Weird Check Engine Light
08-03-2002, 02:21 AM
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Porsche 997 C2S
Weird Check Engine Light
The check engine light on my 97 e420 came on yesterday, and it's rather perplexing to say the least. When it first came on, it started to flicker on and off. I realized that if I hit a bump in the road it would go off, and then another bump would turn it back on. I also realized if I pulled hard on the parking brake release, that the light would turn off.
Since I'd rather not go to the dealer and pay upwards of $70 just to have them plug in a computer and tell me what's wrong, could someone here have an educated guess as to what might be wrong? Or, is there a way I could discover the cause of the check engine light on my own? And further, are there any independent garages in the Boston or New York area that might be able to diagnose this problem? Thanks!
Since I'd rather not go to the dealer and pay upwards of $70 just to have them plug in a computer and tell me what's wrong, could someone here have an educated guess as to what might be wrong? Or, is there a way I could discover the cause of the check engine light on my own? And further, are there any independent garages in the Boston or New York area that might be able to diagnose this problem? Thanks!
08-03-2002, 06:50 AM
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Check Engine
I'm gonna guess that your Oxygen Sensor is loose or failing. When you hit a bump, maybe the wires get connected back up, and it turns the light off.
If you notice the MPG of the car begin to really stink (<15 miles/gallon), that would probably confirm the O2 sensor.
It shouldn't be too expensive to fix... maybe $200 or so.
If you notice the MPG of the car begin to really stink (<15 miles/gallon), that would probably confirm the O2 sensor.
It shouldn't be too expensive to fix... maybe $200 or so.
