v at tach output, close to 12v at batt output. no rpms when cranking. disconnecting 4 wire est connector and giving power gives no rpm signal. Got to the point of testing the ignition control module to see if there was a voltage drop when applying test light to "P" terminal..there was none - aha...changed the ignition control module and then retested, drop in voltage as there was supposed to be. I buttoned everything back up...still no start. Damn it. I also replaced the ECM during testing since I saw that may be a cause and it only took 3 mins to do. Tomorrow is another day and I will have to go back and start retesting. I need to test the pickup coil when the engine is cranking and see what that looks like. After that I'll be pulling the dizzy base to check the drive gear. I'm hoping it's not that again. Updates will come. Matthew |
