check engine light on
#1
check engine light on
so i have a 2008 gt500 with 42k miles and all of the sudden my check engine light turned on after not using the car for 4 days. the only thing i have ever done to the car is a steed cai and a tune but that was 6 months ago. the check engine light just turned on today. how do i start to diagnose this problem?
#2
you need to have diagnostic trouble codes (DTCs) read to know where to start looking. The "Check Engine" light simply means there was a fault in the engine management system that could cause emissions to rise above what the car was certified to. It could be as simple as a loose/leaky gas cap (Which would put the check engine light on as an evaporative emissions failure) or something much more serious.
a lot of faults that put the check engine light on aren't too serious and don't cause driveability problems. a flashing check engine light is way more serious; it means there's a repeated misfire detected and you should stop driving the car unless you're ok with your catalytic converters melting down.
and since you have a CAI and a tune, you should put the car back to stock first and see if the check engine light comes on again after driving it for a while.
a lot of faults that put the check engine light on aren't too serious and don't cause driveability problems. a flashing check engine light is way more serious; it means there's a repeated misfire detected and you should stop driving the car unless you're ok with your catalytic converters melting down.
and since you have a CAI and a tune, you should put the car back to stock first and see if the check engine light comes on again after driving it for a while.
#3
you need to have diagnostic trouble codes (DTCs) read to know where to start looking. The "Check Engine" light simply means there was a fault in the engine management system that could cause emissions to rise above what the car was certified to. It could be as simple as a loose/leaky gas cap (Which would put the check engine light on as an evaporative emissions failure) or something much more serious.
a lot of faults that put the check engine light on aren't too serious and don't cause driveability problems. a flashing check engine light is way more serious; it means there's a repeated misfire detected and you should stop driving the car unless you're ok with your catalytic converters melting down.
and since you have a CAI and a tune, you should put the car back to stock first and see if the check engine light comes on again after driving it for a while.
a lot of faults that put the check engine light on aren't too serious and don't cause driveability problems. a flashing check engine light is way more serious; it means there's a repeated misfire detected and you should stop driving the car unless you're ok with your catalytic converters melting down.
and since you have a CAI and a tune, you should put the car back to stock first and see if the check engine light comes on again after driving it for a while.
#5
it doesn't matter. if you've monkeyed with the code in your PCM and the CEL comes on, you put it back to stock and see if it reoccurs.
#7
Lean is not good. Is the tune you have specifically for the Steeda intake? If not, I would return the car to stock until you can get a tune for that intake. If it is for the intake, then I would call whoever sold you the tune and talk to them. Lean, especially on a forced induction motor is a recipe for quick disaster.
#8
Lean is not good. Is the tune you have specifically for the Steeda intake? If not, I would return the car to stock until you can get a tune for that intake. If it is for the intake, then I would call whoever sold you the tune and talk to them. Lean, especially on a forced induction motor is a recipe for quick disaster.
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