2003 Mitsubishi Outlander Code 0171

Tiny
MITSUBISHI 2003 PUERTO RICO
  • MEMBER
  • 2003 MITSUBISHI OUTLANDER
  • 120,000 MILES
Check engine light on then off for past 3 years, I put fuel injector cleaner to pass inspection, rough idle, problem starting after adding gasoline at times, cleaned fuel injectors at Jiffy Lube, replaced oxygen sensor before catalytic, new fuel pump /filter, cleaned throttle body, EGR, tune-up done, new PCV, Checked vacuum leak negative, Dealer cannot fix problem, says leak could be coming from firewall. CARMD states I need to replace wiring harness where O2 sensor was replaced?
If you can solve this mystery I will gladly pay you for your advice. Moreover, you would be the only person to solve this matter
Do you
have the same problem?
Yes
No
Monday, June 10th, 2013 AT 11:59 AM

3 Replies

Tiny
SATURNTECH9
  • EXPERT
The first thing I need from you is the exact code number you have in the computer not code descriptions?
Was this
answer
helpful?
Yes
No
Monday, June 10th, 2013 AT 12:06 PM
Tiny
MITSUBISHI 2003 PUERTO RICO
  • MEMBER
Enclosed are the test they ran on said vehicle.

The initial code is P0171 left bank lean
Was this
answer
helpful?
Yes
No
Monday, June 10th, 2013 AT 12:37 PM
Tiny
SATURNTECH9
  • EXPERT
So is the P0171 the only code you have currently?If so they have to check for a vacuum leak. That's where I would start. Has any one ever done a smoke test on it where they pump smoke into the intake to look for vacuum leaks?
Was this
answer
helpful?
Yes
No
Monday, June 10th, 2013 AT 6:28 PM

Please login or register to post a reply.

Recommended Guides