Thread: Exhaust Stench
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Old 11-08-2023, 06:53 PM
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Quote:
Originally Posted by NeighborsComplaint View Post
.A lean mixture send excessive amounts of NOx out the exhaust. It smells like insecticide and burns the eyes.
Great observation. I never could come up with anything that described it so well. Smells toxic was the best I could do and not at all like all our favorite automotive odors of ethanol-free gas, oils and other lubricants.

Shiny, bigger vacuum leaks can be as simple as a large hose that cracked or deteriorated. Brake booster or PCV hoses are the 2 biggies. Unless there's a crack in your intake manifold or an extra open port somewhere.

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