Question about 1986 Porsche 944

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1986 porsche 944 dont pass ca smog running too lean

All sensors and plugs oil gas distributor etc car runs perfect referee says gasoline and air mixture is too lean

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  • Porsche Master
  • 2,992 Answers

Probably Nox too high. Can also be engine too hot. Last time cooling system serviced? Also can be carbon in the combustion chamber ignites fuel too soon. Fuel delivery system and all sensors may be a problem. Bad or corroded connections can contribute to bad behavior of the ECU.

Posted on Apr 08, 2015

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What is the best oil for my car?


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2002 Hyundai Sonata wont pass smog


CA you can take the car to a referree and get a one time waiver if you have spent a minimum of $450 on repairs not including smog fees. Gives you two years to get it fixed. Smog Referee Call Center
Toll Free: 1.800.622.7733
You can also sell the car to the state for "up to" $1,000

Aug 19, 2008 | Hyundai Motor 2002 Sonata

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