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Code 154 ? 850

posted by  B.B. on  Sun Sep 26 11:35 CST 2010
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last visit: Mon Oct 6 13:15 CST 2014
[RELATED]

After clearing the ECU codes on Friday afternoon, a day later I get
code 154

Leaking EGR valve
signal to EGR controller faulty
EGR controller faulty
Poor ground
Engine thermostat faulty

I just cleaned the EGR valve again
The engine is idling rough
The thermostat seems normal

*where is the EGR controller?
*Where does the EGR controller signal come from?
*Where is the ground in this circuit?

Thanks, Bill






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