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Re: 1999 S70 runs then dies (1Wagon post)

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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abscate
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Re: Re: 1999 S70 runs then dies (1Wagon post)

Post by abscate »

Some sort of turbo boost signal error I think. Let's get Board wisdom on the MAF disconnecting today
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread

Klausc
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Post by Klausc »

P0236 is the MAP sensor, barometric sensor, altitude sensor, etc. Here is a short write up on how to find and replace it:
http://forums.swedespeed.com/showthread ... 00-(p0237)

The p0238 = turbo/superboost sensor A circuit high input. This is also affected by the MAP sensor.
Klaus
If I had a larger garage, I could have more Volvos.

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abscate
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Post by abscate »

Let's go back to IPD and order up a MAP sensor ...good news is this one is a no tool replacement. Don't forget to remind them they owe you free shipping for making you wait for your MAF. :D

Your P0442/x code for EVAP might come back in 100 miles or so- you probably have a minor leak in that system but lets worry about that another day. Its not the cause of your stalling. Dont freak if your CEL comes back on in a few days.


Since it's beautiful fall day out This morning, I'll take some pix. I did mine this Spring, I thought I had thread on this but I can't find it.

Thread on MAP and IAT here
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread

1Wagon
Posts: 90
Joined: 23 March 2010
Year and Model: V70 1999
Location: Oregon

Post by 1Wagon »

Thanks Abscate and Klaus for posting the links on the MAP sensor. Indeed, I will most likely break those tabs.
I will order MAP sensor tonight and see what happens next. Anything special for replacement?
Ie. Disconnect battery or clear codes before or after replacement?

Should I drive with unplugged MAF for now as it runs much better that way?

Thanks in advance,
Amy
1999 V70 GLT
1981 VW Jetta Diesel (donated)
1978 Pair of Feet

2 kids (husband and son)
1 bun in the oven
1 German Shorthaired Pointer

1Wagon
Posts: 90
Joined: 23 March 2010
Year and Model: V70 1999
Location: Oregon

Post by 1Wagon »

PS Anyone need a new Bosch MAF? It was $130 and can't be returned. Any takers for $100? :D
1999 V70 GLT
1981 VW Jetta Diesel (donated)
1978 Pair of Feet

2 kids (husband and son)
1 bun in the oven
1 German Shorthaired Pointer

1Wagon
Posts: 90
Joined: 23 March 2010
Year and Model: V70 1999
Location: Oregon

Post by 1Wagon »

1999 V70 GLT
1981 VW Jetta Diesel (donated)
1978 Pair of Feet

2 kids (husband and son)
1 bun in the oven
1 German Shorthaired Pointer

Klausc
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Joined: 11 October 2006
Year and Model: 1995 855 Turbo
Location: Shorewood, MN
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Post by Klausc »

Before you order the part, can you give us new code readings from your scanner? The parts are expensive and I don't want you to get the wrong part.

BTW, some of the earlier codes pointed to the boost controler. I am not sure of your model, the location changes yearly it seems, but is usually close to the air cleaner. On my 1998 it was a small black box behind the air cleaner with 3 vacuum lines and 1 electrical plug. If one of the vacuum lines comes loose, drivability will be a problem.
Klaus
If I had a larger garage, I could have more Volvos.

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abscate
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Post by abscate »

Per earlier post, after MAF replacement
Only two codes on reader as of today:

P0238
P0236




Have a look at the turbo boost valve hoses, but I doubt that would cause your stalling unless they had fallen off.

That is the right part for your MAP, if you look at the last pic in the MAP thread you will see its the same. I had to wiggle mine hard to pop it out, grabbing the body of the valve firmly with pliers, down low on the electrical connector.

I'll PM you on the MAF.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread

1Wagon
Posts: 90
Joined: 23 March 2010
Year and Model: V70 1999
Location: Oregon

Post by 1Wagon »

Codes today are as follows:

PO238
PO236
P1238 (new one post MAF replacement)
1999 V70 GLT
1981 VW Jetta Diesel (donated)
1978 Pair of Feet

2 kids (husband and son)
1 bun in the oven
1 German Shorthaired Pointer

1Wagon
Posts: 90
Joined: 23 March 2010
Year and Model: V70 1999
Location: Oregon

Post by 1Wagon »

I have no idea if the following is indicative of anything related but upon starting the the car, it does put off a nice smoky could. Not dark at all. And there's liquid spitting out of the exhaust onto the floor of the garage I have noticed too.
1999 V70 GLT
1981 VW Jetta Diesel (donated)
1978 Pair of Feet

2 kids (husband and son)
1 bun in the oven
1 German Shorthaired Pointer

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