Need Help Badly

buckneked7719 · 05-24-2009, 02:33 PM

i am having problems with my 92 mustang .it runs good for awhile then it will start to run rough while sitting at stop lights and will sometimes stall .when it does this the idle kinda surges up and down until it dies.when it starts to do this it also will not accelerate properly.it will not take wide open throttle it bogs and wont tach past 4 grand . if you turn it off wait a minute and restart it .its fine and then will eventualy do it again i have taken it to 3 different shops and gotten nowhere.i have replaced the plugs,wires,cap,rotor,ignition module.fuel filter,coil,egr valve,gas cap,checked the timing.replaced the computer with a reman.the check engine light is not on.it is throwing codes 44(AIR MANAGEMENT SYSTEM INOPERATIVE) and code94(SECONDARY AIR SYSTEM INOPERATIVE)one shop said the mass air flow sensor could be going bad.another said the fuel pressure regulator might be going.the throttle position sensor is within specs.ANY HELP WOULD BE APPRECIATED I DONT KNOW WHERE TO GO FROM HERE THANKS

goodyear1984 · 07-24-2009, 06:42 PM

go to a part store and get some maf cleaner and try to clean the maf.u can use brake cleaner but it takes the wax of if u dont do it right.if that fixes it make sure to get a new airfiter or if its a k&n make sure u clean it right

fool4speed · 11-02-2009, 09:39 PM

Your IAC could be bad. Idle Air Control valve on the side of the throttle body...

goodyear1984 · 11-04-2009, 12:23 AM

cannot be a iac that only control idle

goodyear1984 · 11-04-2009, 12:24 AM

what did u set the tps to?whats it at at wot

fool4speed · 11-04-2009, 08:32 PM

It measure's out the idle speed by how much air is flowing(fuel and air). If its stalling out on ya that could be it, but of course I know nothing...Your MAF sensor could be the culpret as well seein how its just up stream from your IAC...

goodyear1984 · 11-14-2009, 11:01 PM

if u listen to what he said you would know thats not an iac problem..also the iac does not measure anything it gets a signal to allow more or less air at idle to get the desired idle speed.

goodyear1984 · 11-14-2009, 11:03 PM

ps the iac motor will never cause a bog concern like he stated,you should read every thing befor u send some one looking in the wrong direction

fool4speed · 11-14-2009, 11:21 PM

My gt was doing the same damn thing and it was the iac. SO, you might need to think about stuff before YOU say it.

goodyear1984 · 11-16-2009, 10:08 PM

read everything he said ,an iac motor wont cause a bog and it wont make the car not go past 4grand.now relax and dont give out info that ur not sure of.people come on here to get help not to replace every part on there car and play a guessing game!

fool4speed · 11-17-2009, 08:21 AM

The all knowing goodyear1984 has spoken...bow your heads in recognition to his greatness...

05-24-2009, 02:33 PM	#1
buckneked7719 Registered Member Join Date: Nov 2008 Posts: 7	Need Help Badly i am having problems with my 92 mustang .it runs good for awhile then it will start to run rough while sitting at stop lights and will sometimes stall .when it does this the idle kinda surges up and down until it dies.when it starts to do this it also will not accelerate properly.it will not take wide open throttle it bogs and wont tach past 4 grand . if you turn it off wait a minute and restart it .its fine and then will eventualy do it again i have taken it to 3 different shops and gotten nowhere.i have replaced the plugs,wires,cap,rotor,ignition module.fuel filter,coil,egr valve,gas cap,checked the timing.replaced the computer with a reman.the check engine light is not on.it is throwing codes 44(AIR MANAGEMENT SYSTEM INOPERATIVE) and code94(SECONDARY AIR SYSTEM INOPERATIVE)one shop said the mass air flow sensor could be going bad.another said the fuel pressure regulator might be going.the throttle position sensor is within specs.ANY HELP WOULD BE APPRECIATED I DONT KNOW WHERE TO GO FROM HERE THANKS

07-24-2009, 06:42 PM	#2
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Need Help Badly go to a part store and get some maf cleaner and try to clean the maf.u can use brake cleaner but it takes the wax of if u dont do it right.if that fixes it make sure to get a new airfiter or if its a k&n make sure u clean it right __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

11-02-2009, 09:39 PM	#3
fool4speed Registered Member Join Date: Oct 2009 Posts: 4	Re: Need Help Badly Your IAC could be bad. Idle Air Control valve on the side of the throttle body...

11-04-2009, 12:23 AM	#4
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Need Help Badly cannot be a iac that only control idle __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

11-04-2009, 12:24 AM	#5
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Need Help Badly what did u set the tps to?whats it at at wot __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

11-04-2009, 08:32 PM	#6
fool4speed Registered Member Join Date: Oct 2009 Posts: 4	Re: Need Help Badly It measure's out the idle speed by how much air is flowing(fuel and air). If its stalling out on ya that could be it, but of course I know nothing...Your MAF sensor could be the culpret as well seein how its just up stream from your IAC...

11-14-2009, 11:01 PM	#7
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Need Help Badly if u listen to what he said you would know thats not an iac problem..also the iac does not measure anything it gets a signal to allow more or less air at idle to get the desired idle speed. __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

11-14-2009, 11:03 PM	#8
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Need Help Badly ps the iac motor will never cause a bog concern like he stated,you should read every thing befor u send some one looking in the wrong direction __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

11-14-2009, 11:21 PM	#9
fool4speed Registered Member Join Date: Oct 2009 Posts: 4	Re: Need Help Badly My gt was doing the same damn thing and it was the iac. SO, you might need to think about stuff before YOU say it.

11-16-2009, 10:08 PM	#10
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Need Help Badly read everything he said ,an iac motor wont cause a bog and it wont make the car not go past 4grand.now relax and dont give out info that ur not sure of.people come on here to get help not to replace every part on there car and play a guessing game! __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

11-17-2009, 08:21 AM	#11
fool4speed Registered Member Join Date: Oct 2009 Posts: 4	Re: Need Help Badly The all knowing goodyear1984 has spoken...bow your heads in recognition to his greatness...

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