This is not my truck, its a friends truck so heres the run down.

2005 4x4 Auto. Full Suncoast trans, 110 nozzles, AFE, B1 Bomber turbo, Hellman Perf IC, MP8, TST.

We've been running the BullyDog Triple Dog for awhile, then switched over to the Smarty. Now we are trying the TST/MP8 stack. Fuels good down low with TST on "03 Twins" 6x4 and MP8 on 100%. Kinda drops off Mid to upper top end which I feel is fuel related since there are no cp3 mods. But there is an additional helper pump. Anyway tonight during our testing we threw these codes. 0148 - High Pressure in rail and 0606- ECM Hardware error. We cleared the codes with the Smarty and ran it again with the same codes under hard accel. Tomorrow we will run the by-pass connector in the TST and slowly trace the problem. Has anyone running this stack ran into these codes? Has anyone ran into these codes period? I just need a good place to start looking for the problem or what may be causing it. The MP8 is plugged in first, then the TST. It also surges under light to medium acceleration. Any suggestions?

 

You may want to turn down the TS MP8 since it does increase pressure in the rails by a considerable margin. I would cut it down to 60%, you will still get a nice bottom end boost. If you TST does pressure I would try and turn that down too, I don't know if you can do that or not....

 

I agree that I would turn down the TST TE number some and the MP-8. With TST/EZ stack I can't really set the TST above 6/2, EZ on 2(45hp) with the 03TT program or I start draining the rail and popping on the top end.

With the sticks it will change some tuning for sure, but probably make it harder to run higher numbers with stock cp3.