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by zpsny91
10 Jun 2017, 14:38
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Volvo C70 2004 intermittent lagging/unresponsive.
Replies: 13
Views: 3448

Re: Volvo C70 2004 intermittent lagging/unresponsive.

These cars are too complex to diagnose by symptom, especially when they are spurious. You have pretty much covered the ignition troubleshooting with coils and plugs ( yeah ME7) so start with getting fuel pressure monitored at the rail. You can sacrifice a tire pressure gauge to read this. If the pr...
by zpsny91
08 Jun 2017, 18:52
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Volvo C70 2004 intermittent lagging/unresponsive.
Replies: 13
Views: 3448

Re: Volvo C70 2004 intermittent lagging/unresponsive.

These cars are too complex to diagnose by symptom, especially when they are spurious. You have pretty much covered the ignition troubleshooting with coils and plugs ( yeah ME7) so start with getting fuel pressure monitored at the rail. You can sacrifice a tire pressure gauge to read this. If the pr...
by zpsny91
07 Jun 2017, 17:00
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Volvo C70 2004 intermittent lagging/unresponsive.
Replies: 13
Views: 3448

Re: Volvo C70 2004 intermittent lagging/unresponsive.

abscate wrote: 07 Jun 2017, 16:53 Ambient temp sensor,,,not a biggie, near the front right side of car?
Correct, hanging down just behind of the front bumper.
by zpsny91
07 Jun 2017, 16:52
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Volvo C70 2004 intermittent lagging/unresponsive.
Replies: 13
Views: 3448

Re: Volvo C70 2004 intermittent lagging/unresponsive.

These cars are too complex to diagnose by symptom, especially when they are spurious. You have pretty much covered the ignition troubleshooting with coils and plugs ( yeah ME7) so start with getting fuel pressure monitored at the rail. You can sacrifice a tire pressure gauge to read this. If the pr...
by zpsny91
06 Jun 2017, 23:20
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Volvo C70 2004 intermittent lagging/unresponsive.
Replies: 13
Views: 3448

Re: Volvo C70 2004 intermittent lagging/unresponsive.

I had similar issues with my 2005 XC90 2.5T (similar setup as your 2004 C70)... Cleaned the Throttle Body, problem solved! See the DIY I wrote for 2005 XC90: https://www.matthewsvolvosite.com/forums/viewtopic.php?t=78629 Awesome. Thanks for the DIY. Maybe I'm taking the OBD readings a bit too serio...
by zpsny91
06 Jun 2017, 21:56
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Volvo C70 2004 intermittent lagging/unresponsive.
Replies: 13
Views: 3448

Re: Volvo C70 2004 intermittent lagging/unresponsive.

Hi, thanks for the reply. I do not have any malfunction codes at the moment. I will give cleaning the MAF a try tomorrow evening. I will let you know if I have any luck with that. Any other ideas are appreciated as well!
by zpsny91
06 Jun 2017, 19:39
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: Volvo C70 2004 intermittent lagging/unresponsive.
Replies: 13
Views: 3448

Volvo C70 2004 intermittent lagging/unresponsive.

Hi All I'm new to the forum and this will be my first post. I should have likely been a member before now, as I've been doing a lot of my own work considering Svetla (2004 Volvo C70 2.3 Turbo) would break me if I took her to Volvo every time she acts up. The car has right at 105K miles. I keep her f...