ecu test?

[rollinrps13]

is there a way I can test to see if my ecu is working? I tried to pull codes with the flashing LED..but it's not flashing or lighting up at all. It's a 89 s13 with a fresh swapped sr20. I'm not getting spark out of the coils and nit getting power to the fuel pump..any insight to the probs would be great..thanks

[stinky_180]

installing a known good working ecu is how you test if your ecu is bad

[rollinrps13]

shit thats what i thought jus checkin though..this sucks no one i kno has an extra one lol

[rollinrps13]

is there a way to check to see if the ecu is getting power?

[DriftVader]

get a multimeter. u can check to see how many ohms its getting.

[rollinrps13]

how many ohms should it test at and what pins do I test? Thanks for the help

[stinky_180]

if your checking for power, you'll be reading Voltage! Ohms is resistance! Since the car is powered by a 12volt system, you should be seeing 12 volts going to the ecu.

to the op, get a factory service manual.

[Bushido]

i got the same problem.

no voltage to the ecu. diagnostic led not lighting up. no spark no fuel.



i read in the fsm to check for continuity between the ecu and eccs relay.

anyone had this problem before?