2007 ve 3.6 alloy tech pre cat oxygen sensor wires

[Danwell]

Thank you for the reply’s, my car is a VE which must have been made before the changes in 2007 however the engine that I’ve put in must be a ve from after the changes in that year.

If I put the different sensors that suit the new motor into the cars existing cats therefor also changing from having been five wire plugs to using four wire plugs, is that going to mess with the ecu?

Or should I also get the ecu from the donor car that I’ve taken the engine from?

 

[Fu Manchu]

You need to use your old wiring harness.

 

[Danwell]

You need to use your old wiring harness.

Okay so changing the sensors won’t work?

 

[Fu Manchu]

your ECM is expecting a particular data set. Don’t mess with it. That’s what changing sensor types will do.

Change the ECM and then you have to factor a no start until it is reflashed with your VIN. However, the body harness may have different pin outs and not easily integrate.

Keep things simple. Use your old engine harness. Avoid rabbit holes.

 

[Danwell]

your ECM is expecting a particular data set. Don’t mess with it. That’s what changing sensor types will do.

Change the ECM and then you have to factor a no start until it is reflashed with your VIN. However, the body harness may have different pin outs and not easily integrate.

Keep things simple. Use your old engine harness. Avoid rabbit holes.

Will do, thank you