racerfox

iTrader: (4)

the code says 1-4 upshift malfuction any ideas?
it happend after i installed some tsp headers and y pipe

2001NBMZ28

Skip shift solenoid control circuit (CAGS) code. Maybe the connector is loose or the harness is arcing somewhere? Just for the heck of it see if the ENG SEN fuse is blown, usually throws another code but it's on the same circuit.