Merkur Xr4ti L4-140 2.3L SOHC Turbo (1985)
Fig. 13 Checking operation of high pressure pump
1.
Connect jumper wire from pump ground terminal to a clean underbody ground and connect another jumper wire from pump feed terminal to
alternator output terminal, Fig. 13.
2.
If pump operates, proceed to TEST 17.
3.
If pump does not operate, replace high pressure pump, then repeat TEST 1 to verify operation of pump.
Test 17, High Pressure Pump Ground Circuit Test
1.
Using ohmmeter, check for continuity between clean underbody ground and the ground wire in the pump wiring harness.
2.
If there is no continuity, repair open in pump ground wire, then repeat TEST 1 to verify pump operation.
