How many things can be wrong with a P0171 cde? I have cleaned the MAF with the correct cleaner, put in saefoam, checked for vacuum leaks.

255

Asked by Dec 24, 2014 at 10:13 AM about the 2003 Buick LeSabre Custom

Question type: Maintenance & Repair

3 Answers

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Keep checking for the vacuum leak. It's after the MAF somewhere. Start the car, open the hood and get start moving hoses around, listen for hissing/leak. You can spray some carb cleaner around and you idle should increase. Worst case you can have the car smoke tested at your local garage.

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255

Thank you , I will give it a try.

255

I tried moving vac. hoses around and spraying. Also I tried spraying near the intake manifold, MAF sensor base,etc and no increase whatsoever in R. P.M. About 8 months ago it thru the same code but went away after a couple of days( and cleaning the MAF sensor.I used MAF cleaner spray) Mike

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