cats remove
#1
Pole Position
Thread Starter
cats remove
I thinking about remove my cats and put in that place straight pipes.
I have two questions:
First: will that mod create any power that I can feel???
Second: make any trouble codes ???(I ask because I saw that there are oxygen sensor before cat but after too).
Thanks for help
Jerry
Sorry for my English
I have two questions:
First: will that mod create any power that I can feel???
Second: make any trouble codes ???(I ask because I saw that there are oxygen sensor before cat but after too).
Thanks for help
Jerry
Sorry for my English
#6
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Join Date: Sep 2001
Location: woodinville WA
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Check engine
The check engine may not go on right away, but it will eventually.
But by the time it does you may have already done some serious damage. Say the engine air/fuel ratio running predominantly, or maybe only within certain performance levels, too lean.
I don't actually know how the firmware is "constructed" but those oxygen sensors are there for a reason, and you can bet that the engine ECU firmware makes use of the differential sensor reading of the "before" sensor vs the "after" sensor to continuously adjust, correct, the engine's air/fuel mixture ratio.
Without the "Cat" in the loop, contributing its "correction" factor to the exhaust gas outflow, you can bet that the air/fuel mixture lookup table is outside the map.
But by the time it does you may have already done some serious damage. Say the engine air/fuel ratio running predominantly, or maybe only within certain performance levels, too lean.
I don't actually know how the firmware is "constructed" but those oxygen sensors are there for a reason, and you can bet that the engine ECU firmware makes use of the differential sensor reading of the "before" sensor vs the "after" sensor to continuously adjust, correct, the engine's air/fuel mixture ratio.
Without the "Cat" in the loop, contributing its "correction" factor to the exhaust gas outflow, you can bet that the air/fuel mixture lookup table is outside the map.
Last edited by wwest; 08-09-02 at 12:02 PM.
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