MustangWorks.com : Ford Forums - View Single Post - Ok, I pulled the codes, but what the heck do they mean

tireburner163 · 11-29-2001, 11:06 PM

Ok I pulled the codes on my car using the KOEO and the KOER, but I'm not sure what all the code mean. Could someone please shed some more light on this for me.

521 (R) Wheel not turned during test or PSP problem. I assume that mean I didn't turn the steering wheel during the test

172 (R,M) Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S -. I guess this means I have a bad O2 sensor

536 (O,R,M) Brake On Off open or shorted to ground -. I have no clue what this means.

186 (M) Injector pulse width longer than expected or Mass Air Flow (MAF) lower than expected - I'm not sure about this one either

11-29-2001, 11:06 PM	#1
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Ok, I pulled the codes, but what the heck do they mean Ok I pulled the codes on my car using the KOEO and the KOER, but I'm not sure what all the code mean. Could someone please shed some more light on this for me. 521 (R) Wheel not turned during test or PSP problem. I assume that mean I didn't turn the steering wheel during the test 172 (R,M) Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S -. I guess this means I have a bad O2 sensor 536 (O,R,M) Brake On Off open or shorted to ground -. I have no clue what this means. 186 (M) Injector pulse width longer than expected or Mass Air Flow (MAF) lower than expected - I'm not sure about this one either __________________ 1987 Buick T-type 1998 HD Electra Elide