Chevrolet P1172: Secondary Fuel Pump Insufficient/No Fuel Flow

Is your scanner showing Chevrolet P1172?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

00:00/00:00

Chevrolet P1172: Secondary Fuel Pump Insufficient/No Fuel Flow

OVERVIEW

Severity

High

DIY Difficulty Level

Advanced

Repair Cost

$200-$1100

Can I Still Drive?

What Does The Chevrolet P1172 Code Mean?

Engine started, vehicle not moving, primary fuel level less than 25 L (6.6 gallons), secondary fuel level between 3-10 L (0.7-2.6 gallons), conditions met for 20 seconds before secondary pump command.

What Are The Potential Causes Of The Chevrolet P1172 Code?

Fuel tank level is too low (must be within 25-75% to test relay)
Secondary F/P relay power circuit is open (test the ENG1 fuse)
Secondary F/P relay control circuit is open, shorted to ground or shorted to power
Secondary F/P relay is damaged or has failed