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sicminds
GenIII
4/30/2004
10:23:25
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 Subject: o2 simms - pro/cons - basic working prop
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Message:
Title says it all,
whats the pro's and cons of a o2simm. Any one have any info on how they work and what they actually do?
thanks!
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Dodge Dakota
JOIN HERE
4/30/2004
10:56:41
| RE: o2 simms - pro/cons - basic working prop
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Message:
O2 simms are more for when you remove the
cat/s , i.e. dragstrip conversion.
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sicminds
GenIII
4/30/2004
13:59:49
| RE: o2 simms - pro/cons - basic working prop
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Message:
Well i am up on 97K now and need to replace the second o2 sensor, and was wondering if i should just get a o2 sim?
what does the o2 sim do? how do they work??
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Dodge Dakota
JOIN HERE
4/30/2004
14:52:50
| RE: o2 simms - pro/cons - basic working prop
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Message:
Do you have to get emissions checked in your
locality ?
Second O2 sensor checks cat efficiency.
Maybe cat is getting bad ?
Sim is probably just a resistor, which would give
computer a constant signal to stop codes..
cat or no cat..would not know the diff..
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sicminds
GenIII
5/03/2004
08:47:45
| RE: o2 simms - pro/cons - basic working prop
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Message:
dont have to get emmisions checked, but think the o2 is failing. Any idea of the resitor that is needed to trick the pcm into running its best?
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um
Dodge Dakota
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5/03/2004
18:00:53
| RE: o2 simms - pro/cons - basic working prop
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Message:
i don't think the sim gives a constant reading as the o2 sensor constantly flips between .001 to .9 hook up a scanner to your truck and see for yourself
if you gave the pcm a constant value it would think the o2 was bad and the MIL would come on
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Seth
Dodge Dakota
JOIN HERE
5/03/2004
21:45:37
| RE: o2 simms - pro/cons - basic working prop
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Message:
The o2 sims were created for emmisions reasons. People would gut their cat, then fail emmisions for a bad cat, OBD 2 especially. The 02 sensor after the cat is there to measure the effiency of the cat and if its working properly, and if its reading is the same as the pre-cat o2 sensor, or its out of its parameters then its telling the computer your cat is not working how it should. too make a long story short, just put another o2 sensor in it and dont mess with the simm . The simm was made to help people with gutted cats pass emissions.
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