Wrapper

"Robbo" <robbo71@usadatanet.net> wrote in message
news:MtWdnfLZPfcvzhHYnZ2dnUVZ_r-onZ2d@usadatanet.net...[color=blue]
> Get this, truck will not idle once put into gear but when in park/neutral
> idle is up so high the truck jumps into gear hard and then nearly stalls
> out. Once you hit the gas, even slightly, the truck will take right off
> until it's time to stop at a light or stop sign, which makes it nearly
> stall
> again no matter how warm the engine is(gotta throw it in neutral to stay
> running). I plugged in the bypass on the diagnostic and the "check engine"
> light just repeatedly blinks 11 times one right after another, pauses,
> then
> blinks 11 times again. Book says code 11 is a ECM but why would the thing
> drive all day long once the gas is applied?[/color]

I found some different info for your code 11.

11 Switch signal - neutral start switch on (22R-E) or IDL point in
throttle position sensor is off during diagnostic check.

Sounds like you have a bad TPS or it may just need adjusting.


It used to never stall out at a[color=blue]
> stop but up until a couple days ago it has started to stall, so I cranked
> up
> the idle with the air-screw and the throttle-stop screw but it didn't help
> much, it now surges like crazy. Did moving either one of them mess
> something
> else up?[/color]

Yep, set them back to were they were. The throttle stop screw will change
the TPS setting, which would also cause the code 11.



This thing has never idled smooth since I bought it but always ran[color=blue]
> at a stop without shaking me out of the seat, unlike now. Could a fuel
> pump
> do this?[/color]

Nope.

That's about all that hasn't been replaced on it as of now. Truck[color=blue]
> has a completely new exhaust from front to back, new plugs/wires, etc and
> still will not idle good. The "check engine" light doesn't come on except
> when first started but then goes right out so it seems not to be whipping
> up
> any faults, amazing considering the way it runs rough at an idle. This
> thing
> is really starting to get annoying, especially with the auto tranny, at
> least with a stick I could clutch the problem right out of it. Anyone else
> have a similar problem or is this machine "unique"? Oh yeah, the stock,
> in-dash temp gauge is bypassed and a mechanical aftermarket was installed,
> weird thing is the truck only runs at 160 degrees but when warming up it
> can
> hit 220 but then drop like a rock and never climb past 165-170 no matter
> how
> hard I beat on it, which has been a lot lately:)[/color]

What degree thermostat do you have? I believe it should be a 190 - 195. If
the thermostat is too cold the engine may not go into closed loop and this
may affect the idle as well. Also, how accurate is the aftermarket guage?


Is this a normal Toyota[color=blue]
> problem too?? It's been a good truck other than this, just keeps on
> going...even when "broken"....180,000 miles and counting!
>[/color]

Put all the adjustments you have fooled with back to were they should be
and adjust the TPS first. It's possible the TPS is bad but that should show
up when you try to adjust it.

Also, when was the last time the valves were adjusted. Improper valve
adjustment could also cause a poor idle.