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The car holds lock up while cruising. Since the converter I get false solenoid B codes after long trips and it goes into limp mode. But that's a programming issue. I don't think it's a false knock bc I can actually hear it. "ping" and the computer doesn't seem to pick it up as a knock. I don't think it retards the timin when this happens. I tried to data record the event with my Mac mentor( I'm a dealer tech for 12 years for Chrysler) but it won't get the event. So all I can figure is its a thinning of fuel when in closed loop under high load at high rpm my short term fuel trim is less than 3% and long term is +1-2% so it's not crazy lean. I don't feel like the EGR is causing any issues and can't tell if there's and carbon buildup. But if there was it should knock under open loop as well as closed unless the spark advance is way different. I need a tuning guy to chime in if possible.
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