'92 Camry floods when starting warm

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Old 04 Sep 2006, 04:48 pm   #1 (permalink)
Steve F
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Default '92 Camry floods when starting warm

Just finished replacing the head gaskets on my 3VZ-FE. Had the heads
inspected and shaved. Also changed the timing belt and plugs, wires, cap and
rotor while I was at it. Noticed poor starting when warm. Suspected the
timing belt was out so I checked that and ok. Ignition timing at 10 degrees
w jumper in place - ok. Changed fuel filter. Also have checked coolant temp
sensor, throttle position sensor, cold start valve and sensor. All within
spec. MAF sensor is an old style swing gate valve and does have small dead
spots through the swing. (I'm going to look at replacement but don't believe
it is used during startup so don't think it's part of this problem.) Air
intake temp sensor - built into the MAF unit - is also testing ok. IAC valve
also functioning.

Toyota put the car on their computer and say all systems are within
parameters. He suspected poor fuel. (It was premium and besides I'm on to
tank #2 now.) Since I smell raw gas when this happens, it seems that not
enough air is getting into the engine. Looked at the throttle pull off and
noticed it was barely increasing/decreasing rpm's to 950 rpms. I adjusted up
to 1200 rpm's. I think it helped a little but I'm running out of ideas.
Starts on cold start up are fine and it starts ok when very hot. Probably is
hot enough to start even though it is flooding. Give it 1 or 2 hours to cool
tho and it's a real struggle. Yesterday while it was struggling to start I
hit the pedal and it fired right up. Oh yah... it's not throwing any codes.

Anyone have any ideas???? Much appreciated.....


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Old 05 Sep 2006, 04:10 pm   #2 (permalink)
Daniel
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Default Re: '92 Camry floods when starting warm

Steve F wrote:
> Anyone have any ideas???? Much appreciated.....

==============================
I'd be trying fuel injector service, guessing the injectors are leaking
a bit after shut down causing an over rich condition when trying to re
start warm.
As an effective alternate, I like Red Line complete fuel system
cleaner, but would not try substituting another brand. No solvents in
the RLCFSC and extensive testing.
One bottle would be a reasonable cost compared to all of the other work
you've already done. Just a spec of contaminant could prevent the
pintel from closing fully allowing some fuel still under pressure in
the fuel rail to leak into the cylinder while the car is sitting for
those two hours.

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Old 06 Sep 2006, 07:35 pm   #3 (permalink)
mac1833
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Default Re: '92 Camry floods when starting warm

How much was machined from the head? Is it to spec or past it...if so you
have to adjust your cam...it no longer will sit at mark if too much was
taken off. IF ok suspect bad TPS with no codes.

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Old 10 Sep 2006, 09:19 am   #4 (permalink)
Steve F
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Default Re: '92 Camry floods when starting warm

Head was only warped .001" so they shaved a couple of thou' to correct that
and also to get rid of the gasket imprint. On my car the Throttle Position
Sensor can throw codes but it hasn't. I also have checked the TPS resistance
at different throttle settings and it is within spec's.


"mac1833" <mcdanielport@yahoo.com> wrote in message
news:34115a18efdd5c44431ff9c3ce4f56b0@localhost.ta lkaboutautos.com...
> How much was machined from the head? Is it to spec or past it...if so you
> have to adjust your cam...it no longer will sit at mark if too much was
> taken off. IF ok suspect bad TPS with no codes.
>



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