Engine swap compatibility concern

volvo diyer · Post by **volvo diyer** » 10 Dec 2015, 19:11

How can I make a 2002 v70 engine (vin code 61) work in a 2004 v70 car (vin code 64)? Pretty straightforward and am just looking for which issues there will be and how/if there is a workaround. Thanks

volvo diyer · Post by **volvo diyer** » 11 Dec 2015, 11:45

Follow up question: Does a possible workaround involve wiping my 2004 ECM clean, then downloading the 2002 settings?

Post by **abscate** » 12 Dec 2015, 06:04

You will certainly have to do the ECM flash as the 64 car has hardware the 61 car does not.

And don't expect to be able to pass smog with a 61... Instant failure for missing equipment.