Question about 1997 Pontiac Bonneville

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My 96 Bonneville had two codes.... po0300 and

My 96 Bonneville had two codes.... p0300 and p0171. the idle is just above 1000 now. Any ideas?

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P0300 might be spark plugs and wires

Posted on Mar 19, 2009

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Posted on Jan 02, 2017

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1999 Firebird with P0171, P0174, P0300 codes


P0300 - random misfire , P0171 & P0174 lean code's . All of this means you could have a bad vacuum leak ,low fuel pressure ,clogged fuel filter , Mass air flow sensor problem .
Ford 150 P0171 P0174 Trouble Codes vacuum leak water test
Low fuel pressure causing P0171 and P0174 trouble code

Nov 04, 2017 | 1999 Pontiac Firebird

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98 dodge ram 1500 5.9L 2wd codes P0300, P0301, P0302, P0303, P0171. What all do I need to do to resolve??


the p0300--p0301-p0302=p0303 are misfire codes and can mean needs tune up or wiring problem and p0171 is system to lean bank 1 with this code if you correct it will probably correct the misfire codes your receiving
http://www.obd-codes.com/p0171 Fixing Hesitating Car P0171 Code YouTube P0171 System Too Lean Bank 1

Aug 26, 2016 | Dodge Cars & Trucks

1 Answer

2012 Nissan Versa 1.6, after idling for a about 20 minutes (or while in heavy traffic) engine starts sputtering and eventually would stall. Would no start till cooled off. The following codes come up :...


P0171 and P0174 are telling you that each cylinder bank is running too lean. P0300 is telling you there is a misfire, possibly caused by the other codes. This is why the engine is running rough.

Oct 20, 2013 | Cars & Trucks

1 Answer

What causes a car to stumble and tries to quit but it just takes spells doing this? I get a P0171 and P0300. I have already replaced the fuel filter, air filter, mass air flow sensor, and cleaned the...


Seems likely both codes are related and P0300 is firing issue not isolated to a given cylinder and P0171 likely due to a flow restriction. I would suggest having the jets removed and rekitted.. A more professional scanner may drill down the issue further, as it could be a failing fuel pump.

Oct 05, 2017 | 1997 Pontiac Bonneville

3 Answers

2003 Ford Ranger 4x4 extended cab- diagnostics checked and got these codes- P0171, P0174, P0300, P0316. Can you tell me what they mean?


P0171------ system too lean bank#1
Po174------ system too lean bank#2
For these 2 codes, try cleaning the maf sensor (mass air flow), that is mounted in the big black hose that goes from the air filter housing to the throttle plate, if it is dirty, that will cause those 02 sensors to send a signal to the computor to lean the air fuel mixture. If cleaning it doesn't work, the sensors will probably need changing.
P0300---- Random/multiple cylinder misfire
P0316---- Cylinder misfire at start up---- first 100 revolutions.
On those 2 codes, you have to do some testing to find out why there is a misfire.
Possible causes:
dirty/malfunctioning injectors
weak coil pack
fowling spark plugs/wires
Low fuel pressure

May 11, 2010 | 2003 Ford Ranger Regular Cab

2 Answers

Have code P0001, P0171, & P0300. Need to know


P0300 Random/Multiple Cylinder Misfire Detected
P0171 System too Lean (Bank 1) - Read Our Article On Oxygen Sensor Codes For Help With This Generic Check Engine Light Code
i could only find the 2 codes for you
try here
www.engine-light-help.com
what kind of shape are your plug wires in ?

Jan 14, 2010 | 2005 Chevrolet Suburban

1 Answer

Need info for codes


P0171 System too Lean (Bank 1)
P0300 Random/Multiple Cylinder Misfire Detected
check for vacuum leaks
check fuel for contamination or water
check fuel pressure
the other 2 codes could be related to these 2 codes and are manufacturer specific codes
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Jun 14, 2009 | 1996 Pontiac Grand Am

3 Answers

2001 GMC Jimmy Idling rough


HI
P0300 is multiple misfires.
P0171 is lean burn on left bank 1 means drivers side
02 sensor is faulty. Your vehicle is over fuelling that is why your are getting P0300 code and the rotten egg smell. Good idea is to replace both 02 sensors.

Apr 04, 2009 | 2001 GMC Jimmy

1 Answer

DTC P0300, P0302, P0171, PO506


hey man i have the same problem... did you fix it.. i need help please email me at carlos_42611@yahoo.com if you have any info!

Mar 15, 2009 | 2004 Mazda RX-8

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