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2000 Volvo V70XC engine swap Topic is solved

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
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Richard99
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2000 Volvo V70XC engine swap

Post by Richard99 » Wed Jan 29, 2020 11:49 am

Hi,

I'm wondering if when doing an engine swap on a 2000 Volvo V70XC with another 2000 V70XC it is necessary to transfer the ECU from the donor engine?
Eric

1998 Volvo V70
2000 Volvo V70XC

scot850
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Re: 2000 Volvo V70XC engine swap

Post by scot850 » Wed Jan 29, 2020 7:50 pm

I am trying to think why would you need to change the ECU. I can't think of a reason to as there is nothing in the engine that is unique. The only things are linked to the ignition switch and the ignition keys and alarm system.

The ETM should also be ok.

Any on want to add to this or tell me I am full of crap? I am happy to stand corrected.

Neil.
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abscate
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Re: 2000 Volvo V70XC engine swap

Post by abscate » Wed Jan 29, 2020 7:53 pm

There is a thread here on someone who documented what modules are VIN specific, I recall that the list was

ECM
CEM
DIM

but that information is deemed 80% reliable
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Re: 2000 Volvo V70XC engine swap  Topic is solved

Post by RickHaleParker » Thu Jan 30, 2020 12:29 am

Richard99 wrote:
Wed Jan 29, 2020 11:49 am
Hi,

I'm wondering if when doing an engine swap on a 2000 Volvo V70XC with another 2000 V70XC it is necessary to transfer the ECU from the donor engine?
It is not necessary to transfer any electronics between the two cars.
If you can avoid transferring any software driven electronics between the two car, the swap is more likely to go without a hitch.
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