Hello everyone, I have a question for any one that is familiar with the work on mercedes Sprinter year 2002. A set code p0730. I don't know much about the van, owner said he took van for a glow plug change and had the following done in 8 months. All 4 glow plugs, all 4 injectors, fuel tank, fuel pump, fuel rail, ecu, wire harness in engine bay, now keep in mind he went in for a glow plug code and swap. Now after all those parts and about 7k he got the van back and drove fine for about 3 days and now goes into limp mode and code p0730. If he stops and turns key off and waits about a minute then he can drive again normally. Normally happens at highway speeds and does not changes to a higher gear and  Rev limiter at around 2500 rpm to 3000 rpm he said. I did not drive the van and I don't work on diesel engines. But since he's a friend I said I'll ask around for any information, I'll test the wiring and sensors but I'm having trouble finding wire diagrams, alldata and Mitchel1 does not have that year in their data base. Any thoughts or does any one have a wire diagram for the transmission speed sensor and location? Thank you.