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850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
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850 T5R momentary cut out under hard accelerationViews : 2841 Replies : 39Users Viewing This Thread : |
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May 11th, 2024, 05:03 | #31 |
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What plugs are you running?
Also I had this with a bad coil pack And if the cam timing is off |
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May 11th, 2024, 13:22 | #32 | |
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Yes, it would seem most Volvo engine management systems are sensitive to having the correct MAF meter and aftermarket can cause a host of running and performance issues.
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Liam... '96 854 TDI SE, '99 V70 2.5D S, '05 C70 2.0T Collection, '05 S80 2.0T SE, '15 V70 D4 SE Lux Nav. |
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May 15th, 2024, 10:01 | #33 |
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Genuine Volvo spark plugs.
I have put on a new camshaft position sensor which I hope reduces the risk of the cam timing being off but still could be, I guess. I haven't investigated the coil yet-maybe underperforming under load perhaps? Thanks for your comments. |
May 15th, 2024, 10:02 | #34 |
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It was from another car that had no issues, Liam. Agreed though, the absolute best option is a new one!
The old MAF will be going back in! Thanks for replying. |
May 15th, 2024, 10:29 | #35 | |
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1996 850 T5 - Sold 2003 S40 1.9d - Sold 2004 S60 D5 |
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May 20th, 2024, 12:13 | #36 |
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An update as I finally got around to undertaking further investigation!
I was going to inspect the wastegate actuator but thought I would do the easy job first and so switched over the MAF for the old one and hey presto, she revved right up to around 5500 - 6000 with no hesitation. If I had to make a judgement call I would say that the problem was likely to have been a combination of the TCV, which Dancake kindly gave me, and the MAF. Also a big thank you to those that directed me to look at the MAF again (Baffler, Luxobarge included). I think the next job is probably going to be suspension related as I have the original front shockers and I am not sure they are performing as they should! Any thoughts on good but not exorbitant costing replacements? Cheers. |
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Jun 3rd, 2024, 10:49 | #37 |
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Nothing to do with my previous problems but it was a nice day down here in Devon, the car is clean and running beautifully. Took a couple of photos and thought I would share them with my forum buddies.
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Jun 3rd, 2024, 12:56 | #38 |
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Looking good and great to hear it's running sweet again! Time to enjoy!
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Liam... '96 854 TDI SE, '99 V70 2.5D S, '05 C70 2.0T Collection, '05 S80 2.0T SE, '15 V70 D4 SE Lux Nav. |
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Jun 3rd, 2024, 15:58 | #39 |
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Jun 3rd, 2024, 17:53 | #40 |
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Thanks guys
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