Remove Catalytic converter
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New User
Joined: Apr 2005
Posts: 22
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From: Maine
Remove Catalytic converter
2000 F-150 7700, 5.4
If the insides of the catalytic converter were knocked out, or if the converter was completely removed, what would this do to the back-pressure on the motor??
Would this mess-up the computer in the way the engine runs??
Anyone here ever do this??
Thanks
If the insides of the catalytic converter were knocked out, or if the converter was completely removed, what would this do to the back-pressure on the motor??
Would this mess-up the computer in the way the engine runs??
Anyone here ever do this??
Thanks
Thread Starter
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New User
Joined: Apr 2005
Posts: 22
Likes: 0
From: Maine
Ironic how things happen sometimes. I was at the mechanic's today getting my yearly inspection done. I asked him about this catalytic question, and this is what he said.
If you knock out the insides of it, or take it off completely, it will turn on the "check engine" light and show a code. He says that if the light is on, on the dash, then he is required to check the codes, and it would register on the computer as not being right.
He has never lied to me before, so I trust his word on this.
If you knock out the insides of it, or take it off completely, it will turn on the "check engine" light and show a code. He says that if the light is on, on the dash, then he is required to check the codes, and it would register on the computer as not being right.
He has never lied to me before, so I trust his word on this.
Postmaster
Joined: Aug 2003
Posts: 2,977
Likes: 1
From: South Texas
Yup, taking off the cats (did you notice there are 4 of them? 2 prewarmers, 2 cats) will set off a check engine light. The O2 sensor reading will be off, but you can add a MIL sensor to trick the computer to thinking the cat is still working.
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