Check engine light on on 2004 Subaru Forester

Check engine light came on while driving. Stopped the car and checked the usual ... was the gas cap on tight. Took off, put back on ... making sure it was clicking ... started the car again. Light was still on. Waited 24 hours and tried again. Light still on. Is it safe to drive?

by in Bath, NH on March 13, 2010
1 answer
ANSWER by on March 17, 2010
Check engine lights almost always have to do with emissions system of the car, it should be fine to drive.
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if the key is on so is the check engine light it flashes all the time.some times it has codes and some times it dose not. code reader said inc-evap and ready fuel, misfire ,comp,catlyst,02snsr,02ht...
The Check Engine Light may illuminate because of low catalytic converter efficiency. This same issue may cause the car to fail the State Smog Test if one is required.
The Check Engine Light may illuminate because of a failed knock sensor. Although the sensor often tests okay, it can fail intermittently, while the vehicle is being driven.
Only when both lights are flashing will the car began to stall.
Sometimes the Check Engine Light illuminates because the computer detects misfires. Subaru released an improved spark plug wire set to solve the problem. The ignition coil should also be inspected ...

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