ecu fried???

[onetime468]

cut my harness down for drag racing...changed to 32 bit.. now i have spark engine cranks fuel pump primes injectors only fire once upon ignition switch on....is there any way i can test the ecu... or could it be a cam sensor issue i did change cams head ect

 

[SoCal Blur]

I would start with verifying that you have the pin swaps correct on your 32bit upgrade. It's easy enough to get them confused. It just takes one pin to be wrong to have the symptoms you describe.

https://www.hayabusa.org/forum/main...it-ecu-32-bit-conversion-how.html#post2999070

 

[onetime468]

i went with the newer harness as well so pins are right.. when i did it i bought ecu harness rotor