P0300 code
Thread Starter
Melting Slicks
Joined: Aug 2005
Posts: 2,993
Likes: 61
From: Fort Wayne IN
P0300 code
Shortly after filling up with premium the car started missing and the check engine light started flashing. I suspect bad gas, either crap or water or both. What's the easiest way to check the fuel? Or to drain the entire tank? If the injectors are clogged is there a way to tell? And how are these cleaned?
Many questions but I appreciate any and all input.
Many questions but I appreciate any and all input.
Drifting
Joined: Apr 2007
Posts: 1,496
Likes: 1
From: LEBANON PA.
P0300 code
HI There,
This code means multiple cylinder misfires. If your car was running fine before you filled up & then after fill up displayed the code and started running rough I agree with you that the gas has water in it.I would buy a couple of bottles of dry gas & add both or maybe three of them.You will have to put some miles on until it removes the water from the tank. Don't buy the type that contains ethanol not good for plastic fuel lines which the c5 has.When all the water is gone & your running good take the car to auto zone( etc.) & they will delete the check engine light for free, then delete the code from your DIC.A fuel filter change is recommended.
Keep us informed of your progress.
robsc501
This code means multiple cylinder misfires. If your car was running fine before you filled up & then after fill up displayed the code and started running rough I agree with you that the gas has water in it.I would buy a couple of bottles of dry gas & add both or maybe three of them.You will have to put some miles on until it removes the water from the tank. Don't buy the type that contains ethanol not good for plastic fuel lines which the c5 has.When all the water is gone & your running good take the car to auto zone( etc.) & they will delete the check engine light for free, then delete the code from your DIC.A fuel filter change is recommended.
Keep us informed of your progress.
robsc501
Last edited by robsc501; Apr 18, 2008 at 09:04 PM. Reason: additional info.
