EVAP vent solenoid wiring repair and testing P0449

A common problem with these EVAP vent valves is a broken wire inside of the insulation! The wiring will look completely fine until you pull on the harness. In this video I will show you how to troubleshoot and repair this condition.

Engine Performance Diagnostics chapter 3

Symptoms
- check engine light (P0449 trouble code)

Fix
- repair broken wire to the EVAP vent solenoid

Tests shown
- how to repair a broken wire right at the connector
- how to repair a wiring connector
- how to test an EVAP vent solenoid (valve)
- how to determine power and ground side switching
- how to test the computer driver (transistor)
- how to use scan data to ID an open circuit
- how to use the "driver test" mode in the Power Probe IV
- how to use a scan tool in a bi-directional test mode

Tools used
- AES' Electronics Accupuncture Probes http://www.aeswave.com/cart.php?m=aff...
- Power Probe IV
http://www.aeswave.com/cart.php?m=aff...
- Power Probe Lead Set (PPLS01)
http://www.aeswave.com/cart.php?m=aff...
- Autel MaxiSYS MS908 Diagnostic System with Wireless VCI
http://www.aeswave.com/cart.php?m=aff...
- Permatex 85120 Liquid Electrical Tape 4Oz - Each
https://www.jbtoolsales.com/permatex-...
- Irwin 2078300 8" Self-Adjusted Wire Stripper
https://www.jbtoolsales.com/irwin-207...
- Xscorpion HSBCR Heat Shrink Butt Connectors 18/22Ga;50/Bag;Red
https://www.jbtoolsales.com/xscorpion...
- Weller PSI100K Portasal Butane Soldering Iron Kit
https://www.jbtoolsales.com/weller-ps...

Related videos
- 1997 Dodge Neon no start, crank sensor problems (repair of broken wires at the crank sensor connector shown)
   • 1997 Dodge Neon no start, crank senso...  
- (EVAP) Vent Solenoid Control Circuit P0449 repair - GM
   • (EVAP) Vent Solenoid Control Circuit ...  
- How to test an EVAP Vent solenoid (applies to all cars) - GM
   • How to test an EVAP Vent solenoid (ap...  
- 2008 Chevy Avalanche EVAP Vent Solenoid Test (P0449, P0455)
   • 2008 Chevy Avalanche EVAP Vent Soleno...  

Playlist
- EVAP System Testing
   • EVAP System Testing  

For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
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Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.