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96 pontiac grand am 2.4L P0141 P0300 P0172 code problems

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

Molson02536
  • 3854 Answers

SOURCE: replaced both sensors in a 2004 Pontiac Grand Prix P0135 P0141

A code P0135 may mean that one or more of the following has happened: = O2 Heater element resistance is high
= Internal short or open in the heater element = O2 heater circuit wiring high resistance = open or short to ground in the wire harness. 
What to do; = Repair short or open or high resistance in wiring harness or harness connectors.
= Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
A code P0141 may mean that one or more of the following has happened:

Same as above: mentioned in P0135.
What do do is the same as above, so i am leaning towards and faulty wire harness since you have replaced both O2 sensors. Make sure the wire harness has no break in it or crushed connection clips. The other thing to look for is a bad fuse that is used to heat up the O2 sensor. It may not say O2 sensor on it, it may piggy back off something else so check all the fuse and make sure the O2 has a good ground and not corroded. Good luck and hope this helps. 

Posted on Jun 25, 2009

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What do these codes mean in a 2003 grand am pontiac P0128 P0141 P0440 B1000 B2965 and U1088


Go to OB2.com all codes are generic after 1996, doesn't matter the car, if you don't find it here, just google code & number, good luck.
I believe all the B codes are ABS related,

Aug 24, 2014 | 2003 Pontiac Grand Am

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1999 grand prix code P0108 and P0141


Until the problem is repaired the codes will come on

Jul 06, 2010 | 1999 Pontiac Grand Prix

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2001 grand am 2.4l p0300 and p0172, replaced coils, housing,boots and plugs, and injectors..what else could be?


those codes tell me your system is running rich and mutiple missfires. So I suspect it's your mass air flow sensor. It's located on the duct work from your air cleaner box to the throttle body. NOTE! A crack duct could also be causing this problem. Air can be escaping through this duct making the reading the flow sensor took to be incorrect.

Jan 23, 2010 | 2001 Pontiac Grand Am SE

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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

1 Answer

I have a 96 grand am gt 3.1 . i scanned the comp nad i have codes p0171, p0300, p1675, and p1864 can you help me with what these are


po171--system to lean bank 1, po300--random/multible missfire detected, p1675--manufacturer control auxilary inputs and auxilary outputs, manufacturer control transmission--p1864.

Jun 14, 2009 | 1996 Pontiac Grand Prix

1 Answer

Trouble codes


Hi Sandra!
The trouble codes listed are defined as:

P0141 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

P0300 Random/Multiple Cylinder Misfire Detected

P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2)

PO300 & PO331 are possibly symptomatic of issues caused by PO141, which would have a direct influence on the air/fuel mxture... which could cause missing and knocking.

So the first thing I would try is replacing the Bank 2 Oxygen Sensor, after making sure the wiring and connections to that sensor are in good shape.

Does the engine show any physical issues such as loosing coolant, smoking exhaust, overheating? A blown or leaking head gasket on the #2 bank could also present these (among other)
codes.

Good luck and let me know how it goes!

WB

Jun 09, 2008 | 1997 Pontiac Grand Am

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