pulled koeo codes 172 556 need a thought on them
#1
pulled koeo codes 172 556 need a thought on them
I pulled the KOEO codes and got 172 and 556 which are supposed to be O2 sensor on right side lean andfuel pump circiut failure respectively, what does this tell me I need to dol to fix the problems? do I need an O2 sensor and fuel pump? the car runs fine, but the CEL flashes at me sometimes. could the right side being lean be because of something else like injectors?
#3
p0172 is a bank 1 running rich code. p0171 is a lean code. if your running rich do you have any access to a decent scanner? it might not be a sensor. the sensor could be right and that you are really running rich. check your MAF sensor for any dirt on the hot wire. if so use a little electrical cleaner or rubbing alcohol with a cotton swab lightly. thats all i can think atm ill get back if i think of anything else. good luck
Thread
Thread Starter
Forum
Replies
Last Post
TfcCDR
V6 (1994-2004) Mustangs
1
09-14-2015 12:08 PM
Boostaddict
Lethal Performance
2
09-08-2015 09:56 PM
zanemoseley
2005-2014 Mustangs
6
09-06-2015 12:58 PM