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Error codes

Everything on the Volvo S80. Sometimes called an "executive car", the S80 was Volvo's top-of-the-line passenger car. P2 platform.
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MNM
Posts: 45
Joined: 2 December 2010
Year and Model: S80,2000
Location: Ghana

Error codes

Post by MNM »

Hello, I had to replace my steering rack so engine was moved, having sorted all and replaced engine I have a check engine light with the following codes

ECM 4000
ECM 4010
ECM644A

Any ideas?

537playing
Posts: 261
Joined: 15 June 2007
Year and Model: 2005 S60
Location: New York
Has thanked: 1 time
Been thanked: 5 times

Post by 537playing »

ECM-4000 Canister purge (CP) valve. Signal missing
The same for ECM4010

Sounds like you may have a connection not plugged in. Double check

ECM-644A Camshaft position exhaust. Signal too high . Any one play with the timing belt lately?

MNM
Posts: 45
Joined: 2 December 2010
Year and Model: S80,2000
Location: Ghana

Post by MNM »

Hello

The timing belt was not touched at all

MNM
Posts: 45
Joined: 2 December 2010
Year and Model: S80,2000
Location: Ghana

Post by MNM »

I will double check the connections for the evap system

dcarlson12
Posts: 514
Joined: 2 July 2008
Year and Model: 1997 850 T5
Location: Surrey, BC, Canada
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Post by dcarlson12 »

My ECM-644A turned out to be a faulty VVT reset valve. Initially, I just cleaned the connector and that at first it seemed to correct things. But eventually I just bit the bullet and installed a new VVT reset valve. The code has not come back. I did notice that the new gasket supplied with the new valve had a small screen added to one of the ports. Perhaps 'they' discovered that debris gets into the valve causing its failure...??? Bought mine at autopartsway.ca. It came with a new gasket and a set of wires which must be installed into the new connector, which they also included, which must be used in place of the original. It is a finicky little connector and it is not totally obvious how the wire ends with little (brass?) connectors have to be pushed into and locked into the connector. But all is well so far. Maybe you will be lucky and can use some contact cleaner on the old connector.
I did not notice any performance problems even when the CEL was light by the 644A code but installed the new valve because air care will not pass if the CEL is on or might come on during the air care test.

MNM
Posts: 45
Joined: 2 December 2010
Year and Model: S80,2000
Location: Ghana

Post by MNM »

Hello all, I finally solved the problem with the 6440 error code, it turned out a fuse was blown and there was no power to the CVVT Solonoid. Replaced fuse and it was all ok.

Thanks again

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