need help with lt1 check engine light
08-01-2012, 07:48 PM
#1
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need help with lt1 check engine light i have a 94 camaro with the lt1 swap well this is the 1st time in 2 years the check engine light came on and when i put the diagnostic snap on tool on it and it says no communication. but what it is doing is about 20 seconds after its running the check engine light comes on and the fans kick on can anybody help me i've replaced the coolant temp switch, coolant sensor, map sensor, maf sensor, tps sensor idk what else to try i need help...
08-02-2012, 04:46 AM
#2
Stop throwing parts at the car and get the codes pulled. Find a scanner or dealer that is able to scan the car then go from there.
The cooling fans come on when an SES light is set, not the other way around. It's one way the PCM tries to protect the engine.
The cooling fans come on when an SES light is set, not the other way around. It's one way the PCM tries to protect the engine.
