Hello I have a 1998 wrangler 4.0, 4wd, manual trans. I was driving home and it shut off out of the blue. All lights work and it cranks but no start. Check for spark and their is none. Also the fuel pump doesn't prime. I checked the fuel pump relay and it is fine but their is no power going to it as a matter of fact their is no power to it or the horn relay but all the others are in the box are fine. I replaced the CPS and still nothing. I then took it to a shop and they put in a new distributor and wires and had me pick it up. Fired right up but as I was driving home not 15 minute later it shut off with all the same symptoms all over again. I'm so consued I've checked every last fuse and they are fine. Any help woul be greatly appreciated! Thankyou for reading
If the fuel pump isn't even cycling, see if its relay inside the Power Distribution is turning on-off as it should when the ignition switch is first turned on. You'll need a helper to turn the ignition switch on while you put your ear next to the relay to see if you can hear it click on-off. If you hear it clicking, odds are that the fuel pump is bad. A volt meter or test light to test for 12 volts turning on-off at the rear at the fuel pump's power plug would help to verify it. The plug is on the driver's side where where it goes into the gas tank skidplate to power the fuel pump.
Be very careful with the wife mod. Uninstallation can be extremely expensive. Wife mods have been known to take the Jeep and all other mods during the uninstall process. Also, make sure you service your wife mod properly as often as humanly possible. Wife mods not properly serviced may malfunction or uninstall themselves at any time.