I bought a truck that had an SPD Cat (don't know the year model) with a 6nz single turbo conversion. Overhauled 115,000 miles ago. Had it derating me, smoking blue, and just overall powerless. Brought it to a mechanic/tuner who put a new delete program in it, and replaced 2 injectors. Worked good for two weeks after that, and now it's back to powerless, derating but no blue smoke. And it comes and goes but can always rely on it to fail when pulling something. One of the many strange experiences I had with it this week was, I was headed to a place to pick up a trailer, started shaking and derated me, so I turned around headed back to the shop, worked great heading back. Have that happen more than once.
Derating on SDP single turbo conversion
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by J.N.W, Oct 9, 2021.
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
my sdp did sorta the same thing. would shake really bad and not boost over 20psi when i would step on it, empty or loaded. with the twins and a single turbo it did the same thing. never figured it out as it sits on a pallet now
its probably a vva/iva issue - i always thought mine was! good luck
J.N.W Thanks this. -
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
