fuel question
#1
fuel question
Just bought an '06 GT w/ 4.6. Filled up with Exxon 87 octane unleaded and noticed decrease in power and engine light came on. OBC-II code said catalytic system was operating below optimum. Manual said to use premium 87 octane. Any suggestions?
#2
I seriously doubt the problem is the gas. Its only a coincidence. Your using the suggested octane for your motor, so its fine.
As for the loss in power and the CEL, those two are related. What was the exact code?
As for the loss in power and the CEL, those two are related. What was the exact code?
#6
Here, let me google that for you.
http://www.obd-codes.com/p0430
Most likely either an exhaust leak or the pre or post cat O2 sensor is bad. Its rare for the cat to go "bad" compared to the other causes, but it does happen.
http://www.obd-codes.com/p0430
Most likely either an exhaust leak or the pre or post cat O2 sensor is bad. Its rare for the cat to go "bad" compared to the other causes, but it does happen.
#7
Exhaust system looks to be in great condition end to end so I don't think I have a hole. Will get my nephew to hook it up to the puter and see about the timing because that's now my prime suspect since this started as soon as I filled the tank. Thanks to all of you for your input.
#8
#10