Originally Posted by Tural

i did the injector swap with less than 5 drops of fuel spill under the engine bay. draining the valve into a soda bottle sure does help. just don't keep it in there cause it might melt the plastic.

Originally Posted by no rdplz

I just used a tupperware container to catch it and I didn't have any hit the floor. Like I said, it's not needed, but it keeps a possibly mess from happening.

Originally Posted by Tural

true. very true. but when you're doing a write up, you have to consider that whoever is following it, might not be thinking out of the box and sticking word-for-word to your directions. it just makes is easier if you warn people about stuff like this.

Originally Posted by Tural

not the tupperware, the fuel pressure drain valve. any time you work with the rail, you're supposed to drain the pressure first.

Originally Posted by no rdplz

Gotcha. Thought you meant being able to catch the small amount of fuel. I'll throw it in there.

Originally Posted by Tural

i'm not trying to butt into your write-up friend. it's just that, as we get more experienced, we start taking more shortcuts, but it can end up pretty dangerous for somebody who's not expecting what, we know, is bound to happen.

Originally Posted by no rdplz

First and foremost, make sure you have new o-rings for the new injectors.

This is for 97+, it's probably the same for all XJ's, but this is from my 99 swap.
1. remove the air filter tube from the TB and the filter box, as well as the breather tube from the air filter box.
2. Disconnect the sensors from the TB.
3. Disconnect the vacuum line from the back of the TB.
4. Remove the 4 bolts that attach the TB to the intake manifold
5. remove the 2 bolts that attach the throttle cable bracket to the intake manifold
6. "Unclamp" the hoses from the top of the valve cover. Now move all the stuff you've unbolted out of the way of the fuel rail.
7. Remove the bolts that attach the fuel rail to the engine.
8. Disconnect the electrical plugs from the injectors.
9. Gently pull the fuel rail away from the engine. Be careful to not break the connector to the fuel line that at the front of the rail. You should have a little play room to move the rail around, but it's not much.
10. Once the fuel rail is off, remove the small metal clips from the injectors. They are right where the injectors meet with the rail. You need to reuse these so don't lose/bend/break them. A small flat head screw driver works very well to pop them off.
11. Hold the rail over something to catch some fuel (a medium tupperware container works very well, especially the kind Hillshire Farms lunch meat comes in) and remove the "rear" injector. Some fuel should come out of the opening.
12. With the "back" of the rail (where you just pulled the injector from) still over the container, pull the "front" injector. This will allow any remaining fuel to pour out of the rail freely.
13. Once the fuel is done draining from the rail, remove the other 4 injectors.
14. Make sure that all the o-rings from the stock injectors are out of the rail and the engine. If there's any gunk buildup in the engine holes, use a toothpick and a damp rag to clean the holes. Be careful to not let any crud get into the engine.
15. Make sure the new injectors have the o-rings and caps on them. Lube all the o-rings with a small amount of vaseline. This will keep them from tearing.
16. Plug each injector into the rail, and refasten the metal clips to "lock" them in place.
17. Firmly press the rail and injectors into place on the engine and install the bolts.
18. Put a small amount of di-electric grease in each electrical plug and reconnect them to the injectors.
19. Put the TB cable bracket, the TB, all hoses, and sensors back in place.
20. Start the Jeep, and check for any fuel leaks coming from either end of all the injectors. If there's a leak, pull everything off again and make sure the injectors and rail are fitted properly, as well as making sure there isn't any evidence of a ripped/torn o-ring. Put it all back together and recheck for leaks. If there are no leaks, turn off the Jeep.
21. Disconnect your battery terminals and hold them together for 30 seconds. After those 30 seconds, reattach the terminals to the battery.
22. Turn your ignition to the "ON" position - DO NOT START YOUR JEEP.
23. Turn your headlights on, wait 10 seconds, then turn them off.
24. Turn the ignition to the "OFF" position.
25. Start your Jeep. Your ECU is now reset and will "relearn" the proper fuel trim levels for the new injectors over the next 50 warm up cycles.