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5.0 Ho Swapped Comet Lean Backfire Issue

  • Thread starter Thread starter jas280z
  • Start date Start date Aug 18, 2017
  • Tags Tags
    backfire lean o2 sensors
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jas280z

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Aug 18, 2017
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Aug 21, 2017
#21
  • Aug 21, 2017
  • #21
There were a few times right after getting the car that I could not get the Innova tool to get the computer into diagnostic mode. My buddy's Snap On diagnostic tool also could not get the car into a KOER test.

That was intermittent though. It has successfully run KOEO, KOER, and cylinder balance tests with the current computer. I haven't had that issue in the past week or so.

I suppose if it is an intermittent issue, it isn't likely an O2 harness/computer mismatch issue.
 

General karthief

wonder how much it would cost to ship you a pair
5 Year Member
Aug 25, 2016
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polk county florida
Aug 21, 2017
#22
  • Aug 21, 2017
  • #22
An issue that comes up at times are computer grounds, is this using a stock 5.0 harness?
If so check to see if the grounds are duplicated to a fox engine compartment.
 
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jas280z

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Aug 18, 2017
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Aug 21, 2017
#23
  • Aug 21, 2017
  • #23
I believe it is a stock 5.0 harness. I will check to ensure all grounds are okay.
 
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