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93 940 high Nox 900

posted by  Sumerduckman on  Wed Jun 28 09:15 CST 2006
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last visit: Tue Aug 21 11:31 CST 2007
[RELATED]

Things to check would be bad vacuum lines, leak in intake manifold gasket, leak/s in intake snorkel tube if it is a Bosch FI car, and weak or lazy O2 sensor. Next on the list would be clogged injectors or bad/leaky injector o-rings , low pressure at the fuel rail , or blinky ecu coolant temp sensor.
Check to see if it is setting any codes, that could give a clue.
--
Gary Gilliam Sumerduck VA, '94 940 Regina '86 240gl






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