on the ram trucks the small electriv fan to the right of the radiator is for the AC, , the actual cooling fan has a clutch--- you can put on an efan but it will have its own temp. control as mikel has said--- you do not have the option to change it since it did not come that way from the factory ...

also check the OBD II connection if the needles on the predator cable are bent/broken it wont hook up=== seems far fetched but a plausible cause--- try to eliminate problems that you can do your self at home first

but what you have to realize is the predator requires a certian amount of voltage in order to remain running to communicate with your PCM/TCM--- if your batt is below that threshold it will not communicate--- same power requirements are also required when you update the unit to the latest CROM update

DSP is emission legal they even tell you that in the manual my state AZ adopted CA emission rules, so i just reset my tune back to stock go thru the emissions and then reprogram. its the only sure fire way to pass unless you have underlying issues that cause you to fail---IE bad O2 sensor messed up ...

agreed on hemis they are a waste they activate the auto shut down relay on mine-- i ran e3s on my old 97 with a 318 with no problem-- but i run champions in my hemi and dont have a problem

If you are wanting a custom tune-- I used TSS for my ram send them both the last tune written and a data log with everything selected and they can create one for you depending on what you are looking for. TSS stands for Tuning Super Store

here is their website the communication is great from them ...

well---first off mine did the same thing when i programmed mine i have an 05 ram hemi--- it was a bad battery--- swapped batteries ran for about an hour before i found out it was a bad alternator. SO with that said i would take the batt and have it tested at autozone or oriley to see if your batt is ...

any tune that you want permentaly modified has to be done thru a CMR dealer--- if its a 1 time change you can modify the parameters before you install the tune. as far as combining tunes --- that would be between you and a CMR dealer to figure out what it is your after. Your PCM will only hold 1 ...

the only way you can physically change multiple tunes at one time is have the CMR software--- other than that you can change the parameters all you want-- but you only can install 1 tune at a time and change the parameters in the tune that is going to be installed. To change mulitple tunes you would ...

if you do the modify stock tune, it will replace your tune already written to the PCM, now if your asking can u change those options in the custom tune, that you would have to find out if the CMR has locked those options out or if they were left alone. Save your custom tune to your PC, as to the ...

I just got my first set of custom tunes from TSS and ran them did very well, am looking to get another set for the MPG Booster tune. TSS was great to work with, fast contact back and forth and polite. Thanks to DS tech guys and the CMR Dealer Tuning Super Store

make sure you have the right power adapter to plug into your predator cause if the voltage is to low it wont update

90mm TB is usless if your still running the stock intake manifold as the opening is 80mm--- best bet as that is concerned is an 83 mm ported---- the predator is a kickass tuner--- i have one for my ram and i have used other tuners hypertech, superchips--- and DS is the best one and has CMR tuners ...

yes you can plug the predator into your port select the tune you want to flash on to the PCM and TCM--- it will ask you if you want to reset the parameters select no, then before you install the tune select modify tune and do the adjustments you want to do with tire size and rev limit in the engine ...

what is your throttle booster set at ?