Lil-j wrote:Ignition coil?
Lil-j wrote:M... found the ignition coil was arcing from where the boot connects to the bracket, bright blue spark. It would it do it at idle, only when I revved it up. .. if by chance there is a crack where the plug wire boot connects to the ignition coil and the spark is jumping to the bracket, it will run like crap how chadwick describes, mine did with the coil still working.
Yes, that is true but, you will not know what that CEL is hiding besides the O2 heater. Often the code can be thrown due to something besides a bad heater. Check the fuses and possibly a relay.Chadwick wrote:Thanks everyone for the replies..................................The reason the SES light is one, per the shop, is that a heater that preheats one of the Oxygen sensors isn't working. They told me not to worry about it as it will be a costly repair and it will only slightly reduce fuel economy while the engine is cold. Once it is at temperature it has no effect......................
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