Since those are grounds they can't energize the fuel pump. And from your earlier testing it sounds like the Oxygen Sensor Heater Relay is doubling as the Fuel Pump Relay. However, the power supply for the Oxygen Sensor Heater Relay (yellow) is not apparent. I think its important to confirm that it's there. I agree that the next step is pull that thing out and look for circuit integrity as well as using the schematic to insure all the connections are where they should be.

Also check Pin 11 on the ignition switch to see if it's hot when the ignition is off. That would be the yellow wire that could explain why the Oxygen Sensor Heater is always on (if that wire is missing on the relay tho, talk about bafflement...).

If you look at the schematic you can see where orange wires from the 2 relays join on their way to the injector feeds. In the absence of additional splices or bypasses it would seem that putting that jumper in alone is a theoretical solution to have the oxygen relay running the fuel pump. If that's the case I'd sure like to know how the PO figured that out. But that still begs the question why do that in the first place. Perhaps all the connectors for the fuel pump relay under there are destroyed.

 

Just noticed that, so scratch that one off the list!

 

Only the part about whether it exists on both relays. Given this:

I think that yellow needs a close look (Pin 30 should be the yellow). Trace it back to the ignition switch to see if it remains hot with Key Off.

Can you also check for power in Pin 30 of the Fuel Pump Relay? I'm thinking that should be hot but only with Key On, but ECU controls it from the ground (so even if it's hot with Key Off it doesn't create a problem).

 

AC Clutch Relay
#30 is small orange wire
#85 is blue with white stripe
#87A is black wire
#87 is green
#86 is Orange w/ black stripe

There was a reconnection (or wire switching) made on #85 and #87
#85 (original wire is red w/ black stripe), is reconnected to the #87 green wire.
#87 (origina wire is green) is reconnected to #85 red w/ black stripe wire.





Underneath the relay holder looks like hell.


This is the Oxygen Sensor Relay

#87 Orange w/ black stripe.
#85 Green w/ black stripe
#86 Yellow
#87A Small orange wire plus a large Orange wire ( Large orange wire looks like it got hot because some of the sheith is missing.
#30 orange.

 

That be lookin' UGLY!

Several different ways to go at this point-- do you have a plan yet?

If you're looking for my 2¢, the first thing I would do is pull all the relays and rewire them freestanding with new connectors or get something like



and put everything back where it's supposed to be using the schematic. You can tie wrap the bouquet to keep it out of the way. Then see if everything works OK or need to do more stuff.

 

I don't see the AC on the original diagram, so


You probably got this somewhere along the way, but just in case:

https://jeep-manual.ru/index.php?page=196

 

Here's a better picture of the crappy looking Orange (wires) going to the 30 pin on o2 relay.
Have'nt had the chance yet to trace the yellow wire back to the ignition switch.
Always look for someone's 2 cents.
You've been a great help so far and I thank you very much.

 

30 should be power, or the yellow, and I think it's where it should be.

 

But, you got an extra orange and orange stripe there, I'll bet those are for the fuel pump.

 

So what's left in the fuel pump relay? An orange? That's one too many oranges.

 

That orange wire with black stripe is going to pin #87 and is just hiding or following underneath the large orange wire with the missing coating.
The large orange wire with the missing coating is going to #87A along with the smaller orange wire.

 

Maybe that is yellow, looked like orange to me. Maybe it's just gotten discolored.

 

Fuel Pump Relay

Red to pin #30
Yellow to pin #85
Orange to pin #87
Red w/black stripe to pin #86

 

Sorry, I made a correction to my post regarding o2 relay and fuel pump relay wire colors and corresponding relay pin numbers... Please see 4:57PM 5-20-2019

 

According to the schematic all the wires on the oxygen sensor relay and the fuel pump relay are correct.
That leaves the ignition switch as the possible culprit for the oxygen sensor power wire being hot with igniton key off.