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Check Engine Soon Light
I GOT A ENGINE LIGHT, P0303 - #3 CYN MISFIRE
2002 Dodge Dakota
July, 31, 2012 AT 1:15 AM
I have don't nothing yet just used my obdII scanner to get the code. Can it be spark plug, rotor and cap? I don't have compress gage and other compress gages.
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July, 31, 2012 AT 1:25 AM
Start with a compression test. It sould be that, plug, coil, vacuum leak or injector. This is why you need a real diag before throwing parts at it.
July, 31, 2012 AT 1:34 AM
Do I need a compression Tester and which cyn hole? #3? How do I do a compression test?
July, 31, 2012 AT 2:16 AM
Remove the plug. Unplug all coils. Crank engine with tester installed and read the readings for us
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