[Shotimes] Need Help With Codes

[shewitt5656@cs.com]

Michael,

Did you reset the computer after installing the y-pipe?  Did you swap the O2 sensors from front bank to back bank, even accidentally?  (Or left and right banks for Jim! :)

I suspect the O2's changed the way they perform and the computer is compensating for the way they ran before the new y-pipe.  I would first try resetting the computer - follow the procedure on the FAQ (www.shotimes.com) and see if that makes a difference.  As good routine maintenance, the O2's should be changed at 60k intervals, so new ones wouldn't hurt either, depending on your mileage.

Let us know what happens, as many people roll thru shotimes with problems and we never hear about the resolution.

Not one of the 'experts' - except when it comes to beer,
Scot Hewitt
95 Red MTX - 66k
Lewiston, NY

"Urbain, Michael  H." <michael.urbain@baesystems.com> wrote:

>Need some help please.  Here's the deal:
>
>I have a 92 that has been running great.  I recently installed a SHOSHOP
>Y-Pipe to my Dynomax catback (no other engine mods except K&N and removed
>cone) and my "check engine" light is now on.  I suspect the 02 sensors but I
>wanted to double check anyway, so I ran some codes.  This is the first time
>I've done this and I came up with a couple of wacky ones so I might have to
>run them again, but here goes:
>
>KOEO - 172, 176, and 542 - According to the list this indicates that my
>system is running lean and a fuel pump secondary circuit failure.  What
>would cause this and what needs to be replaced/repaired?
>
>KOER - 361 and 721 - these are the wacky ones.  Anybody ever seen these?
>
>Now I can tell you that there is a strong gas smell so I suspected that I
>was running rich, but maybe it's lean.  Would the 02 sensors cause this?
>Also, my gas mileage may have dropped slightly which is also an 02 sensor
>failure indicator.
>
>I'm looking forward to hearing back from you experts!!
>
>TIA
>
>Michael Urbain
>'92 Black
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