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850 not getting fire from distributer to plug wires.

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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Derbyrunner
Posts: 14
Joined: 17 August 2016
Year and Model: 1998 S70
Location: Kentucky

850 not getting fire from distributer to plug wires.

Post by Derbyrunner »

Alright trying to help a friend out with his 95 850 glt. Changed coil out and still not getting fire to plug wires. Distributer is not cracked. Could faulty TCU or ECU cause this issue?

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erikv11
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Year and Model: 850, V70, S60R, XC70
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Post by erikv11 »

Is the coil making spark, but its not getting out of the cap? That would point to the rotor.

If you mean no spark at the coil, I would suspect the cam position sensor (more common) or the crank sensor (less common).
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
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gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

Derbyrunner
Posts: 14
Joined: 17 August 2016
Year and Model: 1998 S70
Location: Kentucky

Post by Derbyrunner »

Coil is making a spark but that's where it ends.

m96ag
Posts: 172
Joined: 12 June 2013
Year and Model: 2000 V70XC
Location: USA

Post by m96ag »

Derbyrunner wrote:Coil is making a spark but that's where it ends.
Change the cap and rotor.
2000 V70XC 160,000mi.

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bmdubya1198
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Post by bmdubya1198 »

Rule #1 of diagnosing issues with your Volvo: it is not your ECU, ECM, or computer. (Hope you don't mind me quoting you, abscate!)
Might be the rotor.
00 V70R Venetian Red/Charcoal M56 Swapped 214k
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91 944 Turbo 175k
…and a bunch of other stuff
Sold-
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00 S70 GLT
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93 944
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