Oxygen Sensor questions

RyDeFly · 01-25-2006, 03:05 AM

Like I said, the throttle is jacked up; its the assembly that runs along top of the engine near the firewall. The thing is way loose, so the cable is not retracted all the way, making the idle 2000-2500. I can pull it back with my hand and the idle will drop.

Once I engage the clutch, the rpms drop back down to what it should be, so driving it is not that hard... probably just stresful on the clutch though.

I'm pretty sure the mechanic said "fuel line", and he refered to "flushing it out" because of carbon deposits from it running rich for so long. BS then?

Also, maybe the "turbo hose" he was talking about is a vacuum line?

Thanks for you help guys.

kewlcoconut · 01-25-2006, 06:21 AM

dammit. i just spent like 5 mins writing a response to all your questions and browser somehow jumped back to the main page....so here it is in short

Google the o2 sensor for the supra. or visit stores you know. you can get it for under $100 easily. I heard Bosch isnt that great, people say they crap out pretty easily. Although that is just speculation. The Denso sensors can be different. you can get ones with the connectors, or with just the wire to connect to the old sensor wire. and here is a link on how to heat shrink all that stuff.

http://photos.dylanwiggins.com/thumbnails.php?album=146

as for your fuel line, do you ever use fuel injector cleaner? it does wonders if you use it. I make it a habit to use it every 1500kms or so. just to keep my fuel system good.

mrnickleye · 01-25-2006, 07:13 AM

perhaps the mechanic meant the fuel injectors were carboned up. This can be a common problem. Do as mentioned above, and use fuel injection cleaner in the fuel tank to clean out 'varnish' in everything, and carbon on the tips of the injectors.
Dirty injectors can stick open, and/or spray in a crappy pattern, which can cause engine running problems.

kewlcoconut · 01-26-2006, 01:08 AM

I highly suggest buying a new o2 sensor. I JUST replaced mine today. And took some pics of the old one. It's horrible looking.........change yours!!

01-25-2006, 07:13 AM	#3
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	perhaps the mechanic meant the fuel injectors were carboned up. This can be a common problem. Do as mentioned above, and use fuel injection cleaner in the fuel tank to clean out 'varnish' in everything, and carbon on the tips of the injectors. Dirty injectors can stick open, and/or spray in a crappy pattern, which can cause engine running problems. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

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01-25-2006, 03:05 AM	#1
RyDeFly Stock Join Date: Nov 2005 Posts: 9	Like I said, the throttle is jacked up; its the assembly that runs along top of the engine near the firewall. The thing is way loose, so the cable is not retracted all the way, making the idle 2000-2500. I can pull it back with my hand and the idle will drop. Once I engage the clutch, the rpms drop back down to what it should be, so driving it is not that hard... probably just stresful on the clutch though. I'm pretty sure the mechanic said "fuel line", and he refered to "flushing it out" because of carbon deposits from it running rich for so long. BS then? Also, maybe the "turbo hose" he was talking about is a vacuum line? Thanks for you help guys.

01-25-2006, 06:21 AM	#2
kewlcoconut 3" Exhaust Join Date: Sep 2005 Location: Vancouver, BC Canada Posts: 157	dammit. i just spent like 5 mins writing a response to all your questions and browser somehow jumped back to the main page....so here it is in short Google the o2 sensor for the supra. or visit stores you know. you can get it for under $100 easily. I heard Bosch isnt that great, people say they crap out pretty easily. Although that is just speculation. The Denso sensors can be different. you can get ones with the connectors, or with just the wire to connect to the old sensor wire. and here is a link on how to heat shrink all that stuff. http://photos.dylanwiggins.com/thumbnails.php?album=146 as for your fuel line, do you ever use fuel injector cleaner? it does wonders if you use it. I make it a habit to use it every 1500kms or so. just to keep my fuel system good.

01-26-2006, 01:08 AM	#4
kewlcoconut 3" Exhaust Join Date: Sep 2005 Location: Vancouver, BC Canada Posts: 157	I highly suggest buying a new o2 sensor. I JUST replaced mine today. And took some pics of the old one. It's horrible looking.........change yours!!