Quote:
Originally Posted by Sugar Bear
See if the EGR valve moves when revving the engine and applying vacuum. An inoperable EGR valve will increase cylinder temp and then NO (nitrous oxide). Check for vacuum to the EGR also, you could have a bad valve and no signal to the valve.
Good luck!!!
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Thanks, will start with that.
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1979 Black on Black, 300CD (sold), 1990 Black 300SE, Silver 1989 Volvo 780, 1988 300CE (vanished by the hands of a girlfriend), 1992 300CE (Rescue).
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