running no O2 sensors for a couple dayz?

stanger8172 · 10-10-2001, 10:55 PM

I installed an off road H and don't have any O2 sensors in due to some snags along the way. If I drive up to 2000rpm's is this o.k. for a couple days? Is it running too lean? thanx.

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'91 LX convertible , T-5,Centerforce Dual Friction, FMS adjustable cable w/quadrant, ported/polished/milled E7 heads, 1.6rr, 1.94/1.60 stainless valves, March Performance Pulleys and A/C Eliminator

ttopmustanggt88 · 10-11-2001, 11:31 AM

i wouldnt do it i wouldnt even start it. i did that with mine and it fugged everyting up. just wait a few days and get o2 sensors. trust me.

jz_mustang50 · 10-11-2001, 12:15 PM

Just go aheaed and run it. If they're not there at all, its like they're bad. Cars run all the time with bad o2's... maybe just not too good. I know other people that have mustangs and they don't run o2's at all, on their stock computer, and they're happy with it. They dont seem to think they're loosing preformace (but i think they are). But it runs fine for driving around town, maybe not too good in the 1/4.

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Joe Zemaitis, Grand Rapids Michigan

1991 Mustang GT. Mods to date: 4.10 rear end, new POSI, aluminum driveshaft, AOD w/ shift kit, 2 1/2 off road h-pipe, 2 1/2 flowmasters and 2 1/2 tail pipes. Electric fan, Removed air pump and egr tube. Hotchkins upper and lower control arms. New energy suspension rear busings. Hoosier Quick Time Pro 27x10.5x15 and bolt on subframes soon to be welded. Everything else is STOCK. Totally stock ENGINE. 14.29@96 with 130k miles.

GodStang · 10-11-2001, 12:58 PM

Half the cars mess up half are fine. I think it is luck of the draw. I have friends that had them die over time and I have had some that are great. Two days should be alright. Do not go too long. Most likly to run lean.

stanger8172 · 10-11-2001, 09:59 PM

I just installed one O2 sensor. The other one will go on tomorrow cause it's pay day! Can't wait till it's all said and done so I can run this bad boy.

Godstang & JZ_ Mustang,

I guess I got lucky with my ride cause it runs fine at low rpm with no O2's. The plugs aren't even fouled. Take it easy!

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'91 LX convertible , T-5,Centerforce Dual Friction, FMS adjustable cable w/quadrant, ported/polished/milled E7 heads, 1.6rr, 1.94/1.60 stainless valves, BBK 1 5/8" equal length shorties, 2 1/2" off road H-pipe, Summit 2 1/2" catback, March Performance Pulleys and A/C Eliminator

USMC302 · 10-15-2001, 04:04 PM

I have also heard that running lean helps blow head gaskets.

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88LX NOTCH 5.0, TFS Twisted Wedge Aluminum heads, 2.02 1.60 valves, BBK shorties unequal 1 5/8, off road H-pipe, Flowmasters, Drag lites, custom grind cam, solid motormounts, Aluminum Driveshaft, BBK springs, lakewood 90/10 50/50 shocks, BBK upper and lower control arms, 4.10 gears, centerforce DF clutch, adjustable BBK clutch cable with aluminum quadrant, Billet Steel flywheel, 70mm Acufab Throttle Body,MAC cold fender mount induction, K&N, 3 core radiator, flex-lite-fan, custom hardened push-

10-10-2001, 10:55 PM	#1
stanger8172 Registered Member Join Date: Nov 2000 Location: Milwaukee,Wisconsin Posts: 380	running no O2 sensors for a couple dayz? I installed an off road H and don't have any O2 sensors in due to some snags along the way. If I drive up to 2000rpm's is this o.k. for a couple days? Is it running too lean? thanx. ------------------ '91 LX convertible , T-5,Centerforce Dual Friction, FMS adjustable cable w/quadrant, ported/polished/milled E7 heads, 1.6rr, 1.94/1.60 stainless valves, March Performance Pulleys and A/C Eliminator

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10-11-2001, 11:31 AM	#2
ttopmustanggt88 Registered Member Join Date: Sep 2001 Location: st.peters mo usa Posts: 7	i wouldnt do it i wouldnt even start it. i did that with mine and it fugged everyting up. just wait a few days and get o2 sensors. trust me.

10-11-2001, 12:15 PM	#3
jz_mustang50 Registered Member Join Date: Sep 2001 Location: Grand Rapids, Michigan, USA Posts: 50	Just go aheaed and run it. If they're not there at all, its like they're bad. Cars run all the time with bad o2's... maybe just not too good. I know other people that have mustangs and they don't run o2's at all, on their stock computer, and they're happy with it. They dont seem to think they're loosing preformace (but i think they are). But it runs fine for driving around town, maybe not too good in the 1/4. ------------------ Joe Zemaitis, Grand Rapids Michigan 1991 Mustang GT. Mods to date: 4.10 rear end, new POSI, aluminum driveshaft, AOD w/ shift kit, 2 1/2 off road h-pipe, 2 1/2 flowmasters and 2 1/2 tail pipes. Electric fan, Removed air pump and egr tube. Hotchkins upper and lower control arms. New energy suspension rear busings. Hoosier Quick Time Pro 27x10.5x15 and bolt on subframes soon to be welded. Everything else is STOCK. Totally stock ENGINE. 14.29@96 with 130k miles.

10-11-2001, 12:58 PM	#4
GodStang College Stanger Join Date: May 1999 Location: Aiken,south carolina, usa Posts: 1,097	Half the cars mess up half are fine. I think it is luck of the draw. I have friends that had them die over time and I have had some that are great. Two days should be alright. Do not go too long. Most likly to run lean.

10-11-2001, 09:59 PM	#5
stanger8172 Registered Member Join Date: Nov 2000 Location: Milwaukee,Wisconsin Posts: 380	I just installed one O2 sensor. The other one will go on tomorrow cause it's pay day! Can't wait till it's all said and done so I can run this bad boy. Godstang & JZ_ Mustang, I guess I got lucky with my ride cause it runs fine at low rpm with no O2's. The plugs aren't even fouled. Take it easy! ------------------ '91 LX convertible , T-5,Centerforce Dual Friction, FMS adjustable cable w/quadrant, ported/polished/milled E7 heads, 1.6rr, 1.94/1.60 stainless valves, BBK 1 5/8" equal length shorties, 2 1/2" off road H-pipe, Summit 2 1/2" catback, March Performance Pulleys and A/C Eliminator

10-15-2001, 04:04 PM	#6
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	I have also heard that running lean helps blow head gaskets. ------------------ 88LX NOTCH 5.0, TFS Twisted Wedge Aluminum heads, 2.02 1.60 valves, BBK shorties unequal 1 5/8, off road H-pipe, Flowmasters, Drag lites, custom grind cam, solid motormounts, Aluminum Driveshaft, BBK springs, lakewood 90/10 50/50 shocks, BBK upper and lower control arms, 4.10 gears, centerforce DF clutch, adjustable BBK clutch cable with aluminum quadrant, Billet Steel flywheel, 70mm Acufab Throttle Body,MAC cold fender mount induction, K&N, 3 core radiator, flex-lite-fan, custom hardened push-