93,000 i had to replace motor headgasket and severe overheat. All the motors on the eastcoast had high miles found motor in California with secondary air injection which mine does not have installed motor and plugged the ports on exhaust manifolds motor started did not run right took it for a spin for about 20 minutes fresh gas and it ran alittle better got to a light she stalled and that's it. got it running and its pulling 14 codes some i know are ok the guy said that the California motor might have different timing and my computer is not compatible.Can somebody help??

 

Your computer is fine for that engine. What codes did you find? Clear them and see what fresh codes are there and give us the code numbers.

 

Did you re-set the adaptive values in the engine ECU? You need a faultmate, t4, autologic to do this.

Matt