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If you're pre 1995 and have OBD-1 then they don't check the ecu. One thing that makes it difficult to pass is that aftermarket ecus don't work with the EGR valve. Supposedly you can change the tune of the car to pass smog.Sent from my iPhone using Tapatalk
If you're pre 1995 and have OBD-1 then they don't check the ecu. One thing that makes it difficult to pass is that aftermarket ecus don't work with the EGR valve. Supposedly you can change the tune of the car to pass smog.
Sent from my iPhone using Tapatalk
