View Full Version : Check engine light - P0171

05-13-12, 05:41 PM
So I have had the car for about 2 months and the check engine light came on last night after some hard acceleration. Went to Autozone and got them to check the code - it is a P0171 - Fuel trim bank one - said "Too Lean".

The car is an 07 V and everything else seems to be running fine. I am not positive about this but I think the warranty would have just ran out?? Anyone have any ideas or seen this before?

Thanks in advance!

05-13-12, 07:47 PM
This post has an attachment on that code:

05-13-12, 08:17 PM
Thanks Darkman! The check engine light actually went away now so I am assuming this isn't something to worry too much about.. :hmm:

05-13-12, 08:22 PM
I would not worry about it - it may have been some condensation in the fuel, or an intermittent electric connection.

Cadillac Cust Svc
05-14-12, 01:33 PM
I'm sorry to hear that you were experiencing this, pirategrad87! I just wanted to let you know that I would be happy to provide you with all the applicable warranty information for your particular V; please send me an email anytime at Katie_Lucille@gmexpert.com with your name and VIN.


Cadillac Customer Service