Can I replace Mazda 2.3L with 2.0L engine without touching the wire harness?
30

Asked by Todor78 Jul 30, 2014 at 03:35 AM about the 2003 Mazda MAZDA6 4 Dr i Sedan

Question type: Car Customization

I own a 2003 2.3L European JMZGG 166HP Hatchback Mazda 6. My engine's nikasil coating is damaged after putting chrome plated piston rings in 1000 miles. I'm willing to avoid this problematic engine with its balancing shaft preventing from proper oiling the middle cylinders. I would like to put a regular 2.0 liter engine as they seem to last longer and are affordable. The gearboxes are the same. I know I have to swap both the engine and the computers, but what about the wire harness. Will it fit? My engine has vvt and uses spark plugs. The new 2.0L mazda engines (After 2006 including I think) use ignition coil and have vvt. Can somebody tell me if I can swap an engine from 2.0 with ECU, which year this car should be (pre or after 2006) in order to keep my stock wire harness.

The engine looks like this:
https://dl.dropboxusercontent.com/u/78799909/2300cc.jpg

4 Answers
44,825

jamnblues answered 9 years ago

sounds like a mess to me- you can expect problems- how can someone love a 2003 Mazda enough to go through all this? I don't get it-

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Todor78 answered 9 years ago

1. The car has an Austrian external tuning 2. Almost every part except for the engine was checked and replaced by me 3. An anti-corrosion treatment was applied on every part from below 4. The car "used to" drive very comfortably 5. Bose premium 7 channel Sound 6. Added bluetooth&mic&mp3 playing system 7. Many other things which, will not convince you if the above didn't. And last but not least - once I start something I try to make it to the end. Regards

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GuruT52XQ answered 5 years ago

I got a Mazda 6 2007 2.3l 4 cylinder sports addition manual engine everything works got one whole burnt wire and got to replace it for it to crank and right now it wont turn over and the fuel injectors kick in and it just wont krank

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