bschelle Posted August 4, 2019 Report Share Posted August 4, 2019 My 07 DTS misfires when it just gets to operating temp and after about 5 miles it smooths out and doesn't do it again for the rest of the day.I replaced the #2 coil but it still does it. If I let it warm up for about 15 minutes it doesn't do it. Any suggestions? P0302 indicates that cylinder number 2 is experiencing misfires. When the code P0352 is set in the Powertrain Computer, it means that the Powertrain Computer or PCM is not seeing the proper electrical signals from the ignition coil(s) during normal operation. Quote Link to comment Share on other sites More sharing options...
My 07 DTS misfires when it just gets to operating temp and after about 5 miles it smooths out and doesn't do it again for the rest of the day.I replaced the #2 coil but it still does it. If I let it warm up for about 15 minutes it doesn't do it. Any suggestions? P0302 indicates that cylinder number 2 is experiencing misfires. When the code P0352 is set in the Powertrain Computer, it means that the Powertrain Computer or PCM is not seeing the proper electrical signals from the ignition coil(s) during normal operation.
Logan Posted August 5, 2019 Report Share Posted August 5, 2019 Sounds like you know what the codes are etc. Curious.....Which cylinder do you think #2 is? Manual has you use Tech 2 misfire graph to verify. Manual has you move known good coil to replace....if problem still persists you replace the ECM. BodybyFisher 1 Quote Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
bschelle Posted August 6, 2019 Author Report Share Posted August 6, 2019 Front right radiator side? Quote Link to comment Share on other sites More sharing options...
rockfangd Posted August 7, 2019 Report Share Posted August 7, 2019 So just to be sure here Does it misfire from a cold start? Or run smooth almost up to operating temp, then run like crap until 5 minutes after OT? If it is the first one I ask if you have to add coolant. If it is the second one I suggest looking at the ECT sensor Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
bschelle Posted August 8, 2019 Author Report Share Posted August 8, 2019 SECOND ONE IS HOW IT ACTS! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.