Help needed. - Page 3

arcascomp · Feb 10th, 2022, 16:07

Sounds plausible - if you really think it's dud, could be worth trying a clean. BE REALLY CAREFUL doing that as they are so, so fragile, best not to rub or even touch the little wire at all, but remove and gently spray contact cleaner on it and let it dry off.

Only do this if you are confident it's fubar anyway, nowt to lose at that point. Would have expected a code to be thrown for a duff MAF though.

Reyne111 · Feb 10th, 2022, 16:12

Quote:

Originally Posted by arcascomp

Sounds plausible - if you really think it's dud, could be worth trying a clean. BE REALLY CAREFUL doing that as they are so, so fragile, best not to rub or even touch the little wire at all, but remove and gently spray contact cleaner on it and let it dry off.

Only do this if you are confident it's fubar anyway, nowt to lose at that point. Would have expected a code to be thrown for a duff MAF though.

It doesn't throw a code when it's disconnected, let alone if its a dud, hence why I disconnected it.

arcascomp · Feb 10th, 2022, 16:33

VIDA can also test the MAF to see if it's working or not, maybe someone down there knows a good Volvo indie that has VIDA and knows these engines - might save some coin playing swap the part.

Reyne111 · Mar 7th, 2022, 19:54

So, an update on all of this.

I have now also changed the MAF sensor and the swirl flaps (clearing out all the carbon rubbish as well.) no change, the engine runs a lot smoother, which is great, but still down on power.

I am also noticing a rattle. only under load, which has always been there but I just assumed it was the heat shield. When you rev the engine you can not create it, it is only under load. Floor it and you get a rattle but it sounds like an exhaust right in front of the driver, if that makes sense.

I don't really know where to turn next....

I am booking in at Horton Cars next month but if I can resolve before then that would be a bonus.

Feb 10th, 2022, 16:07	#21
arcascomp Junior Member Last Online: Mar 31st, 2024 06:53 Join Date: May 2017 Location: Edinburgh	Sounds plausible - if you really think it's dud, could be worth trying a clean. BE REALLY CAREFUL doing that as they are so, so fragile, best not to rub or even touch the little wire at all, but remove and gently spray contact cleaner on it and let it dry off. Only do this if you are confident it's fubar anyway, nowt to lose at that point. Would have expected a code to be thrown for a duff MAF though. __________________ 2007 XC70 D5 185 - last of the P2's 2016 V60 CC D4 2WD - was just 'too new'! 2006 XC90 D5 185 - Sold on 2002 V70 D5 163 - off to the car equivalent of the UHU factory for horses

Feb 10th, 2022, 16:33	#23
arcascomp Junior Member Last Online: Mar 31st, 2024 06:53 Join Date: May 2017 Location: Edinburgh	VIDA can also test the MAF to see if it's working or not, maybe someone down there knows a good Volvo indie that has VIDA and knows these engines - might save some coin playing swap the part. __________________ 2007 XC70 D5 185 - last of the P2's 2016 V60 CC D4 2WD - was just 'too new'! 2006 XC90 D5 185 - Sold on 2002 V70 D5 163 - off to the car equivalent of the UHU factory for horses

Mar 7th, 2022, 19:54	#24
Reyne111 New Member Last Online: Jul 21st, 2022 15:53 Join Date: Jan 2022 Location: Ryde	So, an update on all of this. I have now also changed the MAF sensor and the swirl flaps (clearing out all the carbon rubbish as well.) no change, the engine runs a lot smoother, which is great, but still down on power. I am also noticing a rattle. only under load, which has always been there but I just assumed it was the heat shield. When you rev the engine you can not create it, it is only under load. Floor it and you get a rattle but it sounds like an exhaust right in front of the driver, if that makes sense. I don't really know where to turn next.... I am booking in at Horton Cars next month but if I can resolve before then that would be a bonus.

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