Thread: GM Drive cycle advice
View Single Post
  #1  
Old 08-16-2016, 12:57 PM
jersey jersey is offline
Hummer Veteran
  
Join Date: Jul 2008
Location: Jersey Shore
Posts: 62
jersey is on a distinguished road
Default GM Drive cycle advice
Recently replaced the purge vent solenoid which cleared the check engine light codes po 442 and po 455 figuring I could go to inspection, but when I connected my code reader and checked the I/M Monitors it shows the EVAP SYSTEM is "not ready" and therefore I can't go through inspection yet.

I did the GM Drive cycle found here about 8 times now:

http://www.obdii.com/drivecycle.html

However the evap system monitor continues to read "not ready"

Any suggestions?
Reply With Quote