Idle surging in a '92 Toyota Celica GT

Joined: Jan 12, 2007 Posts: 2

I've tried a few things. Replacing the air filter, checking vacuum hoses and spark plugs. The engine gives out on startup sometimes. This problem first showed up about a week ago.

Any idea what I should do next?

External Since: Jun 02, 2006 Posts: 4627

"RedLesPaul" wrote in message

> I've tried a few things. Replacing the air filter, checking vacuum
> hoses and spark plugs. The engine gives out on startup sometimes. This
> problem first showed up about a week ago.
>
> Any idea what I should do next?
>

Check for holes or cracks in the black plastic pipe between the air filter
and the throttle body.

Check the distributor cap and rotor, check ignition timing, check base idle
speed.

Disconnect and plug the vacuum hose to the EGR valve and see if the surging
goes away. If it does, check EGR operation.

--

Ray O
(correct punctuation to reply)