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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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Engine Management Light on and Lacking PowerViews : 1254 Replies : 4Users Viewing This Thread : |
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Feb 5th, 2018, 16:05 | #1 |
Junior Member
Last Online: Jul 2nd, 2020 18:42
Join Date: Jan 2013
Location: Worcester
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Engine Management Light on and Lacking Power
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... --- 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 --- 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 |
Feb 6th, 2018, 08:08 | #2 |
Junior Member
Last Online: Jul 2nd, 2020 18:42
Join Date: Jan 2013
Location: Worcester
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Anyone???
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Feb 6th, 2018, 11:22 | #3 |
Dave
Last Online: Sep 7th, 2023 11:33
Join Date: Apr 2016
Location: East Yorkshire
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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!!
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V50 D5 'Thor' |
Feb 6th, 2018, 11:43 | #4 |
Junior Member
Last Online: Jul 2nd, 2020 18:42
Join Date: Jan 2013
Location: Worcester
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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??? |
Feb 23rd, 2018, 13:56 | #5 |
Junior Member
Last Online: Jul 2nd, 2020 18:42
Join Date: Jan 2013
Location: Worcester
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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! |
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