Test J: Step 95

95) Continuous Code 87: Check EEC-IV Harness  A Continuous Memory Code 87 indicates the primary fuel pump circuit has failed during vehicle operation. Possible causes for this fault are:

• An open in the VPWR circuit between the EEC power relay and the fuel pump relay
• Open coil in fuel pump relay
• Open in fuel pump circuit
• Faulty inertia switch

With engine running, attempt to cause a miss or stumble while performing WIGGLE TEST on VPWR circuit between EEC power relay and fuel pump relay. Wiggle fuel pump circuit harness (test pin No. 22) between ECA and the fuel pump relay. Lightly tap fuel pump relay to simulate road shock. With key off, inspect ECA 60-pin connector for damage or corrosion. If a fault is found, isolate and repair it. Rerun QUICK TEST. If no fault is found, fault may not be duplicated at this time.