Thanks Gents...will check these things out in the morning. Thanks for locating the parts for me. First I will check the line to the ALDA valve as first suggested then I will try plugging the EGR and ARV valves. The valve lash was already done and I believe the last mechanic also checked my injection timing because the engine was idling bad and shaking the car...Any suggestions on the adjusting procedure for the ALDA valve?