0 like 0 dislike
752 views
by

I drive a 2008 Acura MDX. A Check Emissions light comes on and when I checked the codes I get the following 4 codes in order: P2413, P0404, P0134, P2251. Any ideas what it could be? I previously replaced an oxygen sensor about a year ago.

Vehicle: 2008 Acura MDX

1 Answer

0 like 0 dislike
by (13.4k points)

P2413 EGR system malfunction

P404 EGR control circuit range performance problem

P0134 Rear A/F (airflow sensor) bank1 sensor 1 heater system malfunction

P2251 Rear A/F (airflow sensor) VS circuit high

Replace the EGR if the valve stick open you can get these code. P0134 is a result of a open EGR , P2251 is a result of P0134..

Related questions

0 like 0 dislike
1 answer 505 views
0 like 0 dislike
1 answer 261 views
1 like 0 dislike
1 answer 398 views

36.2k questions

32.2k answers

1.3k comments

22.8k users

Need A Repair Shop?
Find local automotive repair shops in your area.
Does your car have Safety Recalls? → Check here
...