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Author Topic: SES Light?? 2k1SS 1st Gear Member # 2072 posted                    I threw a SES light the other night while just sitting at a stoplight. I had AutoZone read it & it revealed 4 codes. All of them were "Catalyst Efficiency Below Threshold" (I think P0430 & P0420, or something close to that) My car only has 13,000 miles on it. The mods are as follows: SLP Blackwing Lid, K&N Filter, SLP CNC-Ported Heads (stock cam).....that's it. Is it possible that my cats are bad already?? I'm just looking for any input/thoughts before I take it to the dealer. TIA! -Andy [ 20. October 2003, 09:07 AM: Message edited by: 2k1SS ] -------------------- 2001 LPM SS | Build # 1509 | M6 | T-Tops | Leather | ASR | iCAGS | Blackwing Air Lid | K&N Air Filter | Lou's Short Stick | BMR STB | Center Mount DynoMouth | SLP SFC | Bilstein Suspension | Auburn Differential | AAM Diff Cover | Chrome 10-spokes Baseline (9/14): 317.4 RWHP/ 330 TQ 2001 Suzuki SV650 - the "other" toy Posts: 47 | From: Middletown, CT | Registered: Aug 2003  |  IP: Logged westell Hey, could someone hand me a fire extinguisher? Member # 2034 posted                    it's covered, take it in. P0430 is bank 2 (pass. side) behind the cat H02S sensor. (sensor 2) bank 1 is driver's side could be your cat. converter, more like probably. -------------------- 2002 SS, Onyx Black Hardtop, SLP #1379, M6, Hurst, DD, MTI Clear Lid, Holley P-Shot, Flowtech Cut Out, McCord Power Plate, Power Slot Rotors, Hawk Pads, Sullivan Race Pedals, Syvania Silver Stars, Flaming Spoiler. Posts: 161 | From: Houston, Texas | Registered: Aug 2003  |  IP: Logged SuperSport 1st Gear Member # 1686 posted                       Have you changed brands of gas? Also might want to check your gas cap to make sure it's on there correctly. Both can cause the SES to light up, not sure if that is the code it would throw however. Just some food for thought. Posts: 198 | From: Orlando, Florida | Registered: Oct 2002  |  IP: Logged Happy_Dan Forum Moderator Member # 118 posted                       Most common reason I have seen for that is lower grade fuel. -------------------- Dan Abbene Clubs SSOA F99-1977 East Coast Camaro Club Worldwide Camaro Association NASA BMWCCA SCDA Informal Car Club Dan's personal Web Pages Posts: 5946 | From: Litchfield, NH, USA | Registered: Feb 2000  |  IP: Logged

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