Engine Management Light on and Lacking Power

[Lion Heart]

Hi guys

Need some help for my Volvo V50 2008 2.0d.

Basically, last week I changed the starter motor as the old one was dead. Once fitted started a treat :-)

Then my partner took the car shopping and after putting in fuel the engine management light came on within 30 seconds of leaving the petrol station. So I thought initially either bad fuel, or otherwise the car has now done approx 5 turn-off/turn on cycles and so it came on because of that.

Not sure if these need to see the fault several times before the warning would show, i.e. 5 start/stop cycles? I know some other makes have that kind of set up.

So, scanned it with VIDA as thought very strange...

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ECM-003A Turbo Charger Boost Control Exceeded LEARNING limit

ECM-2263

ECM C140 Central electronic module CEM signal missing

ECM-DE29

ECM 246B

EPS 0071

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I thought maybe these were due to having to disconnect the battery for the starter motor change, so I cleared them, car started as normal and engine light did not come back on.

Next, my partner takes the car away for the weekend. At a roundabout the car started smoking REALLY badly from the exhaust, after two roundabouts the warning came one for the self-cleaning process, and after two more roundabouts the smoke had stopped completely, and the self-clean process light went off.

A couple of days later the engine management light has come back on, and she is saying that it definitely lacking power.

Now, the car has been SPOT ON before I changed the starter motor. Obviously the starter motor has nothing to do with the running of the engine, it just starts it. BUT it's a tight fit getting the bugger out (I did it from above) and so you have to wrestle it past the front air hose and electrical connections etc.

I wondering if maybe I knocked/loosened something accidentially?

It could be cooincidence of course, but seems unlikely it would go from absolutely spot-on for two years ownership to having these issues all of a sudden at the exact same time the starter motor is replaced.

Any thoughts and idea's most welcome

[Lion Heart]

Anyone???

[Yobbo]

Check for Vac hoses near the throttle body, also the vacuum control valves - one to the left of the battery and one under the alternator, I recently cleaned mine, though the one under the alternator rathger got blasted with carb cleaner and brake cleaner - there is a little sponge inside that can get gummed up. Might as well get them a refresh while you're checking for loose hoses etc.

But I feel like I'm leading you astray here - white/blue smoke could be turbo related or your DPF could be goosed/needs an Eolys top up if it has the tank.

Really annoying that the problems coincide with the replacement of the starter motor!!

[Lion Heart]

Thanks for the input :-)

The smoke was proper black smoke apparently. Which would make sense with the burn-off cycle as that light came on, but apparently LOADS of black smoke, for a good couple of minutes.

Then smoke stopped as the burn-off (soot filter) cycle light went out.

And no more smoke since then (driven 3+ hours).

Not sure if that much smoke is 'normal' for the soot filter burn off cycle???

[Lion Heart]

A quick update on this for anyone who finds it via a Google search etc in the future.

Now fixed. Basically I had either removed and forgot to reinstall, or knocked off during starter motor change, two breather pipes that attach to the engine to the left of the starter motor:



Once I found this out and reconnected them correctly the car came back to life as normal - yey!