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Dave Nova
Dave Nova, Cadillac Technician
Category: Cadillac
Satisfied Customers: 1522
Experience:  ASE Master Certification. GM World Class Certification
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Ihave a 2004 cadillac devill i put ing coils in and now i

Customer Question

ihave a 2004 cadillac devill i put ing coils in and now i get po171 po174 code
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: po171 po174 yes
JA: Are you fixing your DeVille yourself? What have you tried so far?
Customer: yes noting
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 10 months ago.
Category: Cadillac
Expert:  Eric Gardner replied 10 months ago.


Can you tell me the reason the coils are being replaced in the first place?

Have you ever had these codes p0171 and p0174 in the past?

Expert:  Dan replied 9 months ago.

Were you getting these codes before replacing coils? Thanks.