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i failed emmisions...any suggestions?

uid 13809's pic
posted by  Alex Z on  Tue Dec 3 18:14 CST 2002
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last visit: Thu Oct 3 04:30 CST 2013
[RELATED]

High NOx implies a lean mixture.. maybe a hotter combustion chamber. So while replacing your thermostat would be a great idea (and it's so cheap and simple too), I don't think it will solve your problem.

Which ignition system do you have? Bosch (red/brown/orange cap) or Chrysler (white distributor cap)?

The Chrysler system is designed to run quite lean (hence the name "lean burn") and this can tax a catalytic converter quite a bit.

Assuming the rest of your car is okay (i.e. no vaccum leaks, fuel mixture is okay, etc) it may just be a worn out catalytic converter.

- alex

'85 244 Turbo | ~144.9k miles






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