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From: Bubba on 14 Feb 2007 06:30
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.


From: Larry on 14 Feb 2007 07:52

"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.
>

Check out this web site http://www.obd-codes.com/

Finding out what each code means can be an experience non the less, but
sounds as if you might have a crank or cam position sensor that is going
out. One faulty sensor can cause many trouble codes but you need to look for
the obvious first. Check for any vacuum leaks then look for any connections
that might have come loose.

One last thing, you didn't say if your Tundra was a V6 or a V8. The 4.7L V8
is an interference engine and needs to have the timing belt replaced at
90,000 miles. If the belt breaks, it could cause a valve to be forced into
the top of a piston causing major engine damage. MTCW.

Larry


From: RG on 14 Feb 2007 09:16

"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.


Could the Cat Converter be clogged?

Best regards,

Rich
www.guytronix.com


From: Mike on 14 Feb 2007 10:25

"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

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.


From: Jeff Strickland on 14 Feb 2007 11:16

"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 8 Misfire Detected

P0320
Ignition/Distributor Engine Speed Input Circuit Malfunction

P0340
Camshaft Position Sensor Circuit Malfunction


Since you reported changing plugs recently, I'd be looking for a wire
related to the distributor, either on the control side (first guess) or on
the firing side. The distributor is telling the computer that it is not in
the right position, among other things. I'm thinking you might have yanked
something that is between the distributor and the computer (as opposed to
between the distributor and the plugs).

There is a good chance the distributor itself -- or an internal part -- is
toast. The Cam Shaft Position Sensor lives inside the distributor and gives
data relative to speed and location. Since this appears in two codes, P0320
and P0340, I'd start looking for this first, and the P0308 should fall into
place. (If there is a signal error for speed and location, the result could
be a misfire.)

You report two codes that are Toyota specific, and I haven't a resource for
them. As a general rule, any code that is P1nnn is vehicle specific, codes
that are common among all vehicles are P0nnn.


Try this link,
http://autorepair.about.com/cs/troubleshooting/l/bl_obd_main.htm






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