LibertyCRD wrote:
RedRock wrote:
LibertyCRD wrote:
I'm very much debating the HOT tune myself. As far as I know, my CRD is bone stock. But I don't really notice the shudder with this one, so perhaps the TC was upgraded already? (I bought this one at 75K miles). Maybe I should just go for the HOT tune. Question: Will you see the same MPG improvement with the HOT tune that you do with the ECO tune, if driving style is the same? Are there other negatives to the HOT tune?
Considering you are buying horsepower and torque, the Hot tune is a steal compared to the Eco tune. Go buy a heavy truck, same engine, upgrade the HP and torque and you spend more money for nothing more then the flash. As a CRD owner with both tunes, you can definitely feel the low end torque in the Hot tuned Jeep. It feels very commanding compared to the Eco tune, my wife with little mechanical knowledge, loves how the Hot tuned Jeep gets her into traffic. Mileage should remain the same with both tunes, it all depends on how much you wanna step on the skinny pedal. When I first put in the Hot tune, I was blown away by the acceleration, sort of like Mad Max compared to the Eco tune with a cloud of black smoke out the exhaust. I even managed to get a P0193 that was related to high pressures in the rail. But I had to flog the hell out of it to get such a DTC. I never got the code again, because I did not drive like Mad Max any more
Here is the output of the DTC stored code:
Freeze Frame
Parameter Description Value
DTC for which Freeze Frame was Stored P0193
Calculated LOAD Value 0.00 %
Engine Coolant Temp -40 °C
Intake Manifold Absolute Pressure 25 kPa
Engine RPM 0 rpm
Vehicle Speed Sensor 0 km/h
Intake Air Temperature -40 °C
Air Flow Rate Mass Air Flow Sensor 0.00 g/s
Fuel Rail Pressure 179200 kPa
Do I like the hot tune? Yes, will I be sending in the Eco ECM in for an upgrade? Yes, as soon as Keith does a major revision and gives us "high idle abilities"

I will go for the upgrade. And Keith we appreciate your work and will pay for any added features, at least I will
