Won't Rev past 1500rpm

[Rawze]

(10-11-2020 )JoshT800 Wrote:  Thanks, but the truck has only 1 speed sensor at the back, I unplugged it and the speedo stopped work. My Brother has an International with the same engine, when i Unplug the speed sensor it won't rev pass 1500 and the speedo won't work too, plug it back in and it's back to normal.

To answer Rawze: I unplugged the diesel particulate filter and it through the check engine light. The truck worked fine for weeks after that. Parked it for about a week and then this issue. Before I bought the truck, I told the company to step up the hp to 500 and make sure the DPF is deleted. I paid them $1200 to do that, but i don't think they did.

I also noticed the turbocharger speed is about 18000rpm at idle, on 1500rpm it's about 52000rpm. Is this normal?

you should assume your delete programming is bad.

Did they also hollow out the DOC and DPF elements 100% open? -- install any block plates? etc.etc?

Do you have laptop with insite and an adapter?

your posts point strongly towards you not knowing much about this subject in general and that leads to someone being taken advantage of and consequently ripped off. 90% odds are against you that your programming is any good. Here is some education for you...
http://rawze.com/forums/showthread.php?t...5#pid13255

We see every week on here all the bad deletes these shops do and people who have gotten taken for all they are worth.

For all you know, the thing may have gone into an rpm derate. You can't just unplug stuff without the engine eventually limiting rpm to penalize you over it, ... and eventually shutting down.

Your on the fast track towards a destroyed engine.. that is the road you on it sounds like to me.