p0300 cause

Asked by Philip May 29, 2015 at 03:48 PM about the 2001 Toyota Camry CE

Question type: Maintenance & Repair

car will not idle. random misfires on all cylinders

2 Answers

migration_Lastchance... answered 8 years ago

Does this vehicle have an EGR Valve? It may be hung open. Check the Emissions Label under the hood of the car. The label should show the location of the EGR valve and any vacuum and or wiring attached to it. Get back to us.

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Reelin68 answered 8 years ago

http://engine-codes.com/p0300_toyota.html You will have some work ahead of you trying to figure this out. You may want to invest in a spark tester light. It clips onto the wires and lights up every time the plug fires. They make a similar light to test your injectors also. I would put in new plugs then test the wires. A bad Crankshaft Position sensor will also cause a misfire, which I didn't see mentioned in the above link. But there should have been a code for a bad CPS.

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