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Code P0118 - previously P0117

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, 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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Booya
Posts: 4
Joined: Tue Dec 20, 2016 2:50 am
Year and Model: 1997 850
Location: Virginia

Code P0118 - previously P0117

Post by Booya »

I have a 97 850(non-turbo). She's been giving me fits for a couple of months now. She started by dying while I was out one day and refusing to start. I towed her home and she gave me codes for misfiring in cylinders 1,2,and 3. I checked compression and it was good in all 5 cylinders. A friend suggested to look at the cam position sensor so I did and the connector fell apart in my hand. I replaced the cam position sensor and all other codes went away except for the cam position sensor code! Since then, I have replace plugs, replaced the distributor cap and rotor, entire breather system. All the codes went away for about a week. Then P0117 popped up. So just to be on the safe side, I replaced the thermostat and temp sensor (all new parts) and even after clearing the code, it came back. My wife drove the car to work one morning and when she was going to come home it wouldn't start. I went to look at it and it started up for me but idled rough and now reads the code P0118. I drove her home and she seemed to run OK except at red lights when she would hitch and sputter randomly. Can anyone help? I'm afraid how much a mechanic is going to charge for whatever they want to make up when they look at her. Thanks.

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abscate
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Post by abscate »

Did you use Volvo for the temp sensor? ( it's often called ECT here) aftermarket works less than half the time. Inspect the connector and wires too. All your symptoms match a bad ECT
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
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Booya
Posts: 4
Joined: Tue Dec 20, 2016 2:50 am
Year and Model: 1997 850
Location: Virginia

Post by Booya »

I will have to look at that. Thanks

Booya
Posts: 4
Joined: Tue Dec 20, 2016 2:50 am
Year and Model: 1997 850
Location: Virginia

Post by Booya »

How do I test the sensor to tell if it's bad or not?

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abscate
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Post by abscate »

Search this forum for the string

"Engine Coolant Temperature Resistance Chart"

and you will find the resistance numbers you can measure with a VOM if you/pal has one.

Otherwise, its a test by replacing.
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DeathRex
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Year and Model: 1996 850 Turbo
Location: Cortez, Colorado
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Post by DeathRex »

Booya wrote: My wife drove the car to work one morning and when she was going to come home it wouldn't start. I went to look at it and it started up for me but idled rough and now reads the code P0118. I drove her home and she seemed to run OK except at red lights when she would hitch and sputter randomly.
Yea but how was the car running?

Booya
Posts: 4
Joined: Tue Dec 20, 2016 2:50 am
Year and Model: 1997 850
Location: Virginia

Post by Booya »

She seemed to run OK until I had to slow down or stop.

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abscate
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Post by abscate »

When you get the no start is when you can learn good information. Have some ether handy and give it a 1-2 second shot into the air intake, that's the fastest way to diagnose fuel vs ignition problem for running.

You have to use Volvo for that sensor though. After markets are a real roulette wheel spin.
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