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P0305 code 96 850

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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2forty
Posts: 114
Joined: 21 December 2011
Year and Model: 850 1996
Location: Albuquerque NM
Been thanked: 2 times

P0305 code 96 850

Post by 2forty »

I have an error code p0305. What does the following scan readings mean.
Calc load 12
Ectf 204.8
Stftb1 0
Ltftb1 3.9
I know it is cylinder 5.
Installed new plugs.
Assistance Appreciated!
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scot850
Posts: 14900
Joined: 5 April 2010
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
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Post by scot850 »

Check you are getting spark to the cylinder.

Check the spark plug boot is connecting the plug correctly.

Check the plug gaps are 0.028"

Check the distributor cap and rotor for damage and wear.

Check inside the distributor for leaking oil internally.

Last thing, check the cylinder compression. Low compression may mean a burnt valve.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold
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MoVolvos
Posts: 5279
Joined: 15 January 2012
Year and Model: S&V70XC,S60,C30,XC90
Location: NC
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Post by MoVolvos »

2forty wrote: ↑12 Mar 2024, 19:59 I have an error code p0305. What does the following scan readings mean.
Calc load 12
Ectf 204.8
Stftb1 0
Ltftb1 3.9
I know it is cylinder 5.
Installed new plugs.
Assistance Appreciated!
.
P0305 Code Demystified — Cylinder 5 Misfire Detected
https://eeuroparts.com/blog/p0305-code- ... -detected/
.
My P0304 turned out to be the #4 injector. I started with the plugs and coils then fuel. Hindsight it's the easiest to check the injectors first.
viewtopic.php?p=642607#p642607
.
Blessings,

BKM


2008 C30 T5 2.0 M66
2007 S60 2.5T - New Project
2003 S80 T6 Transmission DIED
2000 S70 SE Base - New Project
1998 S70 T5 Prior
1989 240 Wagon Prior
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2forty
Posts: 114
Joined: 21 December 2011
Year and Model: 850 1996
Location: Albuquerque NM
Been thanked: 2 times

Post by 2forty »

Thanks for all of the replies!
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