Me78569

Datalog a bulk of it. Make sure to do the commands at set intervals a set number of times so you can isolate better.

I dont have codes for the truck, but are you able to use something like terra term to log what is on the bus?

sounds like it can't find the vehicle profile. Have you tried opening the app while on wifi, but not connected to the unit under the hood?

vp doesn't care about injector size

Id go with bigger injectors 125's are about right for a stock turbo with a mindful driver some quality 6 x .013's would be my choice.

The tst is smart enough to know what truck it is

if you just want more meat down low then you only need to work through steps 1 and 2. Can bus fueling is your sliders for fuel for 0-30 psi I am guessing you will be happy if you add 5 or 10 % from 0 psi to 10 psi.

Did you work through these 5 steps in that article?

Have you worked through the tuning article? The lower section has a how to. Mainly if you want more bottom end add more fuel.

Map is toast then.

5 to 4.5v steady

.4 v at idle is way to low. it should be near 4.5v at idle. Your map sensor is hosed if your truck is giving 4.5v to the sensor.

I think your ecm is shutting down randomly.

what bus are you reading when it losses communication?

do you gauges die on the dash when the engine turns off? sure sounds like the ecm or pcm is shutting off.

P0606 is ecm failure.

A stock turbo, he351cw, or a hx35/40 hybrid. 100's dont give you that much extra fuel to light a bigger turbo. 7 x .010's are a better injector as they give you enough fuel to spool a 62 mm sized turbo. A box 66 turbo is a terrible match for a vp44 truck. You would need much bigger injectors to even consider lighting it. Even then it wouldnt start to light until after 2000 rpm.

Just normal v2. Then you load your custom tune on top. Also 100 hp injectors and a 66 will be a terrible setup.

Something changed when the op messed with the wastegate. Egts were lower prior, wastegate was messed with, and now egts are higher. Do boost leak tests. It sounds like you bumped something.

You can specify what tune you want loaded on shipping. Could have been a mix up there. I would call them and talk to them. They will make it right.

Reading 0 on build date means you dont have v2

Stop and go kills mileage. It does not hesitate to hit 20 mpg at 75 mph straight highway, but actual city driving you can't expect that.

Yea 12 mpg city is not that far off base. We are getting 14 combined in our 2018 since we bought it

Please datalog the issue.

Datalog the issue please. V2 tuning or older tuning? Have you done a boost leak test? Whos injectors?