Resetting computer for new exhaust?
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Elder User
Joined: Feb 2005
Posts: 630
Likes: 1
From: Central PA
Resetting computer for new exhaust?
I put a Gibson cat-back on my 98 expedition 5.4. Someone told me I should reset the computer so it "learns" the new exhaust. I never heard of doing something like that before. Anyone know what that's all about?
Posting Guru
Joined: Jun 2002
Posts: 1,214
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From: Rio Rancho USA
Its pretty common on newer vehicles.
Resetting the comp after doing any performance mod is a good idea, although you dont HAVE to do it. Just dont expect a huge difference.
In the old days of carbs, sometimes the engine would run just a little leaner due to better overall engine flow than the carb was originally set for. Nowadays, the comp will reset itself accordingly by letting it relearn all its parameters.
Resetting the comp after doing any performance mod is a good idea, although you dont HAVE to do it. Just dont expect a huge difference.
In the old days of carbs, sometimes the engine would run just a little leaner due to better overall engine flow than the carb was originally set for. Nowadays, the comp will reset itself accordingly by letting it relearn all its parameters.
