What model year (to determine OBD I or II) and how many miles?

Is it P0117, P0171 and P0420?

From Main FAQ
http://www.contour.org/FAQ/FAQ.php?s=probs&displayid=10

Take care of the ECT sensor first (P0117). That could cause the P0171 and P0420 codes.

ECT sensor
http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1b/ca/ba/0900823d801bcaba.jsp

Last edited by Tony2005; 06/03/06 01:56 AM.

"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles