omaharam

I have been using the Diablosport Predator. But, I had been using it before and dynoed 547 - which I was actually dissapointed with, so I don't know if there was an issue then or not. Regardless, I had the exact same mods on/in and we added 90hp ddp sticks, got her running and strapped to the dyno and that's when I got the 460 max problem. It certainly could be the Predator, but I had some other issues going on as well. So I am hoping that once they are resolved - next week (fingers crossed) - that the ecm won't be upset about things and let me make some power. Otherwise I probably have a screwed up ecm.

cquestad

Are you sure it was not the stick change?

cquestad

Maybe it is the ECM...if it happens exactley at 460 EVERYTIME...

Time to get a new one...ouch.

Speed Shift

They said $150 for the sensor...

omaharam

Not 100% sure it's not injector related. Sent bodies to Don to be tested and get some flux tips. Yeah, Yeah, you don't have to say it. Anyway, don't really expect that to solve the problem unfortunately. It runs fine and makes good power to that point and then just goes flat. It almost has to be the ecm. What I'm hoping though, is that maybe something injector related (or tranny related - had some work done there too that should now be resolved) was causing the ecm to go into a partial limp mode without showing a CEL. According to a contact John has at Cummins, the ecm could possibly do that.

cquestad

Glad you finally saw the light... ;-)

Anyways...I am betting electronics if it is RPM fixed...

Doe it do it in 3rd at the same RPM?

omaharam

That's dynoing in 3rd. Didn't occur to us to try in 4th to see if anything changed. Guess I don't know why that would matter.

OT-OF-Here

Omaharam,

Let's stay in touch on this and if you find a solution then let me know and I will do the same. Very frustrating.

omaharam

No problem. I'm taking the truck back to John this weekend for him to work on next week. Once the Fluxs are in and the new VB is on, we'll see where it's at. If it is still dynoing low at that point, I have to start doing research on ecm options I guess.