Remove the catalytic.....
#11
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I have ordered the resonator-straight pipe from MG Racing to complement my Mugen headers (on order) and aftermarket exhaust for more free flowing exhaust... I hope that it helps.
Will I see a "check engine" light on due to the lack of catalyst?
Thanks!
Will I see a "check engine" light on due to the lack of catalyst?
Thanks!
#16
Registered User
mingster and others who are contemplating on removing catalytic converter please pay attention to this warning!
I certainly gained something by using the BYS straight pipe in place of the catalytic converter.
However........
Two days ago I removed the Mugen ECU and replaced it with stock ECU. The car immediately felt loss of power and vtec didn't engage at all. I thought it was FPR and I fooled around a little bit. As the day go by the car started to run poorly with some hesitations and yesterday on the way from work I got the check engine light.
And today I replaced all the exaust system with stock system as well as the catalytic converter in place.
I still have to go to Honda dealer to reset the trouble code since simple ecu reset will not clear the check engine light but the car is now running better.
I will not run hard as of yet until if the check engine light is indeed for sure induced by removing the cat, but I am sure it is.
So, if you do not have performance ECU like Mugen this upgrade is out of the question.
I will give you guys more update, so....
I certainly gained something by using the BYS straight pipe in place of the catalytic converter.
However........
Two days ago I removed the Mugen ECU and replaced it with stock ECU. The car immediately felt loss of power and vtec didn't engage at all. I thought it was FPR and I fooled around a little bit. As the day go by the car started to run poorly with some hesitations and yesterday on the way from work I got the check engine light.
And today I replaced all the exaust system with stock system as well as the catalytic converter in place.
I still have to go to Honda dealer to reset the trouble code since simple ecu reset will not clear the check engine light but the car is now running better.
I will not run hard as of yet until if the check engine light is indeed for sure induced by removing the cat, but I am sure it is.
So, if you do not have performance ECU like Mugen this upgrade is out of the question.
I will give you guys more update, so....
#17
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Originally posted by 1Randyc:
I still have to go to Honda dealer to reset the trouble code since simple ecu reset will not clear the check engine light but the car is now running better.
I still have to go to Honda dealer to reset the trouble code since simple ecu reset will not clear the check engine light but the car is now running better.
#18
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1RandyC,
How much was the Mugen ECU and where did you get it from? So, if I am getting the cat replacement pipe from MG Racing then I should get the ECU? What else will the ECU offer me with my oter upgrades (supercharger, headers, exhaust, bored throttle body, honed/polished intake manifold)?
I figured loosing the cat would let my exhaust from the forced induction exit easier...
Thanks!
How much was the Mugen ECU and where did you get it from? So, if I am getting the cat replacement pipe from MG Racing then I should get the ECU? What else will the ECU offer me with my oter upgrades (supercharger, headers, exhaust, bored throttle body, honed/polished intake manifold)?
I figured loosing the cat would let my exhaust from the forced induction exit easier...
Thanks!
#20
Administrator
You could keep the stock ECU, just figure out what voltage the stock ECU wants to see out of the second o2 sensor, and replace the sensor w/ a resistor.
Then just plug the hole in the BYS pipe.
Then just plug the hole in the BYS pipe.