Check Engine Light/2000 Subaru Forrester


#1

Check engine light (CEL) first came on 8 months ago. Local mechanic reset the light and about every 500 to 700 miles CEL comes on again. Read-out from computer tool states, Catalytic Converter. Car has 86000 miles, oil changed every 3000 miles, get 30 mpg on highway. Had the light reset 5 days ago and went through inspection. Car passed and no problems. OK…why is the CEL coming on?


#2

Bad oxygen sensor?
Bad catalytic converter?
Bad mechanic?


#3

The exact code number would be helpful for us to assist you. I’ll bet it was something like P0420: Catalyst System Efficiency Below Threshold (Bank 1). Here’s a good explanation of the code:


#4

you may just need a new fuel cap, or make sure it’s tight after filling up.


#5

OK…why is the CEL coming on?

Because the car is telling you that something is wrong and needs to be checked.

Sorry, had to say it. Listen to VDC.