VZ V6 no ignition or fuel pump

[nes138]

It says "to program a new PCM, go to service programming on the tech2, go into program ECU, if the PCM will not program, renew the PCM.The PCM must be security linked to the PIM and BCM".

What workshop manuals are you using Brett?

 

[Boonz]

okay still confused How does the cars computers know its a different motor?? can some one explain..

the ECM doesnt know if the motor has been changed, from what i can gather is that the ECM off of the donor motor was left on the engine, plugged in and tried to start which would set the immobilizer function to not let engine start.
which again is why i said why not just use the original ECM ? wont have a problem then

 

[loopie]

from what little I understand engine control module, monitors and adjusts set engine parameters,EG from o2 scencors. oil temp. oil pressure, engine knock scensers, ignition . SO how can it know if its not the original engine... Or it looks like the ecm is also linked in with immobalizer which explain the NO start. I always thought that was body control modules job , My way off thinking and im no computer nerd is BCM says too ecm start car car starts then ecm runs car engine,,, OR im just lost as no one has explained how it works... Seems as no one knows for sure

 

[Brett_jjj]

What workshop manuals are you using Brett?

A max ellery VT to VZ V6/V8 and a gregorys VT to VZ V6/V8. The tech 2 info I posted before was in the max ellery..

 

[jwaye2]

the ECM doesnt know if the motor has been changed, from what i can gather is that the ECM off of the donor motor was left on the engine, plugged in and tried to start which would set the immobilizer function to not let engine start.
which again is why i said why not just use the original ECM ? wont have a problem then

The first thing i did once the motor was in was plug the original ecm into it. As i brought the vehicle with the heads removes i didnt know 100% if the ecm evan works so i then tried it with my new ecm and made no difference.