The check engine light came on after i went over a pothole. And it has gone on for 24hrs straight and then just shut off. then after driving for a little it came back on. has this happend to any one be fore. i took it to my mechanic and he said its probably just a sensor.

THanks for any help!!

 

Damn- your mechanic should've had more info than that.

Any time the Check Engine Light comes on, the mechanic should use an ODBII reader to get the message from the car regarding the issue.

If he didn't check that first, get a new mechanic... or get your hands on an ODBII reader. I got mine for about $100 and now I can see what the issue is my self when the CEL comes on.

 

Damn dude!! The exact same thing happened to me yesterday!!! I hit a pothole and the damnlight came on. I have yet to take it to the dealership cuz i know they will charge $100 just to pop the hood. Keep me posted w/ what happened to your car.

 

the lights been off for 24hrs now so... i dunno wat to do??????
Maybe its just because of the excessive heat in MA

 

I've reading about how if your gas cap is loose then the light will come on. I check my gas cap and indeed it was loose, but after I retighten it, the light is still on. I drove the car for 5 minutes and nothing so far. I'll check tomorrow and see what happens....

 

o2 sensors or MAF..... unless it's your gas cap.

 

Autozone, Advance Auto Parts etc. will read your codes for FREE.

 

Yes, when my light came on it was for both the o2 sensors & MAF. It would turn on/off every few days.

 

You need to drive it for a period of time without the error happening again and then shut it off and then repeat twice. You can't just start and stop it, it has to be driven for awhile. But if the error is still occuring (whatever it was), the light will not shut off by itself.

 

I had it diagnosed and its either the MAF or the 02 sensors, HOw much do these cost to replace?


Thanks for the help so far

 

Your MAF will set off the O2 sensor codes. Most likely, it's your MAF. They typically go out between 50-70K miles. Search MAF sensor on google and you should be able to get it for $220 or cheaper on ebay. It's a 10 minute do-it-yourself job.

 

i only have 38,000 on the clock

 

I had less then 50k when mine went. I think it cost about $230.

 

if i was looking for the part would it be the air mass meter.

Thanks

 

yes?

 

also, if it was your MAF, you'll notice a change in the performance of your car... if you don't really notice a loss of power, then it may just be ur gas cap

 

wat if it was the oxygen sensors

 

O2 sensors on our cars don't typically go out that early, unless you've been using some cheapo gas. MAF sensors do. If your CEL doesn't go off after the MAF replacement, then keep it handy because it will go out.

 

I have driven the car for 4 days now and teh light is still on. 2 days ago i filled it w/ fresh high octane gas and i made sure the gas cap ws ont tight. I remember when i first hit that pothole my low fuel light came on and it was flashing although the tank was half full. When i parked the car i noticed the fuel cap resting on top so i figured that was the problem, but 4 days later and the light still on!!!

what's next...diconnect the battery or wait longer? i dont think is anything else like sensors and crap....i think.

 

and reset the light

 

I was only able to read the codes... I tried to reset the light and erase the codes, but it didnt work on my car.

 

Good news fellas. It took a couple of days but the engine light finally went off, back to breathing again!!

 

My clk320 was working fine but now it kinda lossing its power a little bit i think you are right bout changing the MAF sensor i'll have it replaced tom...