Dash lights, etc, and fuel pump starts with key/everything dies when I hit start button. I hear a click in the engine shut off relay. I have a power commander attached, and it lights also. sometimes nothing lights with the key, and some times everything starts, and engine runs.

First check oil (low oil sensor) Next the Fuel pump relay.

Relay or fuse?

the ecu controls the power to the pump and injectors. are you getting error on every test on reader that can be the ignition relay. its in the dash when you turn the key should hear it go click click. if just one click then one side of it has gone. there is the low volt side, ignition interior dash lights etc. high volts is ecu abs, air bags. etc. low volts go to the abs and ecu but when engine started it needs the high volts to be there to run.

This is a delay to power the fuel pump. You need to check the output from the ECU/ECM. check for any error codes, check if there is power from the switch. Once the engine runs , you need to see if there is any error codes or faulty symptoms.

If you hear relays clicking sometimes and the jeep won't start, at those times, is the check engine light illuminated on the dash, or not? If no check engine light is on the dash, at times when the jeep won't start, your ecu is in need of repairs. The ecu sends power to the ignition and fuel relays and when the ecu starts to malfunction, the relays usually start clicking.

When the engine dies do the accessories such as radio, lights, heater all die along with the engine; or do they keep running as they were prior to the stall?
If they all quit together (as if the key was shut off) I would check the electrical part of the ignition switch or the battery cables and connections (check both ends of cables and little ground wire near battery that connects to car body). The ignition switches are a well known culprit in the s10's.

If the radio and lights keep running after the stall, I would look at the crank position sensor, ignition coils etc.

Good Luck!

Faulty pressure regulator mabey or plugged fuel filter. Do you have constant power to relay and pump?

U have lost the battery, check the cables, if they are clean (no corrsion) replace the battery, modern sealed batteries fail like this, crank fine and then puff nothing, happened to at least 5 times over the years and saw it all the time at work.

ok, this is a commom problem with this 92 hondas,

it may be the pump fuel relay, which is under the dash on the driver side by the fuse panel.

here is a way to determine that.

when you turn the key on the on position

do you hear the fuel pump running while the engine light is on, and does the pump stop running afteer the engine light goes off?

if you do hear the pump running then it means that fuel pump is working fine ( since it way just replaced), but if you don't hear it running while the check engine light is on ( about 2 seconds) chances are the fuel pump relay is not working as it should.


also there are clicks that have to be heard on the starting process.

1 when you turn key to on possition

2 when the check engine light goes off( a click has to be heard just after it goes off)

3 after the car starts

If you don't hear this clicks, try to get your ear close the location of the fuel pump relay( near the fuse panel under the dash).


the fuse relay is just a bunch of circuits soldered, so you can get it to someone who knows how to solder and fix it.

or just get a replacement one at any junkyard. ( cheapp)