vacuum control purge valve

1996 FORD RANGER
154,794 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
D_C
  • MEMBER
  • 2 POSTS
I am trying to get it to pass smog. i have a OBD II computer and the code P1143 comes up, this is the Evaporative Emission Control System. we have changed the solenoid, which was not working before, and it is now fixed. but the code still reads the same. how can i get this problem solved so it can pass smog?
Dec 30, 2007 at 5:10 PM
Advertisement
Avatar
MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
Can you recheck that code? No such code for Ford...they run to 1142 then skip to 1150....
Dec 30, 2007 at 6:00 PM
Avatar
D_C
  • MEMBER
  • 2 POSTS
sorry, my mistake. its code P1443
Dec 30, 2007 at 6:35 PM
Avatar
MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
Ok it is the evap system, the way leaks are found in this system is with a smoke test, they hook up you system to a low pressure machine that pumps smoke in, where the smoke comes out, is were the leak is! Look for obvious cracks in the EVAP lines to begin with


Heres a guide on using a meter

https://www.2carpros.com/articles/how-to-use-a-voltmeter


See attached trouble tree to get things started
Dec 31, 2007 at 4:55 PM
Avatar
JHASK3824
  • MEMBER
  • 8 POSTS
would like to know location of evap emissions control systems control valve ????
engin code po171,174 & p1443
Mar 14, 2019 at 5:58 PM (Merged)
Avatar
DOCFIXIT
  • ✓ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
see diagram of EVAP also 171 and 174 are lean bank 1 and 2
Mar 14, 2019 at 5:58 PM (Merged)
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Lean fuel condition could be caused by one of the following below:

1.Vacuum leaks
2.EGR and PCV valve.
3.Low fuel pressure.
4.Dirty fuel injectors.
5.Mass Air Flow Sensor.
6.Oxygen Sensor.
Mar 14, 2019 at 5:58 PM (Merged)
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.