Pokey_87
NAXJA Forum User
- Location
- Calaveras County
Went for a drive in the rain, Jeep ran and started fine. Parked the jeep, and it wouldn't start.
No fuel pressure at the rail, so I replaced the fuel pump and filter. That didn't help. Long, strong crank, but no start.
'87 Cherokee Laredo, Renix, no fuel-pump ballistor in this model, 4wd and manual transmission. Followed the maestro Cruiser54's tips: 1-6,8,9,11,19,20
You can hear the pump turn on when the key is first turned (6.8v at the harness), and then when you turn to crank the voltage drops to 3 something.
I've cleaned the C101, inspected the ECU, added a 4g ground from the block to the chasis, cleaned all connections in the engine bay, replaced the 02 sensor, replaced the CPS, and am still not getting any pressure or fuel to the rail.
Jeep will start with a bit of Starter Fluid. Pump will turn on from jumping 87 to 30 on the relay, but isn't moving fuel to the rail.
There is a spot where the pink wire for the fuel pump dips down next to the starter and there is a harness connection, on the other side of the harness is a small piece of wire that just connects the pink wire to the wire next to it. What is this?
What could be causing the pump to not receive power? Could it be something with the starter relay? or some other ground that I'm missing?
No fuel pressure at the rail, so I replaced the fuel pump and filter. That didn't help. Long, strong crank, but no start.
'87 Cherokee Laredo, Renix, no fuel-pump ballistor in this model, 4wd and manual transmission. Followed the maestro Cruiser54's tips: 1-6,8,9,11,19,20
You can hear the pump turn on when the key is first turned (6.8v at the harness), and then when you turn to crank the voltage drops to 3 something.
I've cleaned the C101, inspected the ECU, added a 4g ground from the block to the chasis, cleaned all connections in the engine bay, replaced the 02 sensor, replaced the CPS, and am still not getting any pressure or fuel to the rail.
Jeep will start with a bit of Starter Fluid. Pump will turn on from jumping 87 to 30 on the relay, but isn't moving fuel to the rail.
There is a spot where the pink wire for the fuel pump dips down next to the starter and there is a harness connection, on the other side of the harness is a small piece of wire that just connects the pink wire to the wire next to it. What is this?
What could be causing the pump to not receive power? Could it be something with the starter relay? or some other ground that I'm missing?