hey wats up ill try to explain this as good as i can..... the car is a 90 civic sedan with b18b1 obd1 dizzy obd1 ecu and obd1 injectors.... the car starts up fine then couple seconds later check engine light comes on.... dont know how to check it cuz it has a jumper.... the car is being held back from its power..... i am running straight pipe to a es tunning muffler...on stock header and stock intake box and arm...... u can feel it being held back.... IT ALSO HAS AFTERMARKET DIZZY.... I HAD A 4DR BEFORE DO THE SAME THING AND CODE IT WAS TDC SENSOR...... BUT I CANT FIGURE IT OUT..... ANY HELP WOULD HELP THANKS

 

ttt

 

if car is obd1 check the code like u would any obd1 honda. jump the service connector under pass dash.

 

the car is og obd0 ecu is on a obd 0 to obd 1 jumper harness with obd 1 injectors and obd 1 dizzy.....