No DIY for injector replacement?

[Zreberlcoe]

I'm looking to replace my injectors with Mpowerful's 19# injectors and I can't find a single thing online for doing it. So it must be really easy, from what I have found its not, or it literally has not been documented and shared online. So I was wondering who could come up with some good steps for doing 19# injectors WITHOUT removing the intake manifold, because I know it's possible.

[peytonracer4]

i know you don't want to remove the manifold, but i PROMISE you it's so much easier. it will save you time and cursing.

[FLG]

Absolutely no need to remove the manifold and doing so would be a lot of extra work and cursing especially with the bitch tube.

Just pull off the valve cover, unplug the harness and yank it off (if new style single piece big one just pulls off, no need to touch the clips that's how it's designed) remove the temp sensor wires and lines and such, 4 screws and pop it out.

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[digger]

do not remove the intake manifold. no need to complicate things

[E30-325iS]

If you don't already have one get a Bentleigh manual.
Bleed off residual fuel system pressure by removing the fuel pump relay and cranking / running the engine until it stops.
Disconnect the battery.
Don't forget to change the fuel filter.
Check C191 for corrosion or damage.
Put a smear of oil on the new injector o rings before before installing the injectors.

[jeffnhiscars]

I did this last week along with a chip. We left the battery connected but did remove the fuel pump relay to bleed off pressure (very important and the engine needs to be cold obviously).

Disconnect 8 connectors, remove 4 rail retaining bolts, lift rail off manifold with all injectors, get skinny hands to remove injector clips, remove injectors, look for clips you dropped (spares are recommended), count pintle caps to see how many stayed in the manifold or fell in to the engine, reverse to assemble.

We also had to swap out one of the new injectors after road testing. It took all of 15 minutes mostly due to the engine being hot and the injector being #3 (very tight squeeze) Keep a fire extinguisher handy if you do this.

[Zreberlcoe]

alright guys thanks for all the tips, i got them installed! but now the car wont adapt and theres an awfully loud hissing whiny sound coming from the injector area but everything is bone dry and theres no vacuum leaks?

[digger]

valve cover breather connected?
vacuum hose for fuel pressure regulator connected?

[Zreberlcoe]

valve cover breather connected?
vacuum hose for fuel pressure regulator connected?

Yes and clamps tightened! I'm mystified, I've never heard a engine make this noise. I'll make a video real quick.

[digger]

bottom orings might not be seated properly. they will allow vacuum leak but no fuel leak

[FLG]

Back of intake manifold where brace is. Did you install that cover with the bolts correctly/sealed

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[Zreberlcoe]

Back of intake manifold where brace is. Did you install that cover with the bolts correctly/sealed

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Lemme check.. youre talking about the one with the four bolts that goes onto the valve cover to intake manifold right?

[Zreberlcoe]

Well they were lose but it's still not them..

[FLG]

Yes the ones in the intake need to be tight or you'll have a vac leak. Tighten the ones on the manifold first then the ones on the cover.

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[Zreberlcoe]

Well I'm missing one... But I always have been and it didn't make such noise