Tuesday, January 3, 2012

I cleaned my MAF sensor... But the SES light is still on, but is running Fine now, Will the light go off?

For all the confused people out there P0171+P0174 are system lean codes banks-1+2 and if it is a ford you really need to have a scan tool to properly diagnose this problem! You need to see the BARO and LONG TERM FUEL TRIM pids to determine if it is a MAF problem OR a vacuum leak, Although it is almost a given if it is a 4.6 or 5.4 to check the PCV elbow on the back of the intake for a deteriorated hose! good luck... Edit to Brutl you talk a lot of smack for a guy with barely 10 Years under his belt!

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