Question about 2000 Buick LeSabre

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Ses light on code po102 and po171 2000 buck lesabre

Ses light on code po102 and po171 2000 buisk lesabre with 7500 miles on it could you give me some directions yo go with this

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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.

Posted on Jun 09, 2010

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Hi there,
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Posted on Jan 02, 2017

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Codes po171 174


Here we go.... just pulled out our service ticket:

Soooo interesting, I had never looked at these before:

So on 1/10/2005 we took the Vue in, and they did the following:
date: 1/10/2005
"CUSTOMER STATES THE SES LIGHT IS ON"
CAUSE: UNKNOWN
TECH COMM: SES LIGHT IS ON. FOUND FUEL TRIM LEAN CODE P0171 & P0174. RETORQUE INTAKE VACUUM CHAMBER BOLTS AND INSTALL VACUUM CHAMBER SPRINGS PER BULLETIN02/06/01/016A

REPAIR 1: INLET AIR CONTROL VACUUM RESERVOIR - REPLACE


Then, evidently it came back on a week later:

date 1/17/2005:

LINE1: "CUSTOMER STATES THE SES LIGHT IS ON"
CAUSE: OPEN
TECH COMM: SES LIGHT IS ON.
FOUND CODE P0171 FUEL TRIM LEAN B1 CODE P0174
FOUDN MASS AIR FLOW SENSOR FAILED REPLACED MAF SENSOR


...

The problem NEVER came back..

There's my experience. Good luck!

Apr 19, 2014 | 2002 Saturn VUE

3 Answers

2004 GMC ENVOY SES light came on....


so many codes suggest a problem ECM or BCM
check for all ground points , battery connections and harness connections to the computer units

May 16, 2017 | GMC Envoy Cars & Trucks

1 Answer

Ses light on say - 1457


If it's around 100k miles it maybe the computer starting to fail have a machinic run a scan and see if it's the module.. Let me know I maybe able to rebuild it/replace it

Dec 02, 2013 | Honda Odyssey Cars & Trucks

1 Answer

01 gmc safari has rough idle and service soon lite is on. 155k mile. Runs smooth at highway speeds.


Have you had it scanned to find out what the code is for the SES light. It will give you a clue in to the problem. Autozone will read your codes for free.

Apr 11, 2010 | 2001 GMC Safari

2 Answers

Code p0741


Torque Converter Clutch (TCC) Stuck Off.

You may have a faulty TCC solenoid valve.

Simply means the clutch in the torque converter does not engage when you reach cruising speed and will effect overall fuel economy.
Requires workshop/dealer repair.


Oct 12, 2009 | 2003 Cadillac Deville

1 Answer

Have SES light on Scaned PCM egr out of range on


First you need to remove the egr and clen the carbon out the pintle gets clogged and restrics the flow and in turn throws a code as all the checks are made by the pcm"drive cycles".

Jul 26, 2009 | 1994 Buick LeSabre

1 Answer

95 Blazer code P0401


Have a little read of this link, it may help you.

http://www.obd-codes.com/p0401

Jun 19, 2009 | 1995 Chevrolet Blazer

2 Answers

SES light (again!)


P0440 code is EVAP control system problem.This has to do with emissions from the carbon can, fuel tank and general leaks that come from fuel evaporation. Anywhere gas fumes can escape the systerm. This code is very common and can be caused by a simple fuel cap being loose or leaking. Check the fuel cap and reset the coputer. If the SES light comes back on there could be a problem with some of the systerm controls. ie vent valve,purge valveand canister. And /or vac leaks.

May 26, 2009 | 2003 Saturn VUE

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