DCAR

I have a 96 Hatch that had a D15B/Y8 minime in it. the motor was taking a dump on me so i got a known good Y7.

Only thing I changed from a 100% working Y7 is a complete Y8 intake manifoldi, Y8dizzy and Y8 harness. I moved the batter to the rear of the car but besides that i left everything else how it was.

The car will start but rough but once it gets started it idles at 800rpm w/o surging. At the hit of the throttle it hesitates and then revs normal, pulled out of the driveway, pull off and i lose a cylinder or two and nothing but hesitation. When I pull back in the car goes back to idling normal.

It through a code for TPS but it's reaeding .49v closed and 4.33 WOT. then through a code from MAP sensor so i swaped it out for the Y7 "known good sensor" and still has a hesitaion.

I have checked all wiring and rechecked with color codes, and still nothing.
Spark plugs are showing super rich but IDK from what.

PLEASE PLEASE ANYONE HAVE ANYHITNG ELSE TO ADD? I'M CHECKING ALL SENSORS THAT WOULD CAUSE THIS AND THEY ARE ALL GOOD. I'M LOST....

Thank you everyone,
Dwayne

DCAR

Could it be an ECU gone bad?

97_ek_coupe

Which ecu are you using?

DCAR

OBD2 Y8, Y8 harness