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Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

16 Gmc terrain slt awd 3.6

  • aut0mat3d
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5 years 5 months ago #39233 by aut0mat3d
16 Gmc terrain slt awd 3.6 was created by aut0mat3d
Threw oxygen sensor codes low voltage all 4
replaced sparks
Tps and mass
Ran fine for 4 days, misfire thru intake fuel pressure ok ,
Is possible to have several bad ignition coils, did engine balance test no luck
Sparkplugs are fouled up

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5 years 5 months ago #39236 by Tutti57
Replied by Tutti57 on topic Re:16 Gmc terrain slt awd 3.6
It sounds like it's running lean, if all 02 sensors have low voltage and it's backfiring through the intake.

What are your STFT and LTFT at idle and being held at 2500rpm?

How did you test fuel pressure?




Nissan Technician

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5 years 5 months ago #39237 by aut0mat3d
Replied by aut0mat3d on topic Re:16 Gmc terrain slt awd 3.6
They move up and down, the only way that i check the fuel pressure is by using the live data on acron scanner

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