i just got my d15b vtec swap all done in my '89 crx dx.

when i went to start the car it just cranks and cranks and cranks.

im running a p28 ecu, rywire ecu jumper harness with vtec sub harness, and a nigaphan dpfi-mpfi engine harness

the only code im throwing is a code 41 primary oxygen sensor heater, and im guessing its only because i dont have my o2 sensor hooked up.

does anyone have any suggestions?

 

tranny ground, valve cover ground, thermostat ground. sand em, try again. gl

 

check for spark and fuel ........and i just did a swap in my dpfi 91 hatch and i had to switch a couple of wires at the ecu harnes on the car side ...did you have to ??????

 

ok got the car to fire up!

plugged the o2 sensor in so no more code 41

only code its throwing now is a 14 cause my iacv is broken.

but thanks guys for the input... Does anyone happen to know what kinda radiator i can run in my crx turns out mines cracked pretty bad

 

should be able to use a stock 88 - 91 ef (civic, or crx rad), dont do da (integra) because they use b series hoses