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Old 08-07-2007, 12:42 AM   #1
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Ive been reading alot of these thread saying that there is a lot involved when swapping a Gen 2 M62 to a Gen 3 M62. Ok my questions is what does it involve,cause i have a gen 3 M62 that i have had for a while just to learn how to rebuild them but so far i have no touched i.
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Old 08-07-2007, 11:38 AM   #2
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You need:
SC, TB, one more SC base bolt (you'll have one that is too long for the new SC), MAF sensor, SC and TB gaskets. Scan tool and possibly a wideband O2 sensor, AFPR and fuel pressure guage or Air-Fuel Calibrator (AFC)

Difficulties you will have:
EGR tube-to-SC inlet joint will likely leak. Gaskets have been made from portions of EGR valve gaskets. CAR WILL RUN LEAN!!!!!!!!!!!!! The PCM won't properly translate the MAF signal. You'll need to scan or look at your new wideband O2 gauge then tune the fuel or MAF signal. So you know, AFC'* (particularly the one that ZZP sells) have reliability issues. I had 3 die then switched to an adjustable fuel pressure regulator.

Getting it done right requires the money spent on the other equipment to get the tune right. You'll also want everything else to be "up to date" to further help you get the tune right.

I've had mine on for 4-5 years now and still don't have it tuned perfectly.
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Old 08-07-2007, 11:41 AM   #3
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And it won't really be a car you can truly TRUST. I have to watch mine like a HAWK. One little change can run you into BOOM territory very quickly.

John and I are currently the only two Gen3 swapped cars on this Forum. Considering the long hours and money we've invested to make it happen, I wouldn't suggest it as a viable alternative for most people.
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Old 08-07-2007, 12:33 PM   #4
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wow that is a lot of work...but maybe sometime in the furture ill do it..Thanks for all the info and heads up. I just wish i had the money to do it that is pretty much the only thing that would be holding me back and the fact i would need to but anther car to drive while this one would be apart.Like i said one ill do it.

keith
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Old 08-07-2007, 03:34 PM   #5
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One of the deciding factors for me was that I had the other car to drive. Another thing that helped is that if I made it work, both cars would then be mechanically identical to each other.

Had it been my only car, I wouldn't have tried it.
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Old 08-08-2007, 10:45 AM   #6
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I think im just gonna save some extra money and then buy a spare car.Then probaly do the swap i thinkin next summer or winter if i have a garage at the time.
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