Question about 1997 Cadillac DeVille
Check Engine Soon light goes on and when checked, these are the only codes showing. What is the fix?
Lean bank 1and bank 2, possible vacuum leak , restricted fuel filter or low fuel pressure.
Posted on Dec 27, 2013
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
put a new gas cap, those system are pres. even if
the cap look ok it maby leaking replace with a new
one it should solve your prob.
eng.ligh come on because of the gas cap
Posted on Apr 09, 2009
PO135 is oxygen sensor Bank1 sensor1. PO404 is EGR.
personally, I'd pull EGR off, clean pintle good with throttle body cleaner or carb cleaner, re-install, erase codes & try it for a while & see if it code(s) come back.
Posted on May 07, 2009
If you like go ahead and let someone sell and replace your transmission but here is my suggestion! Check around and see if you can find a minor vacuum leak! This can simply be the big round hose that goes from the fuel injection to the power brake hub! This is normally a push in connector which has about a 1/2 inch hose clamped on it! If there is any kink or the connector is not in correctly a leak will occur and the transmission will shift rough as though you will be thrown out of the vehicle! Try unplugging this connector and plug it back in hard and straight and maybe you will be lucky and fix your problem. If the vacuum is correct your transmission will shift better than you have ever experienced!
Posted on Aug 16, 2009
Anytime I get a too lean DTC I first change the fuel filter if it hasn't been changed in awhile. You'd be surprised how many times this has helped.
Good Luck with it.
Posted on Oct 22, 2009
Tips for a great answer:
Jan 27, 2016 | Cars & Trucks
Dec 02, 2015 | 2005 Toyota Corolla
May 17, 2013 | 1997 Cadillac DeVille
Dec 12, 2012 | 1999 Nissan Altima
Feb 20, 2012 | 2004 Suzuki Verona
System Too Lean (Bank 2)
Basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exhaust.
Note: This DTC is very similar to P0171, and in fact your vehicle may show both codes at the same time.
Dec 17, 2009 | 2002 Ford Windstar Cargo
Nov 23, 2009 | 1995 Cadillac DeVille
Oct 22, 2009 | 2001 Cadillac DeVille
Sep 14, 2015 | 1997 Cadillac DeVille
174 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: