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Discussion Starter · #1 ·
I recently swapped an obd1 d15b into my car which had an obd-2 motor. I got the wire-harness adapter and an obd-1 ecu. Problem is, the car will not idle it just surges from like 800-2500 rpm. I kept all the original sensors, throttle body, etc on the motor. I didnt know if it makes a difference or not but I can't get it to idle correctly.
 

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R2.....Zap Balls
94 Ex coupe
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5,186 Posts

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Discussion Starter · #4 ·
Not sure about the ecu codes yet cause I don't have the bulb in for the check engine light, but does it make a difference that I left my original throttle body and sensors from an obd-2 motor on this obd-1 engine?
 
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