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Two ecus wont power on

Brunoboy

Well-known member
Joined
Apr 25, 2008
Messages
2,880
Location
San Bruno,CA Home of SFO
I had both recapped and socketed and i put them in, no start no cel on ignition start up either, i tried them both in tre3zys car, same result, does anyone know which part of the board controls this?
 

stevep

Well-known member
Joined
Oct 23, 2004
Messages
417
Location
St. Charles, IL USA
I've posted the same basic test on this site too many times.
All that tells you is if the ECU runs or not. If you don't actually test to see if the normal turn on activity that I posted on Tuners is happening then you don't know if it's the circuit that turn on the MPI relay that's failing or something else.
 
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