Warning: include_once(/homepages/31/d139813187/htdocs/scoobypedia/scripts/stdconfig.php): failed to open stream: No such file or directory in /homepages/31/d139813187/htdocs/scoobypedia/pmwiki.php on line 342

Warning: include_once(): Failed opening '/homepages/31/d139813187/htdocs/scoobypedia/scripts/stdconfig.php' for inclusion (include_path='.:/usr/lib/php7.0') in /homepages/31/d139813187/htdocs/scoobypedia/pmwiki.php on line 342

Warning: Cannot modify header information - headers already sent by (output started at /homepages/31/d139813187/htdocs/scoobypedia/pmwiki.php:342) in /homepages/31/d139813187/htdocs/scoobypedia/pmwiki.php on line 1242
(:groupheader:)!! What is a CEL fix? <:vspace> '''Note: This article only applies to cars MY01> - you won't get any warning lights / error codes when decating anything earlier than 2001.''' <:vspace> Your ECU has one or more sensors to detect how efficent your catalytic converter(s) is working. If the sensor records too high a temperature for an extended period of time then it will raise a fault illuminating the Check Engine Light ([[Acronyms/CEL]]) to tell you your catalytic converter is no longer working as efficiently as it should - great given that you've just removed it! <:vspace> A CEL fix is something you would do after fitting a de-cat uppipe or test-pipe. To stop your ECU from raising a CEL, you have the option of mechanical or electronic CEL fixes. Otherwise you will end up with the CEL code P0546 = Exhaust Gas Temperature Sensor Circuit Malfunction (High Input) or the rear CEL code P0420 = Catalyst System Efficiency Below Threshold. This code is caused by the lack of a catalytic converter in the downpipe. The Electronic and Mechanical CEL fix assume that you have the stock rear O2 sesnor connected. <:vspace> * [[Electronic CEL Fix]] procedure (adjust your own ECU). This is the recommended procedure. * [[Mechanical CEL Fix]] procedure for P0546 and P0420 (bolt-ons to sensors) <:vspace> !! Related Articles <:vspace> * [[Decat Exhaust]] * [[Downpipe fitting instructions]] * [[Disable Subaru Fault Codes]] on your ECU e.g. P0420 (decat) * [[SubaruTroubleCodeDefinitions | Subaru specific trouble codes]] * [[OBDIITroubleCodeDefinitions | Generic OBDII trouble codes]] (:groupfooter:) <:block>