Having similar problems. With check engine light on, I stopped by AutoZone and they told me the following.


P0335 crank shaft pos sensor A malfunction
P0175 bank 1 too rich
P0172 bank 2 too rich
P0221 peddle throttle position malfunction pending

Since I went with the NW CAI a few years back, I'm wondering if I need to put the stock on and take it to dealer as a wrap warranty. Any suggestions?