My was truck parked for few days for the holidays, then I got in and I got a check engine light and that pesky code po122 keeps showing up(3rd time) although truck running by all indications outstanding put 45 miles on it with both city and highway with zero problems. Anybody out there got any ideas? I certanily don't wish to buy a new APPS unit but I don't wish to get stuck somwhere in the boonys either. TIA 6naline01 ... ... ... Mike: 
