Discuss 1994 cobra poor idle quality, coil going bad? on AllFordMustangs.com, the place for Mustang enthusiasts.
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i have a 94 cobra i just put a new cap, rotor, autolite Xp preformance plugs gaped at .55, 180 thermostat and a new rad cap, now the car idles rough, before it had a little miss but you could hardley notice it, sometimes the rpms wil go up and down from 800-900 then it will even out a little, any suggestions?
my car wont start I also have a brand new cap and rotor from MSD and the blaster coil ignition and its not making spark, plus the damn IAC is also making the idle very wierd, but try to buy it from FORD for only 166$
Trickflow street heat intakes/Flowmaster american thunder/Pacesetter off road H-pipe/FRPP 9mm spark plug wires/MAC headers/C&L cold air intake/C&L 76mm MAF/K&N air filter/MSD 6AL /MSD coil blaster ignition/MSD cap and rotor/3.73 motive gears/BBK 70mm tb/Eibach pro-kit springs/ Kirban fuel reagulator/BBK underdrive pulleys.
From my knowledge im thinking bad coils only really effect starting conditions and if you have no start conditions it might also be a ignition module or the stator inside the distributor.. as far as idle surging i bought one of those iac spacer for my 94 cobra and it idles great with a aftermarket cam in it. no surging