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Author Topic: 95 mustang gt codes. klonoa ¯ Member # 1771 posted                              Just checked the codes on my 95 gt, I'm getting codes 171, 172, and 189. I installed a new maf and o2 sensors a bit over a year ago, any clue what the problem is? The car does feel a bit sluggish and I only get the check engine light after the car is warm. All help is appreciated. -------------------- 2003 Mustang Cobra - 454 rwhp - 470rwtq Ex. 2001 vortech'ed v6. Posts: 938 | From: Richmond, Cali. | Registered: Sep 2002  |  : Kb69fastback ¯ Member # 13054 posted                              171 and 172 are O2 codes. Have you monitored any of the O2 readings? Are you running cats or no cats? Try cleaning your Maf sensor. Sounds like it may be bad again or needs to be cleaned Posts: 90 | From: Roseville ca | Registered: Jul 2013  |  : klonoa ¯ Member # 1771 posted                              Running no cats right now. I'll try cleaning my maf to see if that works. -------------------- 2003 Mustang Cobra - 454 rwhp - 470rwtq Ex. 2001 vortech'ed v6. Posts: 938 | From: Richmond, Cali. | Registered: Sep 2002  |  :

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