Help! 5mpg!!!

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Apr 2, 2011 | 05:45 PM

#11

Just call me Sean

We'd do it

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From: Orlando,Fl.

173= oxygen sensor indicates system always rich

I would say to check the fuel pressure first. Engine off, running, bleed down time.

Apr 2, 2011 | 05:46 PM

#12

ymeski56

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Joined: Jul 2008

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From: Long Beach Calimexifornia

This was the Key on/engine off (KOEO) scan?

Did you warm the engine up to normal operating temperature first?

Last edited by ymeski56; Apr 2, 2011 at 05:48 PM.

Apr 2, 2011 | 05:50 PM

#13

ymeski56

Senior Member

Joined: Jul 2008

Posts: 58,557

Likes: 1,165

From: Long Beach Calimexifornia

Quote:

Originally Posted by Just call me Sean

173= oxygen sensor indicates system always rich

I would say to check the fuel pressure first. Engine off, running, bleed down time.

My first thought would be fuel pressure regulator pooched, except for the "Lean" code.

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