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Code P1171 Means A Bad MAF Sensor....

posted by  rd on  Tue Sep 30 11:27 CST 2003
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last visit: Wed Feb 18 04:10 CST 2009
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To All,

If your CEL comes and goes and usually goes out a short time after you get gas. Right!

It's the MAF. See if you get a P1171 on a generic code reader like an Equus 3100 even though it says Rotor Sensor. I bet the MAF's life span is about 4 to 6 years.

You can mail ordered it for about $162. plus shipping.

Steps are easy :

1- Disconnect MAF connector.
2- Unscrew two torx screws which connect MAF tube to the airbox.
3- Remove O-clamp and disconnect MAF tube from tube which goes down to engine.
4- Install new MAF tube reversing steps.

Note : Disconnecting MAF tube to the engine tube is a PITA. Take a hot air gun or blow dryer to heat up union of the two and pry apart by hand. If you still can't do it get a plastic screwdriver or the like and start prying between the two very delicatly so not the break or distort the engine tube. You will see what I mean once you start.

Dealer said not necessary to disconnect the battery. They said it's not worth the risk of sparking or shorting another component. But use you own judgement.


rd
--
99 c70 hptm 37k miles






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