'95 Explorer Miss/Stall problem
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Junior Member
Joined: Mar 2007
Posts: 17
Update.
Explorer ran good for a couple of days, and then the problem seems to have come back. But not as bad.
I ran a Key On, Engine Run scan, and got these codes.
#137........HEGO(HO2S) sensor fault, always rich.
#538
#536........Brake On/Off circuti not activated during KOER
#632........Overdrive transmission Cancel Switch/no action during self engine run test.
Does the 137 code mean the O2 sensor is bad? Since there are two sensors, how do I determine which one it is?
Explorer ran good for a couple of days, and then the problem seems to have come back. But not as bad.
I ran a Key On, Engine Run scan, and got these codes.
#137........HEGO(HO2S) sensor fault, always rich.
#538
#536........Brake On/Off circuti not activated during KOER
#632........Overdrive transmission Cancel Switch/no action during self engine run test.
Does the 137 code mean the O2 sensor is bad? Since there are two sensors, how do I determine which one it is?
Thread Starter
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Junior Member
Joined: Mar 2007
Posts: 17
A further test today, involved a test drive with short series of drives. Vehicle stalled several times, sometimes with a bit of warning, sometimes with out. Warning would be a series of misses, rpm fluxuating.
Each time the engine started, though with a bit of cranking. When it started, it would run raggedly, unless the engine was raced. Often there would be an oder of fuel.
The way it is acting, I almost get the impression it is flooding out.
So, tomorrow we will test the fuel pressure regulator.
Each time the engine started, though with a bit of cranking. When it started, it would run raggedly, unless the engine was raced. Often there would be an oder of fuel.
The way it is acting, I almost get the impression it is flooding out.
So, tomorrow we will test the fuel pressure regulator.
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jfh123
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Apr 25, 2014 10:36 PM
