Car popped an P0302 code a few weeks ago and have replaced the spark plug, coil pack, fuel injector, and intake manifold gaskets. When I reset the PCM the car will run fine misfire is gone rough idle is gone for as long as it runs. If I tunr the car off for an hour and restart it pops the same P0302 code. This leads me to beleive its not a compression issue but could use any help you can offer.
What makes this problem better or worse?
Resetting the PCM makes the problem go away temporarily
How long has your 2014 Chrysler 200 had this problem?
RepairPal Certified shops can diagnose and repair your 2014 Chrysler 200. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Have you checked base engine compression? Because if you've replaced everything -- that's all that's left! Unless new plug, coil, injector, etc are not OK? There is no cryptic thing going on here. Perform compression and leak down test as needed.
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