what do you clean on map? I took mine out and it looked clean. Where is Ias located? Recetly had some trouble so I changed the fuel filter, couple days later wouldn't start. Had Edge box on so I removed it, started right up. Had no code reader and couldn't borrow one so I had to buy one. The reader that I bought had a blank cd enclosed so I had to exchange that. Got a 0336, 0234 and 0336 code. Ordered a crank sensor and installed. Cleared the codes and engine light went out. Truck ran a little better. Checked intercooler connections and wastegate all seeming ok. Checked codes still got 0234/0236. removed maps to ck. Put 300 miles on Sunday didnt fillup yet but codes still there today. Tried to buy a map but parts house would have to order. They told me about $100.00 to order it. I thought I read some prices on here for less through a cummins dealer.