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97 shouldn't need a VIN, but you're right about a lot of these companies not wanting to give out any info. The big difference between the sensors/injectors/etc. between OBDI and OBDII is the downstream O2 sensor. A trip to the local library for wiring diagrams will tell a greater story of any differences. The wiring and computers are certainly different, but there's no reason you can't make the 97 engine a 95, electrically.



the engine 97 in question come with a J TECH mopar computer,, hot wires told me to check the part number,make sure its for a 8 cylinder,,

ive read so much and got some of it crossed up,,,,there is way more development re working a 5.7 computer verses a magnum,,i cant remember what they can and cant do to re programming a magnum,,

but like u said the 97 needs to see wheel speed,,if using a auto computer,, does not if u use a manual computer,,

so i called a few of these computer rebuilders,, they wont program one to run unless i have a VIN,,, i did find a place that has several manual computers,,around 100 bucks,,but he needs a part number for whjat im not sure,,ide assume a manual shift 5.2 in 1997 is going to be rare,,

so yes if i could figure out how to convert it to the earlier wiring,,or maybe hot wires can,,but thats 820 bucks,,yikes,, im not a computer programer,, and dont fully know all whats going on with the engine computers,,,

mega squirt has astand alone unit,that must run with an 1980 era distributor from a lean burn

almost glad its my weekend to work,,lol my head is about to explode from trying to figure out whats going to work and what makes sense dollar wise,,,

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