Check Engine and strange sound/smell

Tiny
HONDA91CHRIS
  • MEMBER
  • HONDA ACCORD
Honda, Accord, 1991, 272 220, 2.2L F22A4, Automatic

Hi,

Once and a while the check engine light will turn on. Not frequentally but sometimes. I just shut the switch and turn it on again and it will disappear. But it still cought my attention. My friend says that it could be the o2 sensor that's making it turn on beacause it's not the original muffler that's on it.

After, when i'm riding along, I will frequentally hear this strange sound coming from under my car. Like when a you drive over a branch in the road. The exact same sound. And no it's not that :p. Mybe it's just a loose piece of plastic?

Finally, sometimes when i'm riding at 100-120km/h this odor of something overheading smells in the car. I'm the only one that can smell it. Am I crazy? It think it comes trought the air vent. I did spill some oil on the motor head while changing the oil about a month a go. The stain is still there. Could it just be the oil cooking?

Thanks for your time.
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Sunday, October 7th, 2007 AT 8:15 PM

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Tiny
FISHERMAN
  • MEMBER
Hello!
Well if the "CEL" (check engine light) its on you have a bad sensor or circuit Check this out:

http://www.2carpros.com/dia/index.htm

About the noise under your car, park and block your tires and see under your car for something loose.

and the "smell" even a drop of oil on the exhaust pipe last for hours that might be the oil you spill on the head dripping in to the exhaust pipe.

Let us know on your findings...
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Monday, October 8th, 2007 AT 10:51 AM
Tiny
HONDA91CHRIS
  • MEMBER
Hi fisherman,

I'm going to check the problem with my check engine light this week, thanks for the tip.

As for under my car, I looked and I can't see anything that could be the problem. But i'll lift my car so I can take a closer look at it.

Could it be that it's the timing belt making the smell? It smells like buring rubber and my timing belt is pretty worn out.

Thanks for your time!
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Tuesday, October 9th, 2007 AT 8:30 PM
Tiny
BRUCE HUNT
  • EXPERT
Timing belt is nothing to put off in replacing. When it goes, you are done. A belt or rubber smell is a serious time to be looking at all the belts on the car.

Obviously there is some heat involved with this. After a good run when you smell the odor, stop the car and feel the external belts to test for extra heat on one of them. The timing belt is something I would replace ASAP.

The noise under the car, is it kind of like a rattle? I really have a heatburn with the Honda heat shields around the exhaust system. Any looseness and it finds a way to rattle.
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Wednesday, October 10th, 2007 AT 12:36 PM
Tiny
HONDA91CHRIS
  • MEMBER
Juging by the sound, it's coming from the left side of the car. And the exaust system is on the right. But i'll get it checked out. And as for the timing belt, i'll take a look at it tomorrow.
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Wednesday, October 10th, 2007 AT 4:56 PM

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