Check Engine Light

Guest · Post by **Guest** » 26 Oct 2005, 12:18

My check engine light came on a few days ago.

I live in Sacramento, CA. Does anyone know of a good mechanic in the area? Do I need to get a diagnostic test? How much do they range in price? What's the common cause of a check engine light coming on? If it's the oxygen sensor, is that easy to replace (i'm a self fixer)?

Any help is appreciated. Thanks.

bigern · Post by **bigern** » 26 Oct 2005, 13:10

i would go to auto zone and get them to pull the codes, then post them. if its an oxygen sensor code DO NOT change it immediately. post the code numbers and check the responses....

Guest · Post by **Guest** » 26 Oct 2005, 15:33

So I went to AutoZone, diagnostic read:

P0442
EVAP Emission Control System Leak (Small)

Post by **matthew1** » 26 Oct 2005, 16:09

Sounds like a vacuum leak. Check your vacuum lines and elbows.

guest · Post by **guest** » 26 Oct 2005, 21:05

I'm sorry, but I'm having a similar problem but am not a do-it-your-selfer. I definitely want to learn if possible. If you happen to have a schematic of the vacuum lines and elbows, that would be great. Thanks!!!

vicney · Post by **vicney** » 28 Oct 2005, 19:33

check your gas cap!!!!

Post by **matthew1** » 29 Oct 2005, 17:14

Sorry, no schematic. Vacuum lines are white in my 850.

Gas cap is a usual suspect, absolutely.

original guest · Post by **original guest** » 01 Nov 2005, 13:43

I haven't had the time to check my vacuum lines, but I went into Auto Zone to borrow a DBII to reset my service light. I erased 1 the only code it found, and my check engine light went away. I've only started the car a couple of times since, but could the check engine light really be a error in itself? Or a faulty electrical problem?

Thanks for all the responses.

Post by **matthew1** » 01 Nov 2005, 14:38

Could it be an electrical glitch? Sure.

I haven't heard of this happening often/at all, so I would guess it's a real fault (or was) in the emissions system.

Barry Munroe · Post by **Barry Munroe** » 01 Nov 2005, 18:11

Hi Guys

My CE light just came on after I got gas, how can the gas cap effect the CE light, or do you think a vacuum leak? THANK YOU IN ADVANCE