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- - PO171, 99 Blazer (https://blazerforum.com/forum/general-tech-help-7/po171-99-blazer-3473/)

frankjc

05-07-2006 06:12 PM

PO171, 99 Blazer

Hey all. I had my car scanned at Auto Zone... Came up with PO171 The PCM has determined that during testing, the fuel system for bank 1 was too lean.
Any ideas?

magtec

05-07-2006 07:13 PM

RE: PO171, 99 Blazer

http://www.obd-codes.com/trouble_cod...gen-sensor.php

4lowlife

05-07-2006 07:47 PM

RE: PO171, 99 Blazer

I would start by cleaning the MAF sessor w/ electrical parts cleaner. Erase the code and take it from there.

Could be a bad O2 sensor. Dunno yet.

frankjc

05-08-2006 12:19 AM

RE: PO171, 99 Blazer

Thanks...I'll give it a shot.

MCas86

05-08-2006 03:12 PM

RE: PO171, 99 Blazer

i liked that site mag, thanks for posting it, i added it to my favorites...could b useful in the future along with asking people on the forum.

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