Dodge magnum 2006 Rt Went into limp mode won’t let me go past 40 mph ..... went ahead and added some JBA Longtubes soon as mufflers where done took it back home to install “Diablosport Predator 2 tuner” after tuner reseted everything car won’t accelerate..... throwing codes p0700 p1644

 

You first need to address those codes.....

 

thanks for the reply man .... Thing is I didn’t have these codes till after installing tune.... car was working perfectly fine and my cluster before was P R N D now it’s P R N D 8 .....

 

Can you revert it back to stock? Who did the tunes?

 

yes called Diablosport and they said to install stock tune file again . Didn’t fix the problem . Car still stuck in limp mode throwing codes p0700 & P1644 . It’s the dealership right now... hopefully they can find the fix I will keep you updated