03-25-2004
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#1
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Ok, so if i remove my cat, the rear 02 sensor is going to burn out?
and it is going to give me SES light. correct?
-E
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03-25-2004
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#2
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SpunBearing
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On a 2g yes, it will.
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The extra strength felt weak...
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03-25-2004
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#3
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Admin
Join Date: Oct 2003
Location: Sportsman's Paradise, LA.
Posts: 5,382
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It won't burn out, but it will throw a CEL.
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"You don't have a clue. You couldn't get a clue during the clue mating season in a field full of horny clues if you smeared your body with clue musk and did the clue mating dance."
When she get's bitchy, SPANK THAT ASS! (#Y#)
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03-25-2004
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#4
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SpunBearing
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Good addition. Thanks.
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The extra strength felt weak...
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03-25-2004
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#5
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Join Date: Oct 2003
Location: Red Wing, MN
Drives: Too Many
Posts: 3,184
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I think there is a kit you can buy to bypass that CEL for the second O2 sensor though isn't there?
CRAIG
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03-25-2004
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#6
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R U DTF bro?
Join Date: Aug 2003
Location: Oak Point, TX
Drives: C8 Stingray Z51
Posts: 20,620
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Who cares :0 Car will run the same, just pull the bulb out!
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Quote:
Originally Posted by Murlo26
I agree with Kracka.
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03-25-2004
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#7
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Admin
Join Date: Oct 2003
Location: Sportsman's Paradise, LA.
Posts: 5,382
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Quote:
Originally posted by CUSTOMDSM@Mar 25 2004, 03:56 PM
I think there is a kit you can buy to bypass that CEL for the second O2 sensor though isn't there?
CRAIG
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DSMLink or an O2 simulator
__________________
"You don't have a clue. You couldn't get a clue during the clue mating season in a field full of horny clues if you smeared your body with clue musk and did the clue mating dance."
When she get's bitchy, SPANK THAT ASS! (#Y#)
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03-25-2004
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#8
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Hellbound
Join Date: Nov 2003
Location: St Paul
Posts: 1,390
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Some resistors or a IC voltage regulator will do the trick.
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-Nulli Secundus-
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03-25-2004
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#9
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Quote:
Originally posted by LightningGSX@Mar 25 2004, 11:01 PM
Some resistors or a IC voltage regulator will do the trick.
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how much?
-E
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03-26-2004
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#10
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Big Turbo Monster
Join Date: Oct 2003
Location: Hopkins
Drives: GTS and E55
Posts: 1,105
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Every car is different when it comes to CEL codes. I know someone on here who vents their bov and was driving around a while with the MAS unplugged without the CEL poping. It was a 2g. With the MAS plugged in it still doesn't go off with the bov. My car (2g) pops a CEL when just venting a bov. With my MAS unplugged the car will not rev past 2000 rpm.
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Life's tough.... it's even tougher if you're stupid.
7/25/09
Motorcycle cop pulls up next to me on UNI and says "Want to race?"
Me- "I don't think you would stand a chance."
Cop says "probably not" and drives off.
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03-27-2004
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#11
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Older than Dirt...
Join Date: Feb 2004
Location: Inver Grove
Drives: IX EVO MR/SE
Posts: 483
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I still have yet to throw a single O2 CeL, like getto says, "It depends on the car". Do the "cat reduction" and see what happens, but I don't think it's a big deal.
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Let the madness begin...
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03-27-2004
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#12
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Hellbound
Join Date: Nov 2003
Location: St Paul
Posts: 1,390
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If you don't get a CEL, I would assume one or both of the o2 sensors are bad.Or I have read about pre-2000 Mitsubishi's having a problem with monitoring catalyst efficiency, more specifically the catalyst test hardly ever runs.
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-Nulli Secundus-
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03-27-2004
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#13
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Older than Dirt...
Join Date: Feb 2004
Location: Inver Grove
Drives: IX EVO MR/SE
Posts: 483
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Quote:
Originally posted by LightningGSX@Mar 27 2004, 01:32 PM
If you don't get a CEL, I would assume one or both of the o2 sensors are bad.
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That's interesting, I'm getting alot of 0 volt readings on my front o2 in my DSMLINK logs?
Not always, just sometimes, but I guess it should never read zero volts. so it maybe bad?
Anyway so if the front one goes bad, can it affect the back ones operation?
TIA.....
Howie
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Let the madness begin...
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04-06-2004
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#14
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Hellbound
Join Date: Nov 2003
Location: St Paul
Posts: 1,390
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If its an intermitent 0 volts, your o2 sensor is more than likely at fault.Or I guess the o2 sensor wiring is a possibility also.Due to the fragile and easily contaminated nature of o2 sensors the don't really have a long lifespan.
A missing or faulty rear o2 sensor may have effects other than the CEL.I can't say this is fact, but it seems to me, if an OBDII ecu see's a decrease in catalyst efficiency(faulty or missing rear o2 sensor), it may alter a/f ratios to try and bring the catalyst efficiency back up.Proper way to get rid of it, would be to note average rear o2 voltage(should be 0.6-1.0 volts) before you remove the cat.Then put a high wattage resistor(12 ohms IIRC) across the heater circuit, and another resistor(to drop voltage to previously noted voltage) between the b+ heater wire and the o2 signal wire.
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-Nulli Secundus-
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04-12-2004
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#15
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Captain J-Sack
Join Date: Oct 2003
Location: Chicago, IL
Posts: 594
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is there such a thing as having to break in an o2? mine was flatlining when cruising but now is starting to work..
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04-12-2004
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#16
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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so when is that o2 simulator be ready?
-E
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04-14-2004
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#17
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Guest
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2 of my buddies put in test pipes, one on an EVO and the other on a WRX. they put the O2 sensors back in, but with 1 or 2 washers on it to pull it out a little so it wont pop the CEL. both have had it like that for months now with no problem. just my 2 cents
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04-14-2004
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#18
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Join Date: Dec 2003
Posts: 10
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I have had 2 2nd gen cars both with no cats neither one posted a cel not to say yours wont but once you get the dsm link you can turn off the cel for the rear o2.
Both my cars were 95s which is a bastard year not truely obd1 or obd2 but inbetween. That might have something to do with why it dosent through a cel.
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04-14-2004
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#19
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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yeah ONCE i get dsmlinkidylink... which is coming when btw?
-E
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04-15-2004
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#20
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Join Date: Nov 2003
Location: Duluth
Drives: a pos
Posts: 722
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I have dsmlink with both O2 sensors and no cat. I've been running that for over a year with no cel's. I've had no problems with it at all.
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