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Mustang codes= Help!! UPDATE!!!! REpl....

Old 07-16-2008, 01:26 AM
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kennebellgt
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Default Mustang codes= Help!! UPDATE!!!! REpl....

UPDATE: UPDATE: >>> I changed both 02 sensors and the car is still running lean im stumped, i changed the fuel pump fuel filter now 02sensors, i dont know what else it could be i found an exhaust leak on the rubber hose that comes from the cats it was ripped pretty bad i fixed that and still running lean, i have no clue on what it could be now its ticking me off anyways any idea's? [sm=lame.gif]



I pulled some codes from my 95 GT Mustang and code 172R came up and that means= HEGO (HO2S) sensor fault/lean. What could be wrong, my fuel pressure is set at 40psi just changed my fuel pump and fuel filter, i dont know what it could be so any advice would be greatly appreciated, Thank You for your time
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Old 07-16-2008, 02:07 PM
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Default RE: Mustang codes= Help!!

bump
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Old 07-16-2008, 04:15 PM
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bump +1
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Old 07-16-2008, 05:34 PM
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Default RE: Mustang codes= Help!!

change the O2 sensor.. I bet it goes away

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Old 07-17-2008, 11:48 PM
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Default RE: Mustang codes= Help!!

right on yeah i am going to throw some in, could it aslo be my egr sensor? (thing that mounts to the manifold or egr spacer) it seems to make a buzzing noise when i give it gas
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Old 07-18-2008, 06:33 AM
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Default RE: Mustang codes= Help!!

ORIGINAL: kennebellgt

right on yeah i am going to throw some in, could it aslo be my egr sensor? (thing that mounts to the manifold or egr spacer) it seems to make a buzzing noise when i give it gas
no
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Old 07-18-2008, 07:08 AM
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mjr46
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Default RE: Mustang codes= Help!!

make sure there are no exhaust leaks before o/2 on that bank also
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Old 07-18-2008, 03:00 PM
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Default RE: Mustang codes= Help!!

the codes that came up did not specify on which bank it just says o2 sensor fault/ low voltage
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Old 07-22-2008, 07:22 PM
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Default RE: Mustang codes= Help!! UPDATE!!!! REpl....

bump need advice, only a few people that give help on these forums now days, special thanks to mjr 46 & adder you guys are the Sh*t
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Old 07-22-2008, 08:06 PM
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Default RE: Mustang codes= Help!! UPDATE!!!! REpl....

172 - O2 Sensor sensor circuit indicates system lean (right side)
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