Red hot cat
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Freshman User
Joined: Feb 2007
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Red hot cat
I'm working on a 02 4.2 with a 1131 lean code and slight missfire. I found the coil was bad and replaced it, still missing. Had it on the lift running and noticed the bank 2 cat was glowing red & thought it was plugged. Changed cat & still misses & turns red hot. could this be leaking isolator bolts causing this?
Postmaster
Joined: Aug 2001
Posts: 4,532
Likes: 5
From: Trussville, Alabama
Thanks for the update!
I have been out of town the last several days but before I left I posted a reply. I checked today and see that my post didn't get posted.
I must have bailed out before the reply got sent. Either way, my suggestion was to look strongly for a very lean condition. From my tinkering around with motorcycles I have seen exhaust pipes turn red and in each case it was due to excessive lean condition.
Glad you got it squared away!
I have been out of town the last several days but before I left I posted a reply. I checked today and see that my post didn't get posted.
I must have bailed out before the reply got sent. Either way, my suggestion was to look strongly for a very lean condition. From my tinkering around with motorcycles I have seen exhaust pipes turn red and in each case it was due to excessive lean condition.
Glad you got it squared away!
