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Po171 cnf code - Freestyle Ford Cars & Trucks

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2002 grand prix gt po171 code


Thats code for a bad O-2 sensor. That can be caused by antifreeze getting into the exausht. Try clearing the code and putting in a can of Sea-Foam. I have had good success with that cleaning off the sensor.

Jul 29, 2014 | 2002 Pontiac Grand Prix

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Po171 po174 code


Lean bank 1 and bank 2 , and throttle actuator system fault. Check reason for lean codes 1st, vacuum leak(s), air inlet boot and hoses, or low fuel pressure / clogged filter. Repair as needed then clear codes and recheck .

Jan 09, 2014 | Cars & Trucks

2 Answers

Mustang low dle po171


mustang forum solution.


http://www.moddedmustangs.com/forums/v6-mustangs/39429-trouble-code-po171.html



I had the same problem. Scroll down in that link.
you are running too lean.
Chip? tune?

Feb 02, 2013 | 2001 Ford Mustang

1 Answer

Generic code PO171 system 2 lean bank 1 generic


This can be caused by a faulty mass air flow sensor

Jul 06, 2010 | 1999 Ford Taurus

1 Answer

Ses light on code po102 and po171 2000 buck lesabre


Have 2000 Buick Lesabre custom every time car gets up to operating temp. the engine misses going down the road , also let car sit and idle and it shuts off after about 2 minutes , my code reads PO171 system to lean bank 1, changed co2 censor, mass air flow censor, plug wires, and plugs.

May 15, 2010 | 2000 Buick LeSabre

1 Answer

1996 olds cutlas supreme, 3.1 L has trouble codes PO171 and PO300. Any Ideas?


The po300 is a misfire code.This means there is probably a plug,plug wire,ignition coil,or ignition module.Check the coil towers one at a time.These are know for corroding.If you find one that is corroded then replace the plug wire also.Po171 is a lean condition code.The po300 could be causing the po171.If you have not had a tune up Now would be a good time.Hope this helps.Good luck.

Jan 06, 2010 | 1996 Oldsmobile Cutlass Supreme Coupe

1 Answer

Code po300 comes on when you drive p1133,po171


code P0300 means random cylinder misfiring, have u checked spark plugs and cables

Jul 24, 2009 | Chevrolet Blazer Cars & Trucks

1 Answer

1996 ranger 4.0 codes po171 and po174 come up on the screen


Check for vacuum leaks, especially the intake manifold gaskets. If those are o.k., clean the Mass air flow sensor.

Apr 12, 2009 | 1996 Ford Ranger SuperCab

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