hello, i have 02 yukon denali with radix magan charger, i was driving today with some members and suddenly, the reduce engine power light came on, i had no trouble before and just wondering if anyone had the same problem occur, or what you think might have cause the problem.

I was able to limp home, i just had no power when i push the gas pedal, i did notice that it idle rough,

 

Have you popped the hood to see if the intake tube or MAF has slipped off? Did you get a check engine light?

 

Go to autoclone and get your codes read that may help you solve the problem.

 

I've had that happen a couple of times after testing some throttle body modifications. Clearing the PCM codes fixed it.

 

i have the supercharger for a while and never had an issue like this before, i have wester tune and tune has been on, the same time as the blower, i am just curious why all of sudden this would happen, did i blow something loose or is there something i could do to prevent it from happening again.

 

yeah.. that has happened to me a few times.. i end up just pullin over waitin 5 minutes and its fine.. its so wierd tho... hasnt happened for a while.. would like to kno..

 

I've had the problem pop up from time to time. I know you hear this as a cure all for almost eveything that pops up, but possibly check your throttle body for sticking. Could need cleaning. Cleaning usually isn't as much of an issue with the Radix, as they don't tend to get near as crudded up. If this was a fresh install I would say check the conection to the TPS, then the torque on the throttle body to make sure it isn't binding. I have the same throttle body as you, the older design and had the gears in the throttle body freeze up. GM used a white grease that had dried up. I had to remove the motor and re-grease the gears and everthing worked fine since. With the TPS having a dual path design, too much variation between the throttle peddle and the actual opening of the throttle blade will signal a problem, resulting in the pain in the **** Reduced Power Also the reset time is usally about 30 seconds, so if it does happen again you should't have to wait five minutes. I hope you get it figgured out.

 

Usually a throttle issue (faulty wiring/loose connector/sensor/sticking) or the expected airflow table needs to be bumped up in the tune if it happens under boost. Are you running the tune that came with the Radix kit?

 

no i have a wester tune

 

i took my car to service and they found that my throttle sensor which is located by the firewall went bad, they check the engine, supercharger and they just order the part and will see if that fix the problem, i was taking with my installer and if you have same problem, the sensor could be going back, lack of voltage to the sensor and the computer

will keep you posted when the part arrives.