i have a 02 mc with a s/c complete swap and reflashed pcm for the swap. iv got a p0102 after replacing these parts. new maf,new tps and cleand the iac. thinking it might be the wiring for the maf will be testing that tomarrow.also have p0300 on cyl 1 pulled plug and it looked good so dont understand that. the trans in the car is from a 99 gp witch has the exturnal pnp switch and i found a thread on gmfourm that showed how to wire it up to by pass the inturnal pnp in the trans that the car was wired for in stock fourm after doing that i went to start the car and nothing but the indicater is lit on the dash witch tells me that the pcm knows what gear its in but no cranck unless i jump from a power source in the fuse box to starter.the scaner gave codes p1825 and p0705 while running the scaner shows that the car is in first gear when the indacater on dash shows park. and the car is really in park if you shift it the scaner still says first. dont get it. so if any one has any for sure help for me that would be really nice and pics on the wiring of that pnp switch other than the one on the gm fourm that would be kick axx thanks for help