Code 172 came up on diagnostic test for 1999 pontiac sunfire. What does that mean?

oxygen sensors, purge canister (if has filter replace) pressure sensor gas tank. google OBD II Codes, will give you what triggers the code helpful for troubleshooting

Jan 02, 2013 • 1999 Pontiac Sunfire

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My 1999 pontiac sunfire 2.2 liters did not pass the e-test. I feel that something tells my computer to run rich at 2000 rpm. I changed the spark plugs and the air filter. After driving 200 Klm. the engin...

The code P0137 means that your downstream O2 sensor has low volts. A rich running engine makes the voltage go high, not low. If the upstream sensor is not reading a rich or lean condition, then you need to replace your downstream O2 sensor.

Dec 21, 2011 • 1999 Pontiac Sunfire

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Engine oil type and capacity for 1999 Pontiac Sunfire SE

You did not specify the engine size but I looked them both up.They take 5w-30 and both take 4 qts.Hope this helps.

Mar 14, 2010 • 1999 Pontiac Sunfire

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I have a 1999 sunfire the fuel pump dont have power and the relay and fuse is good what could it be

ignition switch

Nov 25, 2009 • 1999 Pontiac Sunfire

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We have a 1999 Pontiac Montana with an unknown trouble code.

P1483=engine cooling system performance
Are you adding coolant each time this light comes on in the coolant reservoir?
if so,you need to find where it is leaking out,

Nov 21, 2009 • 1999 Pontiac Montana

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Car radio lock on 1999 pontiac sunfire

how do i get the lock code for my car stereo 1999 pontiac sunfire gt

Jan 01, 2009 • 1999 Pontiac Sunfire

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1999 pontiac sunfire code p0440

P0440 - Evaporative Emission (EVAP) System, this code is most often caused by leaving the gas cap loose, or off.

Sep 21, 2008 • 1999 Pontiac Sunfire

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Jonah Oneal

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Posted on Nov 10, 2009

Jonah Oneal

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CODE PO172 - FUEL SYSTEM RICH BANK 1 CONDITIONS. POSSIBLE CAUSES : 1. BASE ENGINE MECHANICAL FAULT AFFECTING ONE OR MORE CYLINDERS. 2.EVAP SYSTEM COMPONENT HAS FAILED OR CANISTER FUEL SATURATED. 3.FUEL CONTROL SENSOR IS OUT OF CALIBRATION.( ECT IAT MAP ) 4. FUEL SYSTEM SUPPLYING TOO MUCH FUEL AT IDLE SPEED OR AT CRUISE. 5. FUEL INJECTOR(S) IS LEAKING OR STUCK PARTIALLY OPEN. ( ONE OR MORE ) 6. HO2S IS CONTAMINATED DETERIORATED OR IT HAS FAILED.

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Code 172 came up on diagnostic test for 1999 pontiac sunfire. What does that mean?

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Jonah Oneal

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My 1999 pontiac sunfire 2.2 liters did not pass the e-test. I feel that something tells my computer to run rich at 2000 rpm. I changed the spark plugs and the air filter. After driving 200 Klm. the engin...

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Code 172 came up on diagnostic test for 1999 pontiac sunfire. What does that mean?

1 Answer

Jonah Oneal

Add Your Answer

Attachments: Added items

Related Questions:

2001 Pontiac Sunfire has ABS and Check Engine light on. Car needs emission test?

My 99 Pontiac s unfire reads 8 8 8 ... what does this mean

How to fix p1870 on pontiac sunfire

I have 5 po codes they are 132 141 341 342 and 440 Whats going on

My 1999 pontiac sunfire 2.2 liters did not pass the e-test. I feel that something tells my computer to run rich at 2000 rpm. I changed the spark plugs and the air filter. After driving 200 Klm. the engin...

Engine oil type and capacity for 1999 Pontiac Sunfire SE

I have a 1999 sunfire the fuel pump dont have power and the relay and fuse is good what could it be

We have a 1999 Pontiac Montana with an unknown trouble code.

Car radio lock on 1999 pontiac sunfire

1999 pontiac sunfire code p0440

Not finding what you are looking for?

1999 Sunfire

2001 Pontiac Sunfire has ABS and Check Engine light on. Car needs emission test?

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