What kind of HP decrease from missing 02 simm... Read inside, here is why I ask.
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What kind of HP decrease from missing 02 simm... Read inside, here is why I ask. I recently lost an 02 simm and although some people say it does not affect performance, I tend to disagree.
I feel that I am getting worse gas mileage and sometimes I get popping on start up.
Could this make me run rich?
It is the 02 simm under the passenger seat where the header comes down.
I am shoing 4 different codes on my a-tap readings as well.
I feel that I am getting worse gas mileage and sometimes I get popping on start up.
Could this make me run rich?
It is the 02 simm under the passenger seat where the header comes down.
I am shoing 4 different codes on my a-tap readings as well.
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Re: What kind of HP decrease from missing 02 simm... Read inside, here is why I ask. The post 02s (downstream S2s) do have a part in the math PCM uses.
G.M says :
Post 02 Functions
In part it says:
In addition to catalyst monitoring, the post heated oxygen sensor has a limited role in controlling fuel delivery.
If the post HO2S signal indicates a high or low oxygen content for an extended period of time while in a closed loop, the PCM adjusts the fuel delivery slightly in order to compensate.
<small>[ April 05, 2002, 08:22 PM: Message edited by: Team ZR-1 ]</small>
G.M says :
Post 02 Functions
In part it says:
In addition to catalyst monitoring, the post heated oxygen sensor has a limited role in controlling fuel delivery.
If the post HO2S signal indicates a high or low oxygen content for an extended period of time while in a closed loop, the PCM adjusts the fuel delivery slightly in order to compensate.
<small>[ April 05, 2002, 08:22 PM: Message edited by: Team ZR-1 ]</small>
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Re: What kind of HP decrease from missing 02 simm... Read inside, here is why I ask. Damn, that was some good reading man.
How much HP or ET do you think I could be sacrificing running my car like this? I would say from .2 to .4 wouldn't you?
Thanks again.
How much HP or ET do you think I could be sacrificing running my car like this? I would say from .2 to .4 wouldn't you?
Thanks again.
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From: Lincoln Park Mi
Re: What kind of HP decrease from missing 02 simm... Read inside, here is why I ask. so if you delete the codes for the rear O2's does it still do that? I assume there has to be a way to turn it off in order to do engine swaps into the older cars...
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Re: What kind of HP decrease from missing 02 simm... Read inside, here is why I ask. There is not really any way to say what the hp cost of it is. But it will effect your tuning.
As to the other question - you can turn off monitoring for O2's with LS1 Edit, or with any competent tuner.
Chris
As to the other question - you can turn off monitoring for O2's with LS1 Edit, or with any competent tuner.
Chris
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Re: What kind of HP decrease from missing 02 simm... Read inside, here is why I ask. Thanks man. I was just wondering how much was possible. I am at around 400 at the rear right now until I get my heads.
