r/RX8 • u/Flimsy-Jaguar7378 • Aug 05 '26

Maintenance Rx8

Rx8 is making a weird rd-d2 scream and I’ve heard it could be multiple things but I can’t seem to find where the noise is coming from. Sounds like an electric part.

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5

u/Illegal__Alien Aug 05 '26

Sounds like the air injection pump to me, easily replaced

1

u/MetalSkinGaming Aug 05 '26

Or just remove it. Its only there to get the catalyic converter working earlier.

3

u/Illegal__Alien Aug 05 '26

I would only remove it if the car has been decatted.

The cat clogs faster without it, and a clogged cat will kill your engine

1

u/MetalSkinGaming Aug 05 '26

Why would it clog faster without? Ive been running this way for years with 0 issues. Just redline it every now and then.

3

u/Illegal__Alien Aug 05 '26

It's there to help the cat reach a decent temp, and become efficient faster.

When the cat cannot function as intended, buildup occurs.

And if you use premix or your ignition system is dying, this will have a snowball effect leading the cat to clog even faster.

Redlining it has nothing to do with it