Little big mack

Problem fixed. Ended up being metal clip refusing to hold sensor plug. Thank you again mack pro greatly appreciated

Thank you mack pro for the information.

Mines doing it with engine running when i push on the decel button and key in on position. Takes alittle longer to start maybe 5 seconds instead of the first 3 or 4 roll overs

Forgot to mention installed new trans and new sensor on tail shaft of tranny. Could that sensor be off a tad bit bc the old one broke trying to take off old tranny

Thank you mackpro. I had a feeling you were going to say that. Just put new clutch and resurfaced flywheel. But didnt touch the sensor with anything other than wiping old grease out

Hopefully you can help me out. Boost pressure wont build over 30lbs on aset 460. Do see the turbo speed sensor green wire has some wear through but i wrapped in electrical tape for time being. Not throwing any codes tho. But the reason im asking is i have a 3-2 code with if you push mode and reset at same time on dash is 5022-02 m128. Code means engine speed sensor but which one. I just replace both 2months ago and i only have one spare and hoping its not the bellhousing bc its a bitch. Also can it feel like truck is in limp mode. Still kinda new at understanding mack.but im some mechanically inclined

Also there is no muffler just straight pipe

Alright I'll check it out mack pro thank you and get back to you.

I don't know where to start new to this stuff. Majority of the time truck won't build over 22 to 25 pounds of boost. Sounds like the waste gate is sticking open. I used to have 35 psi. Ive had fault code 4-5 pop up on the lighting bolt. Mack told me it was my turbo speed senor replaced it. Ran good for about 2 days and back to tail between its legs. Turbo is fairly new. Motor was rebuilt about 80000mi ago. I've replaced fuel pump, number 1 unit pump, and had them do a ride along loaded with logs and can't figure anything out. Fuel pressure was between 80 to 90 I believe if I'm not mistaken. Need help with problem. Also could it be the VGT air solenoid located on driver side of motor?