have just had my 1999 DISCO II 4.0 engine swapped out for a 4.6L from a '03 disco II. I had the 4.6 engine installed with the wiring harness that cam with it and also the 4.6 ECM that also cam out of the same vehicle as the 4.6 engine. However here is the issue.
I took the vehicle to dealership and they said that the following would have to happen:
1. I would need to have the 4.6 ecm re-programmed so that it would look for the secondary air intake stuff that all newere 4.6 engines have (I took the intake off and plugged the four holes because I did not have all the other secondary air stuff). This 4.6 ECM is looking for that stuff and can't find it so the check engine light will always be on.
2. The wiring harness from the 4.0 would need to be put on the 4.6 because even thought thee ends are identical, the wires are spliced differently along the lines. So even if I put the 4.0 ecm back in the vehicle (which the car runs fine with in, but without the gains that the 4.6 ecm would give) I would still get error codes (evap codes) because the wires are coming from different sources than what the ECM is looking for all related back to the non-existing secondary air intake stuff.
3. He/the dealearship cannot re-program the 4.6 ECM to not look for the secondary air intake stuff and he doesn't know where I can get that done.
Does all of this sound correct? Do I really need to switch out the wiring harnesses or does anyone know of the splices that I can just change? Where can I get the 4.6 ECM reprogrammed so it won;t look for the non-existant secondary air stuff.
I took the vehicle to dealership and they said that the following would have to happen:
1. I would need to have the 4.6 ecm re-programmed so that it would look for the secondary air intake stuff that all newere 4.6 engines have (I took the intake off and plugged the four holes because I did not have all the other secondary air stuff). This 4.6 ECM is looking for that stuff and can't find it so the check engine light will always be on.
2. The wiring harness from the 4.0 would need to be put on the 4.6 because even thought thee ends are identical, the wires are spliced differently along the lines. So even if I put the 4.0 ecm back in the vehicle (which the car runs fine with in, but without the gains that the 4.6 ecm would give) I would still get error codes (evap codes) because the wires are coming from different sources than what the ECM is looking for all related back to the non-existing secondary air intake stuff.
3. He/the dealearship cannot re-program the 4.6 ECM to not look for the secondary air intake stuff and he doesn't know where I can get that done.
Does all of this sound correct? Do I really need to switch out the wiring harnesses or does anyone know of the splices that I can just change? Where can I get the 4.6 ECM reprogrammed so it won;t look for the non-existant secondary air stuff.
