The check engine light is on. My volvo mechanic has diagnosed the egr sensor as bad. This was based upon the codes, and electronically testing the sensor. They have ordered replacements from vovlo. All three replacements to date, have not resolved the situation. They tested the replacements, and the new sensors have a different resistence than the original manufacturer's specs. They have not been able to get help from Volvo. Apparently it is rare for a 91 740 to have an egr sensor, unless it was a model delivered in California, which mine was. Any suggestions?
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Saturday, October 27th, 2007 AT 6:27 PM
