I cannot find any info on the other codes showing. PO172/175. Is not an uncommon fault. Check, clean or replace the MAF sensor and do the other checks below !
P0171. System To Lean (Bank 1)
P0172. System To Rich (Bank 1)
P0174. System To Lean (Bank 2)
P0175. System To Rich (Bank 2)
41) DTC P0171, P0172, P0174 Or P0175: HO2S Not Switching DTCs P0171 and P0174 indicate air/fuel ratio is correcting rich for an overly lean condition. DTCs P0172 and P0175 indicate air/fuel ratio is correcting lean for an overly rich condition.
Possible causes are as follows:
Fuel system malfunction.
EGR system malfunction.
Air intake or vacuum system leak.
Engine oil level too high.
Excessive internal engine wear.
Inspect engine for obvious defects in specified systems. Repair or replace as necessary.
Thursday, January 29th, 2009 AT 6:05 AM