2008 Chevrolet HHR Q&A

2008 Chevrolet HHR Question: spark plugs

I just changed spark plugs in a o8 hhr and the engine light came on it starts no problem and runs great I don't understand what could be the problem -
Answer 1
You could reset the Check Engine light with a scan tool or just disconnect the battery. You may have had the ignition key on when you disconnected the ignition coil. Better yet if there is no fault the computer does a self check and after a few drive cycles will turn the light off itself when it realizes the fault is gone. -
Related Items:
where is the spark plugs located
WHAT CAUSE THE TRACTION CONTROL LIGHT TO COME ON AFTER CHANGING SPARK PLUGS
The scanner code indicates that the #4 spark plug is misfiring. I would like to know where #4 is located using a diagram if possible. Thank You
If an hhr does not need a tune up only follow maintance why replace spark plugs. Isnt that included in a tune up
A Loose or worn gas cap may cause Check Engine Light to illuminate.