Posted February 16, 201114 yr Truck started not only hard, but funny,(like having to crack 3 injector lines),but would'nt catch after lines were closed. Checked codes,P0602 came up,cleared,no problem since.What could have caused this?:banghead:
February 22, 201114 yr The 602 is sometimes called the smarty code.It's fine if you have a smarty i get that too.
February 22, 201114 yr Owner Yeah the reason behing the P0602 code is the fact the fueling map is altered and the ECM checks the fueling table and it doesn't match the stock checksum. At least what I've been told...
Truck started not only hard, but funny,(like having to crack 3 injector lines),but would'nt catch after lines were closed. Checked codes,P0602 came up,cleared,no problem since.What could have caused this?:banghead: