Not sure how to describe my issue. I'm getting my brothers 2002 Grand Caravan Sport ready for sale. The original engine in the van froze from no oil. The person he bought it from swapped out the whole front sub frame complete with engine, transmission and rack and frame. It was from a low mileage van maybe 99 or 2000. How can I.D. the year of this transplant so I can by the right parts. It's showing three codes PO134, PO443, and P1294. Like if I need the Idle Air Control how will I know what Year to buy. Help please.
