Hi,

My check engine light has come on for about 6 months, but there was no code from the push button/LED on the firewall. I held down the button for few sec and the LED lit, but no flash after the button was released. I know the LED worked before (a few year back)... it flashed 16 for EGR, which was then fixed.

I could reset the CEL by unhooking the battery, and it would come back in a few days. The car seems running fine.

It is now time to take the car to smog check, and I try not to have to take the chance of having the light come on during the test.

I went through the related pages in Alldatadiy, but I could not tell if there was another place to hook up a pulse monitor. I appreciate any help or suggestions.

Thanks
Kachun

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Kachun

1990 300SE
2003 E320