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1994 850 No start [solved, lawnmower syndrome] Topic is solved

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Badweed
Posts: 2
Joined: Fri Sep 27, 2019 4:13 pm
Year and Model: 1994 Volvo 850 Turbo
Location: Coeur d Alene
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Badweed

1994 850 No start [solved, lawnmower syndrome]  Topic is solved

Post by Badweed » Fri Sep 27, 2019 4:24 pm

Hello and thanks in advance for your help.

I've been working on my son's 1994 850 Turbo. His door was squeaking bad related to a crack in the A pillar, which I fixed with self threading screws... worked like a champ.

When I went to start the car to put it on jack stands for the oil change, it cranks but no start. Battery is good. I replaced the camshaft sensor last spring (less then 6 months)

I'm getting spark from both the ignition coil and the last spark plug passenger side. I didn't test any of the others. When I pulled a couple plugs they looked ok...a little black deposit.

I can hear the fuel pump running when I turn the key and am getting fuel to the rail.

I checked the rpm sensor and resistance is around 300, which I think is good.
I removed the MAF. It looks clean, but still wouldnt start with it unplugged.

I cleared all the codes and tried the ignition again before reading them again.

On the A1 jumper I am getting...

134 Faulty load signal from ignition control module
114 Program selector open circuit or short circuit to supply

I dont know what 114 is referring to?

Is the ignition control module the same as the coil? Would I get speak but no start if it was bad?

What am I missing?

Thank you

Steve



Badweed
Posts: 2
Joined: Fri Sep 27, 2019 4:13 pm
Year and Model: 1994 Volvo 850 Turbo
Location: Coeur d Alene
Has thanked: 0
Been thanked: 0
United States of America
Badweed

Re: 850 No start

Post by Badweed » Sun Sep 29, 2019 1:58 pm

So it turned out to be "lawnmower syndrome." I pulled the plugs and put a wee bit of oil in each....jumped the battery (dead from multiple attempts) and vroom!!! Ran like crap for about 10 mins and now back to normal. Great forum.



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erikv11
Posts: 9223
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850, S/V70, 06 S60R
Location: Iowa
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erikv11

Re: 850 No start

Post by erikv11 » Sun Sep 29, 2019 2:10 pm

Thumbs up, well done!


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

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