Catalytic converter manual on/off bypass?
Question: Anyone know if anyone sells manual cat bypasses? whether its controlled from inside the car or you have to go under to quickly change it or something? Thanks
Best Answers: Catalytic converter manual on/off bypass?
Such a device renders the car ILLEGAL for street use EVERYWHERE a cat is required. If you don't want the car to be street legal, you are better off simply removing the cat entirely.
If your catalytic converter has collapsed internally it can cause excessive back pressure in your exhaust system that can reduce you fuel economy. Also bad o2 sensors can cause reduced fuel economy. if the o2 sensors are malfunctioning then they aren't giving the proper voltage reference signals to you ECM AND PCM this can effect your long term and short term fuel trim. meaning that your engine isn't properly adjusting the amount of fuel to air mixture entering the combustion chamber. Because you truck's computer doesn't have the proper feed back from it's sensors to make the proper adjustments. I would also check the condition of your spark plugs, but that isn't the only thing that will cause reduced fuel economy.
And what useful purpose would this serve, Snowflake? Modern cars are made to run WITH the catalytic converter installed. Bypassing it won't improve the performance of your engine.
One, your catalytic converter, unless thoroughly clogged, is not going to cause problems like that. They stink like rotten eggs when very new, or very bad. Check your laws on the internet for your state, your state may not require catalytic converters on vehicles, and if they don't, cut if off, put in a piece of straight pipe and sell the junk cat to the scrap yard, they're worth up to $200 each due to precious metals in them. The throttle response sounds like a dirty fuel injector system, or possibly dirty fuel delivery component, like a fuel filter, fuel pump or a bad line (clog, leaky vapor return line, etc.) Since your brakes seem to be grinding, you can count on getting the rotors turned as well (most shops do this for 20-40 dollars per rotor) - When your brakes are grinding, the pad is gone & the metal shoe grinds in to the rotor metal, causing damage. Most shops charge $100 per hour & up. I would suggest doing a "Sea Foam Treatment" (costs under $20, you can do it yourself & helps tons!) Google that, & if you have tools & are mechanically inclined, front brakes (odds are, what is bad) are easy to replace. Buy a Chilton's manual (or other repair your own car type manual, almost all auto parts stores sell them for $20 or so) for your specific vehicle, make sure you have the necessary tools (listed in said repair manual), buy the parts, borrow a set of jack stands & a hydraulic jack & reserve a Saturday to do it yourself (or with friends, bring beer/pop/food). If you don't feel like learning to do brakes & a Sea Foam treatment, most shops will do your brakes & rotors for the cost of parts (they mark them up, way up) and a couple of hours labor. Then they will investigate your throttle issue & it could cost plenty, I strongly recommend a Sea Foam treatment (again, Google it) to sea if it fixes the throttle delay. Don't forget to choose a best answer when you figure his all out & I hope it works out well for you.
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