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CEL #49420 12/11/01 03:23 AM
Joined: Nov 2000 Posts: 31 Livonia, Mi R RiverRojo OP Member
OP RiverRojo Member R Joined: Nov 2000 Posts: 31 Livonia, Mi	Hello. I'm a NECO member and I drive a 99 cougar with 40k on it so far. A CEL came up the other day. I ran autotap on it and it came up: front bank lean front bank lean front bank lean front bank lean rear bank lean Anyone know where I should start to fix the problem? I have gutted precats (MIL's working fine), dual exhaust, KKM for performance. Some people have suggested fuel filter or iat is the problem. Just looking for more opinions. Thank you! Jeff 1999 Rio Red Cougar WW body kit and spoiler Eibach springs OMP fsb ST200 rsb and struts Gutted precats, dual exhaust

Re: CEL #49421 12/11/01 03:41 AM
Joined: Jan 2001 Posts: 647 Flowery Branch, GA B burgman Member
burgman Member B Joined: Jan 2001 Posts: 647 Flowery Branch, GA	Sounds like the upstream O2?s? do you have a code? 1131 or 1151 (IIRC)? - 1996 Mystique Spree 2.0 ATX - 2002 Mustang GT 5-speed - North Georgia Auto Forums

Re: CEL #49422 12/11/01 03:47 AM
Joined: Nov 2000 Posts: 31 Livonia, Mi R RiverRojo OP Member
OP RiverRojo Member R Joined: Nov 2000 Posts: 31 Livonia, Mi	0171 Bank 1 lean 0174 Bank 2 lean Then I got "C1602" Jeff 1999 Rio Red Cougar WW body kit and spoiler Eibach springs OMP fsb ST200 rsb and struts Gutted precats, dual exhaust

Re: CEL #49423 12/11/01 12:54 PM
Joined: Jan 2001 Posts: 647 Flowery Branch, GA B burgman Member
burgman Member B Joined: Jan 2001 Posts: 647 Flowery Branch, GA	Check out this Thread. Sounds like fuel filter or EGR - 1996 Mystique Spree 2.0 ATX - 2002 Mustang GT 5-speed - North Georgia Auto Forums

Re: CEL #49424 12/13/01 05:39 AM
Joined: Nov 2000 Posts: 31 Livonia, Mi R RiverRojo OP Member
OP RiverRojo Member R Joined: Nov 2000 Posts: 31 Livonia, Mi	I threw in some Techron, reset the ECU, and replaced the fuel filter with the help of a CEG member Brett (thanks if you read this). 63 miles and no CEL. I'm thinking if it stays off within the next 50 miles-I'm good to go. If that's not it-Brett and some ford techs are leaning towards a vacuum leak or a leaky intake gasket. We'll see. Thanks for your help guys. I appreciate it! Jeff 1999 Rio Red Cougar WW body kit and spoiler Eibach springs OMP fsb ST200 rsb and struts Gutted precats, dual exhaust

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