high RPM pop...backfire

94snake · 02-20-2008, 01:10 PM

ok people it seems like one problem after the other.... got the car to idle great ( an IAC). The car did sit for a couple of months but i pulled it out of the garage again. The car cruises around town great, but when i jump on it (any gear) it pulls like a mad man till 4800-5000rpms and then pops or backfires .... used to pull to 6500 all day...so i popped in new autolite plugs gapped at .54 and dumped the oil..... same result..... i do get an engine light from time to time but it never stays on longer than a minute or so and then turns off

any IDEAS?

goodyear1984 · 09-21-2008, 12:56 PM

the code should be stored in computer i would scan it and see what code u get

02-20-2008, 01:10 PM	#1
94snake Registered Member Join Date: Nov 2002 Location: Panama City Fl. Posts: 152	high RPM pop...backfire ok people it seems like one problem after the other.... got the car to idle great ( an IAC). The car did sit for a couple of months but i pulled it out of the garage again. The car cruises around town great, but when i jump on it (any gear) it pulls like a mad man till 4800-5000rpms and then pops or backfires .... used to pull to 6500 all day...so i popped in new autolite plugs gapped at .54 and dumped the oil..... same result..... i do get an engine light from time to time but it never stays on longer than a minute or so and then turns off any IDEAS?

09-21-2008, 12:56 PM	#2
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: high RPM pop...backfire the code should be stored in computer i would scan it and see what code u get __________________ 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

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