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Old 08-10-2003, 08:57 PM
ejsharp ejsharp is offline
Senior Member
Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
Need sugestions for reducing Nitrogen Oxide in 1987 300E

I followed previous advice and looked for vacume leaks but the 1987 300E has only a few small vacume lines and all were OK.

If the emission reading was a point high because of lean fuel mixture... then what else can I do to bring the Nitrotren Oxide down a wee bit? Would increasing the octane or running the car for about 15 miles just prior to the emission test help in any way?


1993 190E 2.3
2000 Toyota 4x4 Tundra
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