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Switched ECU’a now RB25DETNEO won’t start

BroknRBJoshy
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BroknRBJoshy Newbie

BroknRBJoshy

Posted
Posted

Yo guys I need advice 

I just got the correct ecu for my car (25DETNEO) and now it won’t roll over, I tested my old ECU (25DENEO) and it’s doing the same thing would you have any idea what it could be? I think I may have bumped the wiring when I was switching over ECUs not to sure

 

i was running the DE ecu for a little bit as I didn’t Realize it was DE and that was the reason I was running really rich and now I’ve got the correct ECU and it just makes the cranking sound and fuel pump primes fine but not rolling over 

GTSBoy Grand Master

GTSBoy

Posted
Posted

Let us assume that "roll over" means "actually fire and idle", and not "just rotate on the starter".

In which case, if you think you bumped something, then yes, examine the relays next to the ECU, because one of them is for the ignition (coils) and will happily let you crank but not fire if it is not working.

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