did you check the o2 sensor not sure if you have to mess with it or not
>From: Alex Harris <jetcity@swbell.net>
>Reply-To: dakota-truck@buffnet.net
>To: DML <dakota-truck@buffnet.net>
>Subject: DML: Aaagh! JBA install problems, please help! (long)
>Date: Sat, 06 Jan 2001 16:32:09 -0600
>
>Okay, something has gone afoul with my header installation, so please bear
>with me here as I really need some help.
>
>The manifolds came off and the headers went on without a hitch. The problem
>was when I got around to trying to hook them up to the Y-pipe.
>
>First of all, I absolutely could NOT get them to fit using those rings that
>came with the headers. I tried for an hour just to get one side to go on,
>prying, beating, banging, and it wasn't happening. It looked like it mated
>up pretty well without the rings -- and the manifolds don't have rings --
>so
>I thought, "well, I'll put 'em on without the rings and see what happens."
>
>I got everything reassembled, started the truck up, and it ran like crap.
>On
>my 8 mile drive home from my friend's driveway, here's the symptoms I got:
>
>1) Runs very rough (seemed to get a tad smoother as I drove longer)
>
>2) No power
>
>3) Backfiring on acceleration from stop and deceleration near stop
>(deceleration backfiring maybe got less over the course of the drive)
>
>4) Check engine light came on twice. I did the code-pulling thing and got:
>P0351, P0300, P0304, P0306. I tried looking up trouble codes on the web,
>but
>all I found were 2-digit codes, so I don't know what these mean.
>
>Are these problems all common to an exhaust leak, or does it sound like
>something else might be amiss? Are you supposed to use those rings without
>fail (I bought the headers used, so I had no instructions and JBA is closed
>on weekends).
>
>Some thoughts: I did goop up the collectors with hi-temp gasket. It was
>cold
>out (45) so it might have solidified too much before I got it assembled,
>and
>I'm thinking this could be a recipe for an instant leak. Could the problem
>be as simple as this?
>
>Also, I'm 99% sure I got the plug wires back the way they were supposed to
>go, but if I switched a couple would that account for these symptoms (my
>thoughts say yes). I'm positive at least one joint is leaking, but would
>that account for the engine being rough and shaky?
>
>Sorry for the long post and my ignorance, but my truck is practically
>non-driveable and I need to know what to do. The worst part was when I
>stopped at a gas station and some guy in a shiny new (and CLEAN) Toyota
>Tacoma looked at my dirty, backfiring Dak like it was a disgusting piece of
>junk. I guess it was, though... sigh.
>
>Thanks for any suggestions!!!
>
>
>- Alex
>'00 RC SLT V6 5-Speed
>Profile: http://www.twistedbits.net/WWWProfile/dakota/SxokV7hSrtCVk
>
>
>
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