will a donut gasket on a 99 jetta make ur engine light come on

Asked by Oct 23, 2016 at 03:55 AM about the 1999 Volkswagen Jetta GL

Question type: Maintenance & Repair

4 Answers

94,105

Never heard of a donut gasket, post photos

61,265

It is and exhaust gasket,and yes if bad and leaking the o2 sensor will make engine light come on.

60,965

Fresh air can be pulled into the exhaust stream past the O2 sensor giving it a false lean mixture reading. This can trigger the check engine light. HTH. -Jim

94,105

Thanks guys you learn something new everyday

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