Mike104 Posted January 31, 2012 Share Posted January 31, 2012 I got the Check Engine light yesterday on my way home from work and was dreading the P0420 code ('99 OBW with 2.5L). Since I knew the first question would be what is the code I pulled out my $30 code reader and got a P0106 (MAP Sensor Circuit). Armed with the code a bit of searching later showed that often it is related to the vacuum lines going to the MAP sensor near the Right Front Shock Strut. Since I had changed my oil the other day and checked the air filter, I figured that I probably disconnected the vacuum line inadvertently. Opened the hood and sure enough, the vacuum line was dangling from the MAP sensor. Reconnected it, cleared the code and hasn't been back since! Thanks to the USMB and its members for a quick, no cost fix Quote Link to comment Share on other sites More sharing options...
edrach Posted January 31, 2012 Share Posted January 31, 2012 Thanks for searching first. Glad it worked for you. Quote Link to comment Share on other sites More sharing options...
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