Question about 2003 Saturn VUE
Miss firein engine ,, possibly cyclinder 5 and 6.... most likely coil pack
Posted on Nov 24, 2013
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Posted on Jan 02, 2017
SOURCE: trouble codes for saturn ls2
P0300 Multiple Cylinder Misfire Detected
P0306 Cylinder 6 Misfire Detected
P0451 EVAP Pressure Sensor Range/Performance
I have no idea what those last two are. Typo, maybe?
Your first two codes could be caused by old spark plugs and/or leaking plug wires.
Your EVAP code could be a bad fuel tank pressure sensor or a malfunctioning EVAP system. With that code, if you remove your fuel cap and get a whoosing sound, then it is an issue with your EVAP system not properly venting the tank. If you don't get that sound, then the tank pressure sensor is bad.
Posted on Mar 05, 2010
300 is random misfire and 306 is cylinder #6, I would check the coil pack on #6. If it has separate coils per cyliner, swap the coil, see if the misfire goes to that cylinder. If it does replace the coil.
If it has three coil packs you can still swap the coils. If that doesn't fix your problem, then you will have to check the injector with an ohm meter. resistance between the prongs should be between 11 to 15 ohms. check another injector and they should be relatively close. Let me know
Posted on Nov 09, 2010
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