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1weirdone · 09-06-2001, 04:11 PM

i have a 91 mustang gt with bbk underdrive pullys,70mm throttle body,bbk shorty headers,off road hpipe,flowmasters,cold air induction,cobra intake,30lp injectors 190 intank fuel pump,3;73 gears,. i just installed a powerdyne 9psi supercharger.now i am having trouble with the car not wanting to idle. it will start and run great but when left to idle it goes from 1100rpm down to 400rpm back and forth until it shuts off. called powerdyne even took to a ford mastertech cannot find a problem.any ideas would be greatly appreciated.

09-06-2001, 04:11 PM	#1
1weirdone Registered Member Join Date: Sep 2001 Location: akron,ohio Posts: 7	supercharged 5.0 l i have a 91 mustang gt with bbk underdrive pullys,70mm throttle body,bbk shorty headers,off road hpipe,flowmasters,cold air induction,cobra intake,30lp injectors 190 intank fuel pump,3;73 gears,. i just installed a powerdyne 9psi supercharger.now i am having trouble with the car not wanting to idle. it will start and run great but when left to idle it goes from 1100rpm down to 400rpm back and forth until it shuts off. called powerdyne even took to a ford mastertech cannot find a problem.any ideas would be greatly appreciated.