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Old 04-09-2012, 11:00 PM   #6
Brian R.
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Re: 91 Camry Problems

Not in any particular order:

Check your ECM to see if there are any diagnostic codes

Check coolant level

Are your plugs wet with fuel?

Check cold-start injector time switch - may not turn off injector

Check to see if your brakes are dragging.

Check for vacuum leaks in your intake system or pcv system.

Check egr valve to see if it is staying open

Check your air filter

Are your ignition components DENSO or NGK brand? Many ignition components are substandard for use in Toyotas.

Check your ignition timing

Check your cylinder compression

Check the following sensors:
Air flow meter
Coolant temperature sensor
Inlet air temperature sensor
Throttle position sensor

Download service manual:
http://dc303.4shared.com/download/M9..._Camry_FSM.zip
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