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From: abioli on 5 Mar 2007 00:31
Jeff , i was reading your post and have a 2000 tundra also with 81k
miles on it. It also started giving me a misfire. you can detect it
at idle and with a load on it, but it seems to diminish at a higher
RPM. It gave me a P0300 code and showed a random multiple cylinder
misfire and showed cylinders 1,3,4 & 8 as misfiring. any suggestions?

"Jeff Strickland" wrote:
> "Mike" <mik(a)localnet.com> wrote in message
> news:VRFAh.2720$B25.1168(a)news01.roc.ny...
> >
> > "Bubba" <bfunke(a)nospam.jcs.mil> wrote in message
> > news:45d2f2ed$0$28136$4c368faf(a)roadrunner.com...
> >> Yesterday my Tundra suddenly lost power and running poorly.
> Starts fine
> >> and runs ok while sitting still. Misses under load. ODB
> II multiple
> >> codes P0308 P1340 P1320 P1310 P1305. Spark plugs were
> changed about 2K
> >> miles ago. Truck has 100K miles. Any ideas.
> >>
> >
> >
> > P0308 = Cylinder #7 misfire
> >
> KEYSTROKE ERROR
> That's Cylinder #8 misfire for that code.
>
>
>
>
>
> > P1305 = Igniter circuit malfunction # 2
> >
> > P1310 = Igniter circuit malfunction # 3
> >
> > P1320 = Igniter circuit malfunction # 5
> >
> > P1340 = Igniter circuit malfunction # 8
> >
> >
> > The P0308 code is a misfire on cyl # 7. The other 4 codes
> indicate a
> > problem with the coils not firing. This could indicate a
> problem with the
> > coils, wiring or ECM.
> >
> > You mentioned spark plugs were changed, what brand plugs
> were used ? Was
> > the vehicle missing on the original plugs ? If it only
> misses under load
> > I would look at spark plug boots, plug wires and/or coils.
> >

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