P0304,P0306 and P0300 Codes
01-16-2013, 02:10 AM
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2001 C320
P0304,P0306 and P0300 Codes
Hello i have a 2001 C320. I was driving today 
and i check engine light came up. So i quickly stopped by AutoZone and the run the "Check Engine Light" Give me 3 codes. P0304, P0306 and P0300. I looked it up its cylinder 4 and 6. But idk how this happened because i changed my spark plugs like a month ago and the car was driving good. Can some one help me what can possibly needed to be fixed. I am new to this Forms. Thank you for your time guys.
and i check engine light came up. So i quickly stopped by AutoZone and the run the "Check Engine Light" Give me 3 codes. P0304, P0306 and P0300. I looked it up its cylinder 4 and 6. But idk how this happened because i changed my spark plugs like a month ago and the car was driving good. Can some one help me what can possibly needed to be fixed. I am new to this Forms. Thank you for your time guys.
01-16-2013, 06:31 AM
#2
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If the plugs are new then it's wires or coilpacks. I would start on a 2001 by replacing the plug wires.
Misfires cylinders 4 & 6.
Misfires cylinders 4 & 6.
01-16-2013, 02:11 PM
#4
Check if your valve cover is leaking down to where the spark plugs are.
Remove the plugs (After checking for oil down there, and if there is some, you should try to blow it out) and inspect them.
Do you feel that your car is weak now? Shaking like hell? Two cylinders missing should really mess things up.
Remove the plugs (After checking for oil down there, and if there is some, you should try to blow it out) and inspect them.
Do you feel that your car is weak now? Shaking like hell? Two cylinders missing should really mess things up.
01-16-2013, 07:35 PM
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Ok, so i went to the junk ward today and pulled out spark plugs wires from a ML class. exact same ones. As i got home i installed them and the car runs smooth now. So far so good will see how things are. Now i need helping turnong the check engine light off. IDK how
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01-17-2013, 10:23 AM
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Good news. The CEL should go out on it's own after a while. Otherwise cancel with an OBDII scanner.
01-18-2013, 09:27 PM
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Hello again, so the check Engine Light is not turning off!! how do i clear it? idk what is the OBDII scanner is. Os there any other ways to clear it?
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01-19-2013, 06:43 AM
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The only way to cancel codes if the CEL does not auto extinguish is via the OBDII port under a flap under the steering column with a Star computer at the dealer or with an OBDII scanner.
This is an OBDII scanner. They vary in price from $50 to about $300. You local Auto parts store might loan you one.
This is an OBDII scanner. They vary in price from $50 to about $300. You local Auto parts store might loan you one.
01-20-2013, 02:01 AM
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Problem solved. Started my car this morning and the check engine light went off. So happy:-D Thank you for all your wonderful help
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