still bogging

snakebite8 · September 19th, 2009, 05:40 PM

ok i have replaced the rad, the fuel pump, the #8 coil. i have all the air out of the lines. but the computer on it at my cousins ford dealership. but the car still boggs when the supercharger hits on. runs fine nutil i hit the gas and the boost starts to go up. the computer said #8 coil so i replaced that. the plugs r only 6thousand miles old. i cant seem to fix the problem. any help please.. also my buddy has a 03 conv cobra to, having the same problem. same bogging issue.

nutnbutcustm · September 19th, 2009, 11:07 PM

maybe a vacuum issue?

or possibly a boost bleed valve issue?

snakebite8 · September 22nd, 2009, 08:29 PM

will look into that thanks anything else comes to mind let me know.

nutnbutcustm · September 23rd, 2009, 12:46 AM

also post the dtc's that are coming up on the scanner it also could be that your not getting enough fuel to accomidate the air that the s/c is forcing in.i would say maf but if that were malfunctioning it would definately send a dtc, pull the codes again and post them,that will help come up with more ideas.

Trick Tuners · September 23rd, 2009, 11:51 AM

Its probably the returnless fuel pump hesitation issue. Datalog the fuel pressure and i bet it drops below 20 when it bogs.

nutnbutcustm · September 25th, 2009, 12:32 AM

ever figure it out?

snakebite8 · October 4th, 2009, 10:39 AM

sparkplugs yup. new ones in the car runs awesome.. i dont know what was wrong with the old ones. they did not look bad and the gaps where fine. but the car runs great. called my budy told him and he replaced his and his car runs like new to.

Aceman74 · October 5th, 2009, 12:46 AM

Did you close the gap down on them so you dont blow out the spark?

September 19th, 2009, 05:40 PM	#1
snakebite8 Regular 2003 mustang cobra 11.98 Join Date: Apr 2009 Location: nj Posts: 154 iTrader: 0 reviews	still bogging ok i have replaced the rad, the fuel pump, the #8 coil. i have all the air out of the lines. but the computer on it at my cousins ford dealership. but the car still boggs when the supercharger hits on. runs fine nutil i hit the gas and the boost starts to go up. the computer said #8 coil so i replaced that. the plugs r only 6thousand miles old. i cant seem to fix the problem. any help please.. also my buddy has a 03 conv cobra to, having the same problem. same bogging issue. __________________ have some mustang parts for sale, z3 mustang fenders for 99-04 mustang new still in primer, tv sun visors for 94-04 mustang.

September 19th, 2009, 11:07 PM	#2
nutnbutcustm Regular 2001 Cobra/03'termi swap ...@..... Join Date: Sep 2007 Location: Houston,TX Posts: 169 iTrader: 0 reviews	maybe a vacuum issue? or possibly a boost bleed valve issue? __________________ Termi swap,6spd,Spec 3 clutch,Steigmeir stage 3 ported blower,Big Moroso heat exchanger,ported heads,Sean Hyland CAMS,Billetflow 2.76 pulley,JLT power pipe,injectors,rails,full Magnaflow exhaust,Longtubes.

September 22nd, 2009, 08:29 PM	#3
snakebite8 Regular 2003 mustang cobra 11.98 Join Date: Apr 2009 Location: nj Posts: 154 iTrader: 0 reviews	will look into that thanks anything else comes to mind let me know. __________________ have some mustang parts for sale, z3 mustang fenders for 99-04 mustang new still in primer, tv sun visors for 94-04 mustang.

September 23rd, 2009, 12:46 AM	#4
nutnbutcustm Regular 2001 Cobra/03'termi swap ...@..... Join Date: Sep 2007 Location: Houston,TX Posts: 169 iTrader: 0 reviews	also post the dtc's that are coming up on the scanner it also could be that your not getting enough fuel to accomidate the air that the s/c is forcing in.i would say maf but if that were malfunctioning it would definately send a dtc, pull the codes again and post them,that will help come up with more ideas. __________________ Termi swap,6spd,Spec 3 clutch,Steigmeir stage 3 ported blower,Big Moroso heat exchanger,ported heads,Sean Hyland CAMS,Billetflow 2.76 pulley,JLT power pipe,injectors,rails,full Magnaflow exhaust,Longtubes.

September 23rd, 2009, 11:51 AM	#5
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,467 iTrader: 3 reviews	Its probably the returnless fuel pump hesitation issue. Datalog the fuel pressure and i bet it drops below 20 when it bogs. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

September 25th, 2009, 12:32 AM	#6
nutnbutcustm Regular 2001 Cobra/03'termi swap ...@..... Join Date: Sep 2007 Location: Houston,TX Posts: 169 iTrader: 0 reviews	ever figure it out? __________________ Termi swap,6spd,Spec 3 clutch,Steigmeir stage 3 ported blower,Big Moroso heat exchanger,ported heads,Sean Hyland CAMS,Billetflow 2.76 pulley,JLT power pipe,injectors,rails,full Magnaflow exhaust,Longtubes.

October 4th, 2009, 10:39 AM	#7
snakebite8 Regular 2003 mustang cobra 11.98 Join Date: Apr 2009 Location: nj Posts: 154 iTrader: 0 reviews	sparkplugs yup. new ones in the car runs awesome.. i dont know what was wrong with the old ones. they did not look bad and the gaps where fine. but the car runs great. called my budy told him and he replaced his and his car runs like new to. __________________ have some mustang parts for sale, z3 mustang fenders for 99-04 mustang new still in primer, tv sun visors for 94-04 mustang.

October 5th, 2009, 12:46 AM	#8
Aceman74 Newbie Join Date: Oct 2009 Posts: 6 iTrader: 0 reviews	Did you close the gap down on them so you dont blow out the spark?

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