V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

check engine light

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Old Apr 6, 2008 | 07:19 PM
  #1  
00StangV6's Avatar
00StangV6
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Joined: Mar 2006
Posts: 300
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Default check engine light

my cel has been comin on and off for awhile now. i checked it with a code reader and this is the sodes its showed,

catalyst system efficency below threshold ( bank 1)

and

evaporative emission control system leak detected ( gross loeak )

so do i need to get mil eliminators, would that solve one or both of the problems or wat
Old Apr 6, 2008 | 08:53 PM
  #2  
jwog666's Avatar
jwog666
5th Gear Member
 
Joined: Mar 2008
Posts: 2,260
From: wisconsin
Default RE: check engine light

sounds like a bad cat, the evap code means you have a large leak in the system, take to a dealership to diagnose that as they have the equipment required. most independent shops dont
Old Apr 7, 2008 | 12:21 AM
  #3  
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mws96
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Joined: Nov 2007
Posts: 233
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Default RE: check engine light

Jwog, love the rims man. What are those?

You need to do something about that fender gap though! They'll look badassafter you lower it an 1.5" or so...

Oh, and to the OP, sounds like a cat problem as well. It's an excuse to get a new mid-pipe my friend, what type of exhaust system are you running?
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