Congrats on the new Satty. Love those S cars.
The coolant temperature sensor is a common problem as Servicewriter states. Replacing it with an updated brass tip model from your saturn dealer should solve your starting, rich running, and crazy idle issues. You can find them for under twenty dollars. Also check the connector as they tend to corrode.I have posted a detailed step by step if you would like to tackle this by yourself or with friends. Just do a search of my prior posts or for ECTS.
They normally do not set a code tho, so you might have another issue. Don't know of a code 72. Code 26 Quad Driver Output Fault refers to probems with EGR, Coolant fan/light, evap purge solenoid, and the AC.
Change the temp sensor first then recheck the codes.
I will also recommend a few preventitive maitenence items that will keep you and your satty happy for years to come.
Clean the throttle body including the idle air controll valve.
Clean the EGR valve pintle, seat, and passage.
Change the tranny fluid and filter at the recomended intervals in the owners manual.
Lastly Check the oil often!
Good luck and let us know. :)
Friday, March 30th, 2007 AT 11:32 PM