i have a d15z6 engine with d16y8 rockers and cam, just plugged in a p2p ecu, fuel pump primes properly, no flashing key on the dash but when i turn the key, the starter turns but the engine doesn't start, im confused?? i had an obd2b p2p ecu before which i converted myself to obd2a to fit my wiring and the car started but had o2 sensor codes because i have a 1 wire o2 sensor. this ecu is obd2a and has the same code 41 but doesn't start any help guys?

 

i asked the guy i got the ECU from, turns out the p2p has an immobiliser so i then went ahead and disregarded it, working fine other than the code 41 o2 sensor which i will try and convert in the next couple of weeks when i get time.