SPONSORED LINKS

2003 Ford Explorer check engine codes

Tiny
CKREISER
  • MEMBER
  • 2003 FORD EXPLORER
Computer problem
2003 Ford Explorer 6 cyl Automatic 90'000 miles

I recently installed a K&N filter and intake tube on explorer. Shortly after, check engine light came on. I checked the codes with hand held OBD reader and found codes 171 & 174. System to lean- Bank 1 or 2. After erasing the codes, to allow for the computer to re-set ( the instal directions stated ) the same codes are coming back every 2 or 3 weeks. The vehicle runs great otherwise and the new filter has improved power and mileage. I sure hope you can help me eliminate this anoying CE light?
SPONSORED LINKS
Monday, March 22nd, 2010 AT 9:47 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,139 POSTS
A lean mixture is usually the result of a vacuum leak. Did you have to remove any when you installed this? Also is the maf sensor still connected?
Was this
answer
helpful?
Yes
No
Monday, March 22nd, 2010 AT 10:29 PM
Tiny
CKREISER
  • MEMBER
  • 4 POSTS
Maf. Sensor was re-installed and vacuum hose to intake received new clamps. Is there a way to clean the maf. Sensor, or should I buy a new one?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, March 23rd, 2010 AT 3:13 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,139 POSTS
Yes the maf can be cleaned. They actually make a special cleaner just for them. Most parts stores will have it.

Let me know if it helps.

Joe
Was this
answer
helpful?
Yes
No
Tuesday, March 23rd, 2010 AT 9:36 PM

Please login or register to post a reply.

Related P Code Content

Sponsored links