O2 sensors? - TriStateTuners.com :: Home of Tristate Auto Enthusiast

180sxDrifter · 02-25-2006, 12:44 AM

thier are what i believe to be 3 O2 sensors on the header of my KA24DE and I can't get two of them off so I can put my new headers on.. anyone know what size wrench to use or what? we tried metric and standard & everything was eaither to big or too small

TehWagon · 02-25-2006, 10:23 AM

i know for my car you need a special 02 socket... try sears.

180sxDrifter · 02-26-2006, 01:57 AM

na i can get that normal O2 sensor out.. its these two other like lines that go to the headers no clue what they are lol im assuming thier O2 sensors but yea its not the one ur thinken of

specVogel · 02-26-2006, 04:21 AM

i dont know about that exact engine, but if there are lines running to the header they might be lines for an egr system. they should be metric.

highmilehatch · 02-28-2006, 09:26 AM

Make sure you spray the hell out of it with some penetrating solvent before trying to remove.

silver05bullet · 02-28-2006, 10:36 AM

definitely use crc solvent on them to loosen them up a bit, not really sure on the size if you dont have a wrench that works try using an adjustable one

**auk113** · 02-28-2006, 12:55 PM

ok on 240s there are 2 O2 and 1 EGr

headers have 1 O2 and
1 EGR tube that tube is ether a 23mm or a 27mm

TehWagon · 02-28-2006, 12:57 PM

egr? i thought it was egt? or am i being dense?

awdlaserbeam · 02-28-2006, 01:08 PM

egr is for emissions egt measures exhaust temperature

Bryan · 03-09-2006, 05:38 PM

If the engine is OBDI there is only one o2 sensor, the other two parts on the exhaust will be the AIV which should be below the o2 sensor I believe, and the EGR which will be closer to the top.

glyph · 03-15-2006, 12:21 PM

EGR - exhaust gas return this is the pipe that should come off the exhaust manifold back to the intake system
EGT - exhaust gas temperature - just what it sounds like, the temperature of the exhaust gases (not usually measured without aftermarket gauges)

Use an adjustable wrench. That's what I do.

180sxDrifter · 03-15-2006, 04:55 PM

lol they are stuck in, I had a guy at the shop try and do it and he tried everything i did and more, I have to cut them off and get new ones for it to work

glyph · 03-15-2006, 06:50 PM

Have you tried the PB blaster/break free products?

180sxDrifter · 03-15-2006, 11:03 PM

yes, and heating it up, trust me everything has been tried, professional advice was to cut it off and get new ones lol

cburwell · 03-15-2006, 11:38 PM

I used a 22MM open ended wrench on mine. I had one person pull/turn the heaer in on direction while I tuned the wrench in another. You can also use the O2 sensor socket, and a pipe on the end of the ratchet oth get some extra leverage.

02-25-2006, 12:44 AM	#1
180sxDrifter Tri-State Post Whore Join Date: Jun 2005 Location: ドリフト天国 Member #585 My Ride: 06 STI, S13 Silvia, Ruckus iTrader: (3)	O2 sensors? thier are what i believe to be 3 O2 sensors on the header of my KA24DE and I can't get two of them off so I can put my new headers on.. anyone know what size wrench to use or what? we tried metric and standard & everything was eaither to big or too small __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. 06 Sti-Built motor....stock turbo 89 S13-aero, Silvia front coupe blah blah blah

02-26-2006, 01:57 AM	#3
180sxDrifter Tri-State Post Whore Join Date: Jun 2005 Location: ドリフト天国 Member #585 My Ride: 06 STI, S13 Silvia, Ruckus iTrader: (3)	na i can get that normal O2 sensor out.. its these two other like lines that go to the headers no clue what they are lol im assuming thier O2 sensors but yea its not the one ur thinken of __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. 06 Sti-Built motor....stock turbo 89 S13-aero, Silvia front coupe blah blah blah

02-28-2006, 09:26 AM	#5
highmilehatch Tri-State Addict Join Date: Oct 2005 Location: PA Member #929 iTrader: (3)	Make sure you spray the hell out of it with some penetrating solvent before trying to remove. __________________ 92 SC300 - 2JZGTE 93 Civic Si - 11.3@125 stock block pump gas FOR SALE

02-28-2006, 10:36 AM	#6
silver05bullet Tri-State Addict Join Date: Nov 2005 Location: Jerzey Son Member #1084 iTrader: (0)	definitely use crc solvent on them to loosen them up a bit, not really sure on the size if you dont have a wrench that works try using an adjustable one __________________ 666 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

02-28-2006, 12:55 PM	#7
auk113 Administrator Admin Join Date: Jan 2005 Location: Feastervilly/NE Philly Member #89 iTrader: (1)	ok on 240s there are 2 O2 and 1 EGr headers have 1 O2 and 1 EGR tube that tube is ether a 23mm or a 27mm __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

02-26-2006, 04:21 AM	#4
specVogel Tri-State Addict Join Date: Aug 2005 Location: your mama's house, starting a small fire in her panties Member #712 My Ride: 02 Nissan Sentra Spec 5 iTrader: (0)	i dont know about that exact engine, but if there are lines running to the header they might be lines for an egr system. they should be metric.

02-28-2006, 01:08 PM	#9
awdlaserbeam Tri-State Aficionado Join Date: Dec 2005 Member #1126 iTrader: (0)	egr is for emissions egt measures exhaust temperature

03-09-2006, 05:38 PM	#10
Bryan Tri-State Aficionado Join Date: Jan 2006 Location: Harrisburg, PA Member #1228 iTrader: (0)	If the engine is OBDI there is only one o2 sensor, the other two parts on the exhaust will be the AIV which should be below the o2 sensor I believe, and the EGR which will be closer to the top.

03-15-2006, 12:21 PM	#11
glyph Tri-State Aficionado Join Date: Oct 2005 Location: Lumberton, NJ Member #977 iTrader: (0)	EGR - exhaust gas return this is the pipe that should come off the exhaust manifold back to the intake system EGT - exhaust gas temperature - just what it sounds like, the temperature of the exhaust gases (not usually measured without aftermarket gauges) Use an adjustable wrench. That's what I do. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. -- To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-15-2006, 04:55 PM	#12
180sxDrifter Tri-State Post Whore Join Date: Jun 2005 Location: ドリフト天国 Member #585 My Ride: 06 STI, S13 Silvia, Ruckus iTrader: (3)	lol they are stuck in, I had a guy at the shop try and do it and he tried everything i did and more, I have to cut them off and get new ones for it to work __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. 06 Sti-Built motor....stock turbo 89 S13-aero, Silvia front coupe blah blah blah

03-15-2006, 06:50 PM	#13
glyph Tri-State Aficionado Join Date: Oct 2005 Location: Lumberton, NJ Member #977 iTrader: (0)	Have you tried the PB blaster/break free products? __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. -- To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-15-2006, 11:03 PM	#14
180sxDrifter Tri-State Post Whore Join Date: Jun 2005 Location: ドリフト天国 Member #585 My Ride: 06 STI, S13 Silvia, Ruckus iTrader: (3)	yes, and heating it up, trust me everything has been tried, professional advice was to cut it off and get new ones lol __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. 06 Sti-Built motor....stock turbo 89 S13-aero, Silvia front coupe blah blah blah

03-15-2006, 11:38 PM	#15
cburwell Tri-State Post Whore Join Date: Apr 2005 Member #303 iTrader: (0)	I used a 22MM open ended wrench on mine. I had one person pull/turn the heaer in on direction while I tuned the wrench in another. You can also use the O2 sensor socket, and a pipe on the end of the ratchet oth get some extra leverage. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. - To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. "The Corvette took nearly 25 years to sell 500,000 units; the Z does it in fewer than 10."

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