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What is the most common cause of p0171 code on 2004 saab 93
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Jan 15, 2017
by
Bob R
The engine hiccups during acceleration and occasionally throws p0171 engine too lean code.
Yesterday after some 60-100mph highway acceleration I found the dipstick out about an inch and motor oil had sprayed out onto the engine. Help will be greatly appreciated.
Thanks
Vehicle:
2004 saab 93 arc 2.0T (high output turbo) b207r
check-engine-light-on
p0171
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Feb 17, 2017
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Carguy1
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HI there
The most common cause for this code is a bad mass air flow sensor. Sometimes an intake manifold gasket leak will also cause this. If it's blowing the dipstick out though, you might have a valve or timing issue allowing to much compression back into the engine.
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