Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

check engine code

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Old 04-29-2008, 08:02 PM
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Default check engine code

Have a 96 850 turbo and today I got a check engine light. Took the car straight to autozone to read the trouble codes. code is P0103. the diagnosis is a mass air flow input. the attendant suggested the manifold absolute pressure is bad. but im not convinced. could it be a PCV problem, since i have read this should be replaced.
I just bought this car so finding many things wrong with it.
Any suggestions appreciated.
rob
 
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Old 04-29-2008, 08:30 PM
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Default RE: check engine code

The PCV might.
Did they clear the code?
 
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Old 04-29-2008, 10:45 PM
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Default RE: check engine code

No, they just read it.
but they printed this explanation of possible problems.

1. vacuum hose off, cracked tube loose off, or cracked.
2. throttle body intake tube loose off, or cracked.
3. Baro (Barometer)/NAP (Manifold Absolute Pressure) defective.
4. VAF (Vana Air Flow)MAF (Mass Air Flow) sensor dirty or defective.
Engineload or the air volume entering the engine is measured by these components. The computer has recognized a return signal error.
 
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Old 04-30-2008, 08:35 AM
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Default RE: check engine code

Check the connections to the MAF and see if Autozone will clear (or let you clear) the code to see if it comes back. As tech was getting at, it may have just been a one time hiccup that tripped the light
 
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Old 04-30-2008, 09:47 PM
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Default RE: check engine code

I will try to get the code cleared. I hope it was a one time thing. I wife was driving the car to because her v70 was in the shop. and she said when she started the car it started shaking very bad, so she got scared and turned it off imediately. then she restarted it and the shaking went away but the check engine light came on. i have not experienced the shaking that she was talking about.
 
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