'88 Supra stumbles on warm start

'88 Supra stumbles on warm start

1988 Canadian model Supra. Replaced leaky filler neck, and now when the
engine is warm the car stumbles or stalls on start. Doesn't appear to be
soot coming from tailpipe. Rev the engine a couple times and it smooths
out. Pulled the EFI fuse but that did not work. Disconnect the cols start
injector?

Re: '88 Supra stumbles on warm start



hachiroku wrote:
> 1988 Canadian model Supra. Replaced leaky filler neck, and now when
> the engine is warm the car stumbles or stalls on start. Doesn't
> appear to be soot coming from tailpipe. Rev the engine a couple times
> and it smooths out. Pulled the EFI fuse but that did not work.
> Disconnect the cols start injector?

Check the filter?
* w w w .hipcow . com /p/0003/relevant advice please/

Re: '88 Supra stumbles on warm start

On Tue, 22 Apr 2008 23:09:21 -0500, wstiefer wrote:

>
>
> hachiroku wrote:
>> 1988 Canadian model Supra. Replaced leaky filler neck, and now when the
>> engine is warm the car stumbles or stalls on start. Doesn't appear to be
>> soot coming from tailpipe. Rev the engine a couple times and it smooths
>> out. Pulled the EFI fuse but that did not work. Disconnect the cols
>> start injector?
>
> Check the filter?
> * w w w .hipcow . com /p/0003/relevant advice please/

Sure I have! It's there! ;)

It only does it warm. The filter is above the rear diff, behind the fuel
tank. I have had the fuel tank out three times now. We have NEVER been
able to loosen the fittings for the filter, they're rusted solid. So, I'm
really hoping it's not that.

My other thought is to cut the filter out, replace it with fuel line and
move the filter to a more accessible location...

Re: '88 Supra stumbles on warm start


"hachiroku" <Trueno@ae86.GTS> wrote in message
news:pan.2008.04.22.12.58.00.906000@ae86.GTS...
> 1988 Canadian model Supra. Replaced leaky filler neck, and now when the
> engine is warm the car stumbles or stalls on start. Doesn't appear to be
> soot coming from tailpipe. Rev the engine a couple times and it smooths
> out. Pulled the EFI fuse but that did not work. Disconnect the cols start
> injector?
>

Make sure the distributor ignition timing advance is working.

Check for vacuum leaks. You should have at least 14 in Hg at idle.

If disconnecting the cold start injector clears up the stumble, make sure it
is not getting voltage after the engine has started. If it is not and
disconnecting it clears up the stumble, the injector is leaking.
--

Ray O
(correct punctuation to reply)