Cummins turbo diesel question.

[86lance]

What kind of map sensor is on these things? 2 bar 2.5 3 bar? I believe the truck is an 89 or 90 approxiamtely.

Thanks!

[86lance]

bumpity

[DeckSetter]

Does it even have one? It was my understanding all the 12 valve trucks are all mechanical and unwastegated, and I couldn't find a listing for one on the Advance Auto Parts website. Crank up the fuel and the boost goes up to whatever it wants to.

[shadow88]

Yes the 24 valves both 98 1/2 +up and the common rail cummins do have a map sensor. It does not read vacuum at all because the diesel engine doesn't make any. I've personally seen on drb3's display that they can read 72psi. For the record, they start at 14.7 psi (idle or no load)

[86lance]

so nothing older than 98 has a map sensor then im taking it.

[shadow88]

Nope, completely mechanical aside from a pressure tube that goes into the injection pump for additional fuel delivery. But it isn't electronic.

[MOPAR2YA]

All VE and P7100 pump trucks are non MAP trucks.

[moparzrule]

It was my understanding all the 12 valve trucks are all mechanical and unwastegated, and I couldn't find a listing for one on the Advance Auto Parts website. Crank up the fuel and the boost goes up to whatever it wants to.

Only 88-93 trucks were non wastegated and have the VE injection pump. 94-98 have the P7100 pump and have the 12cm wastegated housings. No MAP sensor, the only electronic thing on 88-98 truck is the fuel shutoff selenoid.