GM Service Manual Online
For 1990-2009 cars only

Fuel Pressure Specification - keywords pump P0171 P0172 P0174 P0175

Subject:Fuel Pressure Specification

Models:2006 Cadillac DTS



The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

You may have a concern of the fuel pressure specifications on the vehicle not agreeing with eSI.

Recommendation/Instructions:

eSI is in the process of being updated. The specification on this returnless system should be 385-425 kPa (55-62 PSI).

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.