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It isn't going to work! You need the ECM for the engine, and it is likely to open up a whole can of worms for the other existing sensors and modules that are trying to interact with the new ECM.
You don't really need to swap the engine out. The coil pack is simply the electronics that controls when the spark plug fires. You could change the wiring set up to use a multi coil pack system but this could be very complicated and very expensive as you might need a specialist to do it for you.
You are probably better off converting the new engine to run on a single coil pack system. If you have swapped the old engine for another engine that is the SAME you might be able to transfer the parts off the old engine onto the newer one.
You would be safest asking a good mechanic near you if this is possible.
pinging is from spontaneous combustion ( detonation) and is from incorrect air /fuel ration and ignition timing. Run fault codes and check knock sensor and MAF/MAP/VAF sensors . Left un- checked it will melt holes in the pistons.
the computer may need to be re-flashed by a dealer, if there is one digit that is off from your original engine block(which may depict a different type of sensor or two) things get added to these newer engines to help control emissions, hope this helps....bring it in to a reputable dealer, tell them what you did and they will tell you the same thing
Sounds to me like you opened a can of worms that you are not equipped/qualified to deal with. To begin with, doing an engine change the way you did it is illegal. It is OK to put the newer motor in the older vehicle, but it is against federal law to put the older engine into the newer vehicle. REFERENCE: EPA ENGINE SWAP FACT SHEET
With all that said, if you want to do a swap like that, it is necessary to also swap wiring harnesses and computer modules (among several other components) if you expect it to work.
Has anyone made this work yet? I have the same problem 2002 jeep 3.7 and just installed a 04 motor. Timing is off. Some one had a good idea of mounting the crank gear to the out side of the harmonic ballancer and mounting the sensor with a bracket. What about the cam gear on the left side. Does the timing cahain have to come off to remove it? Or has any one swaped the wiring harnest, and computer. Please email me back. [email protected] Thanks for your help.
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