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tireburner163 · 12-03-2001, 04:41 PM

Ok it triped these codes today. Am I correct in assuming that I need new O2 sensors? What is the second code? Can you point me in the right direction as to how to fix it? And thanks man you've been a huge help.

172 (R,M) Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S -

186 (M) Injector pulse width longer than expected or Mass Air Flow (MAF) lower than expected -

12-03-2001, 04:41 PM	#1
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Ok PKRWUD, I got the code Ok it triped these codes today. Am I correct in assuming that I need new O2 sensors? What is the second code? Can you point me in the right direction as to how to fix it? And thanks man you've been a huge help. 172 (R,M) Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S - 186 (M) Injector pulse width longer than expected or Mass Air Flow (MAF) lower than expected - __________________ 1987 Buick T-type 1998 HD Electra Elide Last edited by tireburner163; 12-03-2001 at 10:58 PM..