NorthstarGT Posted November 12, 2005 Report Share Posted November 12, 2005 I just got the motor back together and running but I am getting P1350 and P1375 codes. The motor takes a little while to start but once it does it seems to be running ok but I have the constant service engine soon light on. I have checked to ICM connectors to make sure they were all seated and made sure the ground cable is on and even added a star washer to the ICM ground cable. I cleared the codes with a scan tool but the 1375 immediately reappears and the 1350 does so after several times of starting. The module worked perfect before I pulled the motor. Right before I pulled the motor due to bad headgasket I did change the plugs and plug wires and it ran fine with no codes. Anybody have any idea what may be causing this problem? I hate like hell to change the ICM in hopes that will fix the problem if I am not sure it is the problem. Link to comment Share on other sites More sharing options...
Scotty Posted November 12, 2005 Report Share Posted November 12, 2005 P1350 - Ignition Control System P1370 - IC 4X Reference Circuit Too Many Pulses Make sure the ignition wires are correctly routed and not touching any injector wires or any sensor wires. Link to comment Share on other sites More sharing options...
NorthstarGT Posted November 12, 2005 Author Report Share Posted November 12, 2005 P1350 - Ignition Control System P1370 - IC 4X Reference Circuit Too Many Pulses Make sure the ignition wires are correctly routed and not touching any injector wires or any sensor wires. Thanks, I'll check that out and post the results Link to comment Share on other sites More sharing options...
Scotty Posted November 12, 2005 Report Share Posted November 12, 2005 Here is more information, that should be helpful Link to comment Share on other sites More sharing options...
Scotty Posted November 12, 2005 Report Share Posted November 12, 2005 Page 2 of P1350, there are two more pages of diagnostics, if you would like them, I will email them to you, but it will have to be later, send me an email address, Mike Link to comment Share on other sites More sharing options...
Scotty Posted November 12, 2005 Report Share Posted November 12, 2005 I made a mistake above, I gave you the code for P1370, instead of P1375, sorry, here is the description of P1375 P1375 - IC 24X Reference Circuit High Voltage Here is the information in the manual for P1375: Link to comment Share on other sites More sharing options...
Scotty Posted November 13, 2005 Report Share Posted November 13, 2005 Looking at the above schematic for 1350, I would check the grounds at the IC and G102 first Link to comment Share on other sites More sharing options...
NorthstarGT Posted November 13, 2005 Author Report Share Posted November 13, 2005 Thank you so much Scotty ..I tried checking the wire routing and it was ok so tomorrow I will use the info you posted to diagnose the problem ..Thanks again !! Link to comment Share on other sites More sharing options...
NorthstarGT Posted November 13, 2005 Author Report Share Posted November 13, 2005 Well I got the problem fixed.It ended up being one of the crank sensors not being plugged in. I did plug it in but must have not been seated all the way. Must have pulled loose when I was tucking the main harness under the waterlog after installing the waterlog. Now it starts almost immediately instead of cranking for awhile first AND the tach now works Link to comment Share on other sites More sharing options...
Scotty Posted November 13, 2005 Report Share Posted November 13, 2005 Glad you figured it out Link to comment Share on other sites More sharing options...
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