Electra Park Avenue V6-231 3.8L VIN 3 FI (1988)
Chart A-5 - Fuel System Electrical Test (Part 2 of 2)
CHART A-5 (Part 2 of 2) FUEL SYSTEM ELECTRICAL TEST (DIGITAL CLUSTER)
Test Description: Numbers below refer to circled numbers on the diagnostic chart.
6.
Checks for open in relay ground, CKT 450.
7.
Determines if the ECM is in control of the fuel pump relay through CKT 465.
8.
The fuel pump control circuit includes an engine oil pressure switch with a separate set of normally open contacts. The switch closes at about (4 lbs)
