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Re: poor fuel economy
in the beginning, it was throwing out codes p1406 emission cntrol?? and code po336 ckps.
Now, Its giving codes
p0300 Random missfire, possibly sparkplugs and/or wires, im yet to replace these since i got the car, though theres no visable wear.
p1406 emission control??
p0336 crankshaft possition sensor A circuit- range or perfomance problem
p1870 manufacturer control transmission
Light only comes on while driving on the hwy, either after so many miles, or after hitting 65 mph,
I did find an external coolant leak, its not leaking alot, not really even enough to lower my coolant lvl, but it looks like its coming out of the upper exaust manifold gasket, though i have not taken anything apart to prove thats where the leak is, but thats where the coolant is visable.
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