Which heated O2 sensor for 89 L98?
01-31-2003, 10:10 PM
#2
Le Mans Master
Re: Which heated O2 sensor for 89 L98? (1MoorTym)
???? Are you rewiring? Stock is single wire. I believe there's been a post or two about adding an ignition feed for a heated sensor so you might want to do a search, but if you're only adding headers, stock should be fine.
02-01-2003, 03:39 AM
#3
Le Mans Master
Re: Which heated O2 sensor for 89 L98? (1MoorTym)
Good for you! Here's the tech tip which I followed:
https://www.corvetteforum.com/techti...D=93&TopicID=2
I just tapped into the wiper motor feed wires and dropped down two 12 gauge wires down to the sensor and slpiced in there again. I can't tell what kind of tranny you have, but if you have the 6 speed, consider mounting the bung on the passenger side collector. Much more room there. Also consider using those nice copper or aluminum gaskets at the head and at the collectors. I just installed them last night. The crappy ones provided with the headers pretty much disintegrated after about a year.
Pull the starter. It is really easy and pass side will go in a little easier. Before pass side header goes in, flatten out a piece of frame that will rub on the primary. I'll go snap a pic in a bit.
***edit, here is pic. My finger is pointing to where contact is occuring:
the red line is where I put a sheet of thin steel to act as a heat shield removed for illustration.
Drill out EGR passage in the header if you're going to use the EGR system.
Protect wiring and looms around the primaries. They will melt if not careful......I speak from experience:cry
Please do yourself a favor and fabricate a brace for the back of the alternator. I didn't. It eventually cracked and broke the alt case from the vibration!
Small hex headed header bolts from "Spectre"(found at Kragen or Autozone Pep boys) worked really well for me.
If wrapping the headers, get 2 rolls. 1 will not do it.....again, I speak from exp:cry
good luck with the install! You wil love the headers!
[Modified by 89 Paul in Cal, 12:57 AM 2/1/2003]
https://www.corvetteforum.com/techti...D=93&TopicID=2
I just tapped into the wiper motor feed wires and dropped down two 12 gauge wires down to the sensor and slpiced in there again. I can't tell what kind of tranny you have, but if you have the 6 speed, consider mounting the bung on the passenger side collector. Much more room there. Also consider using those nice copper or aluminum gaskets at the head and at the collectors. I just installed them last night. The crappy ones provided with the headers pretty much disintegrated after about a year.
Pull the starter. It is really easy and pass side will go in a little easier. Before pass side header goes in, flatten out a piece of frame that will rub on the primary. I'll go snap a pic in a bit.
***edit, here is pic. My finger is pointing to where contact is occuring:
the red line is where I put a sheet of thin steel to act as a heat shield removed for illustration.
Drill out EGR passage in the header if you're going to use the EGR system.
Protect wiring and looms around the primaries. They will melt if not careful......I speak from experience:cry
Please do yourself a favor and fabricate a brace for the back of the alternator. I didn't. It eventually cracked and broke the alt case from the vibration!
Small hex headed header bolts from "Spectre"(found at Kragen or Autozone Pep boys) worked really well for me.
If wrapping the headers, get 2 rolls. 1 will not do it.....again, I speak from exp:cry
good luck with the install! You wil love the headers!
[Modified by 89 Paul in Cal, 12:57 AM 2/1/2003]
02-01-2003, 08:48 AM
#4
Safety Car
Re: Which heated O2 sensor for 89 L98? (1MoorTym)
I used a Bosch 13010 which was orignally used in the 89 Turbo Trans AM and it also is the sensor TPIS sells. You can also use the Bosch 13077 which was used on the GMC Syclone and Typhoons (and I read that this is the sensor LPE sells)
02-01-2003, 11:39 AM
#5
Drifting
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Re: Which heated O2 sensor for 89 L98? (89 Paul in Cal)
SunCr
Yes, I'm going to rewire because the hookers 02 bung is in the # 7 exhaust primary and I want to move it to the Y pipe. I'd rather put it there then mess up the coating on the collector.
89 Paul
Thanks for all the tips (especially about drilling for the EGR, I might not checked that, assuming it was opened up !). I have a 6spd so I don't know if that gives me any more room on the driver side to mount the 02 sensor. I want to put it into the Y pipe to protect the coated collectors, maybe further back the space will be better. Which gaskets did you use? I want to go with the Earls.
dgoodhue
Thanks for the P/N's.
Yes, I'm going to rewire because the hookers 02 bung is in the # 7 exhaust primary and I want to move it to the Y pipe. I'd rather put it there then mess up the coating on the collector.
89 Paul
Thanks for all the tips (especially about drilling for the EGR, I might not checked that, assuming it was opened up !). I have a 6spd so I don't know if that gives me any more room on the driver side to mount the 02 sensor. I want to put it into the Y pipe to protect the coated collectors, maybe further back the space will be better. Which gaskets did you use? I want to go with the Earls.
dgoodhue
Thanks for the P/N's.
