Relieve fuel pressure before removing injectors?

About to take my injectors out for inspection/cleaning on my 2014.
Wondering if I should pull the fuel pump relay (if I can find it) and start the car until it stalls.
I know we don’t have a regular starter on this car but wondering if I try to start it again after it’s been stalled if it will relieve all the pressure from fuel system before removing the fuel rail.

 

But if the injectors are still plugged in to the fuel rail wouldn’t this still keep pumping in fuel and still have the fuel system under pressure?

 

Ok that makes sense. With car turned off, the fuel pump won’t be pumping more fuel in, therefore relieving pressure from the fuel system.
I’ll give this a shot.
Thanks.

 

Yep. I dropped a bottom o-ring and it of course disappeared down in my engine somewhere. Had to go to the dealership to buy a new one for $15.

 

I’m not the one you’re replying to but here’s a video I followed to clean injectors. Mine were pretty dirty.

I used two wires connected to two alligator clips. There are two pins on the injector female electrical connector. Clip your two alligator clips to those pins. And then the other side of the wire to a 9 volt battery. I don’t think the polarity matters.
You’ll hear the injector fire on.
I pulsed mine for about 3 seconds, 3 times, one each cylinder.
However, I still had a lot of fuel pour out of the fuel rail once I lifted the rail off the injectors.
Maybe I should have done it more like 10 times per cylinder but I didn’t want to burn the injector up running it dry.
I’d recommend unplugging your 12v starter battery so your fuel pump doesn’t fire on. Opening your drivers side door will fire the fuel pump, even with the car off.

 

These were what my injectors looked like at 85,000 miles.

 

After doing this for my first time… I wished I would have sprayed the engine (where the injectors plug into the engine block) prior to doing anything. I did have some crud in there and it’s almost impossible to get your hand in there to effectively wipe any crud away. Even if you are able to get your hand in there with a towel, you’ll just push whatever crud is there down into the hole where the injector plugs into.
Also, you don’t have to remove your intake for this job. Just have to remove your air box assembly.
Another note: 3 out of 4 of my bottom o-rings (the ones that go into engine block) stayed in the engine block. One bottom o-ring pulled out with the injector and it fell down in my engine, never to be seen again.

 

Nice. Yeah I just pulled my intake manifold and EGR pipe last weekend. I didn’t do the EGR valve or cooler. That part is a little more involved.