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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: 8 months ago.
Category: Cadillac
Expert:  Eric Gardner replied 8 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 8 months ago.

Were you getting these codes before replacing coils? Thanks.