Date registered: Jan 2011
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Replace EGR valve and cleaned EGR tube.. now getting codes P0171 & P0174
After replacing my EGR valve and Cleaning the EGR tube, my 2003 ML 320 runs and idals fine again. However now i have two new codes P0171 and P0174... Ive checked to make sure all of the vacuum hoses are tight and what not.. The only thing that happen durring tightening my EGR tube was that i over tighten one of the bolts and broke it so theres only one bolt holding the EGR tube in... could this be the reason? or is it my 02 sensorss
Thanks in Advanced!