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    Overdrive on or off while racing?

    I always leave it on. Have a 98 GT with the 4r70w auto transmission, a FRPP Heavy Duty transmission cooler and Trans-go shift kit. Also have the firmness maxed using the Diablosport Predator. I heard somewhere that leaving overdrive on burns it out when racing? Does this stand true even though i...
  2. S

    Fuel Pressure Regulator

    How can i tell if the one in my 1998 mustang gt is defective? I took the vaccum line off and it smells like gas a little bit but not a lot.
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    Profile Ignition Pickup

    Have had idle problems with my car for a few weeks now, an interesting thing to note is that when i have my diablosport predator hooked up to it the PROFILE IGNition Pickup keeps reading on and off, on and off. Shouldn't it stay either ON or OFF? What controls this and is this normal?
  4. S

    PROFILE IGNITION PICKUP

    Have had idle problems with my car for a few weeks now, an interesting thing to note is that when i have my diablosport predator hooked up to it the PROFILE IGNition Pickup keeps reading on and off, on and off. Shouldn't it stay either ON or OFF? What controls this and is this normal?
  5. S

    98 Mustang GT...Running rough, tailpipes black with soot

    My car was perfect up until a few weeks ago. My car is modified with the following: Mac CAI, FRPP 70mm Throttle Body, BBK Intake Plenum, FRPP PI Intake Manifold, Mac Off-road h-pipe,Flowmaster super 40 catback, Trans-go shift kit, Diablosport predator tuner premium fuel tune. I have my rear o2...
  6. S

    Idle rough all of a sudden!

    I'm coming up on 100,000 miles and my car was perfect. Idle was smooth and precise. All of a sudden I got on it a little and now my idle is rough. I have changed the plugs using stock motorcraft, wires using FRPP 9MM and the coil packs. I have also cleaned the MAF, temp sensor and idle air...
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