[turboeeyore]

has anyone ever had performance problems on a stock stang and found it to be a ecm wire or coil? i'm loosing power but the engine runs great but you can feel it in the pedal.all the sensors are pretty new and it's a speed density car, it seems like one minute its ok, the nex i have no response..no coolant loss or in the oil...i'm baffled.

 

[meangreen92]

Could be alot of things. Check the vacuum line to the MAP. Make sure it isn't leaking.

 

[turboeeyore]

really??

could the map itself be dead? i've checked for a leak with gauge and see no leak.my ecm wont do koer test for some reason, maybe cause f/p is disconnected and hooked to switch?(88 lincoln lsc 5.0 ho engine, wiring d9s speed density ecm)