How to turn off CAT OTP w/hpt?
04-21-2007, 10:59 PM
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How to turn off CAT OTP w/hpt?
Hey guys,
well will be finishing up my 3" exhaust install tomorrow morning. Now, since i have no cat or 2nd o2, i need to tune it out. Now, with the CAT over temp protection, do i just max it out so that it will never hit those temps? And/or should i change the fuel enrichment values to zero?
Also, will go through the codes when they come up. But doesn anybody have a heads up of what codes to expect with no cat/ 2nd o2 readings?
Thanks!
Nate
well will be finishing up my 3" exhaust install tomorrow morning. Now, since i have no cat or 2nd o2, i need to tune it out. Now, with the CAT over temp protection, do i just max it out so that it will never hit those temps? And/or should i change the fuel enrichment values to zero?
Also, will go through the codes when they come up. But doesn anybody have a heads up of what codes to expect with no cat/ 2nd o2 readings?
Thanks!
Nate
04-30-2007, 10:00 PM
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Hey guys,
well will be finishing up my 3" exhaust install tomorrow morning. Now, since i have no cat or 2nd o2, i need to tune it out. Now, with the CAT over temp protection, do i just max it out so that it will never hit those temps? And/or should i change the fuel enrichment values to zero?
Also, will go through the codes when they come up. But doesn anybody have a heads up of what codes to expect with no cat/ 2nd o2 readings?
Thanks!
Nate
well will be finishing up my 3" exhaust install tomorrow morning. Now, since i have no cat or 2nd o2, i need to tune it out. Now, with the CAT over temp protection, do i just max it out so that it will never hit those temps? And/or should i change the fuel enrichment values to zero?
Also, will go through the codes when they come up. But doesn anybody have a heads up of what codes to expect with no cat/ 2nd o2 readings?
Thanks!
Nate
you mention zeroing outt the enrichment values to zero. if I understand correctly are you referring to power enrichment. If so that would not be good. but perhaps you could point me into the direction your looking at. thanks.
04-30-2007, 10:33 PM
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I zeroed out my cot adders and set all the O2 #2 and heater codes in engine diagnositcs to 3 no error reporting and disable the mil/ You may need to readjust the pe tables slightly also.
04-30-2007, 11:01 PM
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Just zero out the Cot adders and max out the Temp Thresholds and you'll be all set. Then the car won't go excesivley rich at WOT when certain conditions are met in the PCM.
04-30-2007, 11:37 PM
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05-01-2007, 12:01 AM
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thankyou for the direction. makes sense.
what about the catalyst low effieciency PO420. put that to 3 as well?
so I got the following set to 3
po036,136,137,138,140,141
what about the catalyst low effieciency PO420. put that to 3 as well?
so I got the following set to 3
po036,136,137,138,140,141
Last edited by Asphalt Assault; 05-01-2007 at 12:17 AM.
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