I ran my codes today after the check engine light came on and it gave me a P1290-cylinder head temperature (cht) sensor ckt low input. What does this mean?
Is a p1290 bad?
- Thread starter J.Cagle
- Start date
SpartaPerformance
10 Year Member
It can mean:
• Grounded circuit in CHT harness
• Damaged CHT sensor
• Incorrect harness connection
Is that the only code because P0117 can also come up
• Grounded circuit in CHT harness
• Damaged CHT sensor
• Incorrect harness connection
Is that the only code because P0117 can also come up
Thats the only thing that came up. And it came up after I installed my cai and started it with the stock tune installed. But, I had drove the car a few miles before it ever came on. (my intake requires a tune, but the tune doesn't work right so I had to go back to stock...long story) Would the intake cause this kind of code? What is cht?
SpartaPerformance
10 Year Member
I would say yes, anytime you have an aftermarket component like a CAI that that requires a tune, without a proper tune it will turn on a CEL
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