my liberty engine is shaking and knocking with codes of 101 112 and 303 any idea of some fixes thanks it has 65000 miles thanks

P0101 = mass air flow sensor
P0112 = intake temp sensor, this is the sensor on top of the air filter box
P0303 = cyl #3 misfire, could be related to the first two or maybe not
Fix the first two, clear the codes, then see if any codes come back.

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U.S. Army Retired

The first 2 are often related to loose plug connections at the sensor.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs