Question Asked: After driving in traffic on a hot day it runs rough and PO302 code comes up.
August 25, 2013, 10:43 AM
Runs fine, let it sit for 20min then start & it runs rough & PO302 pops up. Turn it off let cool down for awhile & then its fine. Replaced coil, plugs & wires and fuel filter. No overheating, temp gauge is good. Could it a intake manifold gasket leak or bad fuel injector? Only happens after driving in traffic on hot day, runs fine, shut it off for 20min then start up & rough idle & PO302 code.