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MY ENGINE LIGHT SHOULD COME ON WITH THE GAS CAP OFF
2006 Hummer H3
I noticed I forgot to put my gas cap back on when I got home from work about 9 miles. This truck if the gas caps off the engine lights should come on right away so why would it not come on?
Wednesday, April 11th, 2012 AT 12:24 AM
It has to fail the evap test 3 times. The test only runs after an 8 hour cold soak. It would take a day or to to be turned on.
Wednesday, April 11th, 2012 AT 12:26 AM
O okay thanks and I don't know if I can ask one more thing what's an air solenoid relay for and if I have a fuse that says air sol why is there no relay for it
Wednesday, April 11th, 2012 AT 12:29 AM
You may not have the air pump. May be just a california option.
Wednesday, April 11th, 2012 AT 12:31 AM
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