what does the computer check for when the smog tech connects the computer to my car?
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Does it match the motor to the VIN or just checks for working sensors?? Reason I ask is because I was told by a performance shop that If I was to swap any 5.7L LSx into my car that the tech won't know the difference and all the computer checks for on the OBD is working sensors.
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Does it match the motor to the VIN or just checks for working sensors?? Reason I ask is because I was told by a performance shop that If I was to swap any 5.7L LSx into my car that the tech won't know the difference and all the computer checks for on the OBD is working sensors.
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The OBDII check is a functional check that scans for any codes and readiness status of the monitors. The Smog machine won't know if a different engine has been swapped but the tech will do a visual inspection of all emission components so he will know if there is a different type of engine in there, for example an LT1 to an LS1... or he SHOULD know... otherwise he should find a new job. Just my .02 And btw I'm a license Smog Tech so that's not what I heard from a friend of a friend... that's what I know for a fact. Not to come off as an A**hole in any way... just stating facts.
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Starting in 1999, the PCM's are different as the Pins in wiring harness are not the same as in a 1998. Contact Doc at www.efialchemy.com for more info.