Hyundai 15L-7:
hyudai hot start back firing

I have 2 Hyundai's that back fire real bad.enough to blow air cleaner cap off when turning engine over.although I have been told one of them has back fired while traveling.i contacted dealer in Illinois he told me units could have bad wiring harnesses.
  • Posted 9 Jun 2014 02:28
  • Discussion started by keith_m
  • Texas, United States
Showing items 1 - 6 of 6 results.
I have to say, i have been chasing near the same issue on an 18L. Thanks to the replys i found my culprit. Bad wires on the cam sensor. Gave 1 a little tug and came right in half. Can someone email me the mil code extraction procedure for hyundai, and maybe the code list? Please, would be a huge help in the future.
Again thanks, this is the second time this discussion group has unknowingly has come thru.
[email address removed]
  • Posted 13 Jun 2018 13:57
  • Reply by Shadetree5080
  • Nevada, United States
it was a bad connection at the camshaft sensor. just wanted to let you know. thanks for your help
  • Posted 27 Jun 2014 12:53
  • Reply by keith_m
  • Texas, United States
racinjunkie can you contact me @[email address removed]
  • Posted 25 Jun 2014 09:54
  • Reply by keith_m
  • Texas, United States
Ok I will check those connections out.have ypu had problems with some of these in your area? To be honest this is the only customer we have that has hyundai's.I just got the correct pass word for the software today. Gonna troubleshoot this unit after we get a new diaphragm for the back fired so hard last Friday that it blew a hole in it.i have also been told to watch out for a stick g valve but I'm sure that it would back fire while the unit is in motion if that we the case. Also have been told to Inspect the negative wires in the control harness.
  • Posted 24 Jun 2014 06:42
  • Reply by keith_m
  • Texas, United States
Broken wires at cam or crank sensors,bad connection at processor...
  • Posted 24 Jun 2014 03:03
  • Reply by racinjunkii
  • Texas, United States
I'm not familiar with your units- what make drive train is installed? I know Toyota electronic ignitions can show they're bad by severely retarding the ignition timing while cranking- this may be the case- just a thought.
  • Posted 9 Jun 2014 22:30
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
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