Vrooom...sput sput....wtf?

Special Ed · 02-25-2004, 10:06 AM

i put a few mods on my jeep, 4.0 t-body and t-body spacer, K&N intake (not filter ,intake), flowmaster 50 series...various other stuff, now when its at idle it sputters sometimes,like misses, and when im driving and floor it, it feels like its holding back, then when i let up it goes normal

also i dont have a 02 sensor hooked up could this be part of it? should i get a rock it parts adjustable map and cps?

im not getting anycodes besides the 02 sensor

surfzup2k · 02-25-2004, 10:08 AM

Hook the o2 sensor up man.

It is there for a reason. It's absense is why your jeep is running like crap.

Special Ed · 02-25-2004, 10:15 AM

well when i replaced the motor i got the exhaust work done manifold back by a local shop, who didnt but the o2 bung on there because i guess he thought it went on the manifold...anwyas i dont live there anymore so i cant take it back to them...but what i was thinking of doing is findin a nut that the o2 sensor screws into, drilling a hold in the pipe, and use that exhaust sealer crap to seal the nut to the pipe

if that not a good idea, how much should i expect to pay for a o2 bung welded on?

texan · 02-25-2004, 11:58 AM

any good welder shouldn't charge you more than 20 bucks. simple, simple job for an experianced welder.

BamaJeeper · 02-25-2004, 12:07 PM

It's not gonna stay unless it's welded and it will still run like crap if you try to "glue" it in. Why go cheap on this? You did'nt with the engine mods.

LoOpY · 02-25-2004, 03:35 PM

to re-itterate what the others are saying, any exhaust shop should be able to do it pretty cheap.

the reason you want it in? O2 sensors (pre '96) are there to fine tune your fuel injector pulse width. If you have the sensor wired up but just dangling there, its reading excessively lean and therefore youd be running too fat, specially in cold weather.

02-25-2004, 10:08 AM	#2
surfzup2k Registered User Join Date: Apr 2003 Posts: 413 Profile Gallery Classifieds My Jeeps iTrader Rating	Hook the o2 sensor up man. It is there for a reason. It's absense is why your jeep is running like crap. __________________ 1995 YJ 4x4 4.0 5-Speed 35x14.50x15 SS Terdbirds 4" Skyjacker lift 2" hd shackles locked 8.8 Rearend 4.56's cut fender flares pics... http://www.imagestation.com/album/?id=4289103901 [COLOR=white]White Jeep Club Member #112[/COLOR]

02-25-2004, 10:15 AM	#3
Special Ed Registered User Join Date: Jan 2004 Posts: 111 Profile Gallery Classifieds My Jeeps iTrader Rating	well when i replaced the motor i got the exhaust work done manifold back by a local shop, who didnt but the o2 bung on there because i guess he thought it went on the manifold...anwyas i dont live there anymore so i cant take it back to them...but what i was thinking of doing is findin a nut that the o2 sensor screws into, drilling a hold in the pipe, and use that exhaust sealer crap to seal the nut to the pipe if that not a good idea, how much should i expect to pay for a o2 bung welded on? __________________ [COLOR=darkolivegreen]1995 YJ Rio Grande 2.5L 5sp 5.5" of lift/ the "no fender mod"/ Rhino Lined tub & flares/ RE SYE w/ Tom Woods shaft/Plenty of mods to come![/COLOR] [COLOR=red]Need 2.5L parts? Email me Pimpinatspiveys@aol.com[/COLOR]

02-25-2004, 12:07 PM	#5
BamaJeeper Registered User Join Date: Jan 2003 Location: Alabama Posts: 1,466 Profile Gallery Classifieds My Jeeps iTrader Rating	It's not gonna stay unless it's welded and it will still run like crap if you try to "glue" it in. Why go cheap on this? You did'nt with the engine mods. __________________ Out of the darkness comes light. Last edited by BamaJeeper : 02-26-2004 at 05:53 AM.

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02-25-2004, 11:58 AM	#4
texan Registered User Join Date: Feb 2004 Location: Houston, Texas Posts: 26 Profile Gallery Classifieds My Jeeps iTrader Rating	any good welder shouldn't charge you more than 20 bucks. simple, simple job for an experianced welder.

02-25-2004, 03:35 PM	#6
LoOpY Registered User Join Date: Apr 2002 Location: Green Bay, WI Posts: 891 Profile Gallery Classifieds My Jeeps iTrader Rating	to re-itterate what the others are saying, any exhaust shop should be able to do it pretty cheap. the reason you want it in? O2 sensors (pre '96) are there to fine tune your fuel injector pulse width. If you have the sensor wired up but just dangling there, its reading excessively lean and therefore youd be running too fat, specially in cold weather.