Toyota Camry: '90 Camry engine stumbles

I am having a similar problem with my 91 Camry LE. I have also
changed my wires, cap, rotor and plugs in the past year. Here are my
questions to you: 1) Is the pattern of miss the same for all cylinders
as shown by the timing light? 2) Did you make sure that the wires
are not jumping its spark to any ground point in the engine?

I recently passed my emissions test after struggling with several
retests. I think a partial cause of my early failures was because of
a bad distributor cap. BTW, I was failing because of high
hydrocarbons (usually caused by unburned fuel). I will be looking
forward to your progress on this problem.

Al Kondo
 

The "miss" doesn't change if I move the wires around. I'm as certain as I
can be, without sophisticated electronic test equipement, that they are not
shorting or crossfiring. All the cylinders are missfiring and there is no
pattern to it.
I have a Haynes Manual for this engine and it lists many possible causes of
an engine miss, including faulty emissions system components, bad/clogged
injectors, and vacuum leaks. I suspect the ignition system because of my
timing light tests which indicated spark drop out.
I'll be sure to post my progress for those who might have this problem now
or in future.


"Al Kondo" <org> wrote in message
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likely a bad coil

It's possible that the problem isn't in the ignition system. You may want
to take a close look at the intake air boot. Any splits in the boot allows
unmetered air into the engine.


"Kevin Murray" <com> wrote in message
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Would following documents help you?
http://www.autoshop101.com/forms/h39.pdf
http://www.autoshop101.com/forms/h40.pdf
http://www.autoshop101.com/forms/h41.pdf

"Kevin Murray" <com> wrote in message
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