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1998 S70 Misfiring and Stuttering/Vibrating

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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precopster
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Year and Model: Lots
Location: Melbourne Australia
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Re: 1998 S70 Misfiring and Stuttering/Vibrating

Post by precopster »

You fuel pressure at the rail is 27 psi and you thought this was within limits?

Double that figure and that's where is should be. 8-)
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

styoung94
Posts: 28
Joined: 16 December 2012
Year and Model: 1998 S70
Location: East Coast

Post by styoung94 »

You fuel pressure at the rail is 27 psi and you thought this was within limits?
Whoops my bad. It was a typo, I meant 47.

styoung94
Posts: 28
Joined: 16 December 2012
Year and Model: 1998 S70
Location: East Coast

Post by styoung94 »

Alright so I pick up my car from the mechanic. He could feel the misfiring, but couldn't get it to throw a code. So he figured it's an ignition coil. The only problem is it's a '98, it doesn't have an ignition coil. At least not to my knowledge. I didn't mention this to him as he recommended I just drive it till it comes on and then bring it in.

He also said the pcv system looks fine, although I don't know what he did to check it.But he didn't charge me for the time it's been there so I guess I can't complain.

I'm ordering the wires and distributor cap/rotor after I post this. I'll update on how it is after I install em next week.

styoung94
Posts: 28
Joined: 16 December 2012
Year and Model: 1998 S70
Location: East Coast

Post by styoung94 »

Ah on second thought I stand corrected. There is an ignition coil, but only one. Is there a way to check if that is faulty? Or would that present different symptoms?

This is the coil that I am speaking of:

https://www.fcpeuro.com/products/volvo- ... 70-1275174

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