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Vacuum control purge valve

Tiny
D_C
  • MEMBER
  • 1996 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 154,794 MILES
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?
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Sunday, December 30th, 2007 AT 5:10 PM

6 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Can you recheck that code? No such code for Ford. They run to 1142 then skip to 1150.
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Sunday, December 30th, 2007 AT 6:00 PM
Tiny
D_C
  • MEMBER
  • 2 POSTS
Sorry, my mistake. Its code P1443
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Sunday, December 30th, 2007 AT 6:35 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
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
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-1
Monday, December 31st, 2007 AT 4:55 PM
Tiny
JHASK3824
  • MEMBER
  • 8 POSTS
  • 1997 FORD RANGER
  • 6 CYL
  • 4WD
  • AUTOMATIC
Would like to know location of evap emissions control systems control valve?
Engin code po171,174 & p1443
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Thursday, March 14th, 2019 AT 5:58 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
See diagram of EVAP also 171 and 174 are lean bank 1 and 2
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Thursday, March 14th, 2019 AT 5:58 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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.
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Thursday, March 14th, 2019 AT 5:58 PM (Merged)

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