Question about 1994 Cadillac DeVille
The PO85 means that the throttle is open too far at idle. It could be that carbon needs to be cleaned away from the thottle plate and bore, you need to adjust the isc motor or the tps, min air, and idle learn procedures need to be done. To describe the procedures would be lengthly and complicated. It would be best if you got a shop manual and followed the procedures or subscribed to all data online. As for clearing the codes goes with the key on or engine running push off and warmer on the climate control panel until it goes into diagnostic mode. Then when it displays PCM? push the hi fan button. Continue to push low fan until it shows clear codes...then push hi fan and the code will be erased. Then turn off the key. Maybe changing the isc motor and clearing the code will be all that is necessary and the code and light will be gone. Hope that helps.
Posted on May 30, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Oct 02, 2015 | Cars & Trucks
Apr 03, 2014 | 2004 Chevrolet Malibu
Jan 06, 2018 | Cars & Trucks
Aug 19, 2012 | 2003 Nissan Altima
Aug 15, 2012 | 1992 Chevrolet S-10 Blazer
Mar 08, 2011 | 1992 Chevrolet Lumina APV
Jun 16, 2010 | 2001 Dodge Durango
Jan 31, 2009 | 2000 Dodge Durango
Jan 24, 2009 | 1994 Chevrolet S-10
Aug 11, 2008 | 1995 Nissan Pickup
231 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: