I have seen different posts on this and am wondering what the difference is?

I have seen one that involves unplugging the E Shaft position sensor, having a friend crank the car while the fluid is sprayed in the holes on the side of the intake manifold.

What is so different about this then letting the car idle and letting it suck up the Sea Foam / De Carb cleaner through the same holes?

 

Sea Foam and Mazda decarb are the same thing, mazda just charges more.

 

^^^ +1

 

The full procedure, as very nicely detailed by nycgps, https://www.rx8club.com/series-i-do-yourself-forum-73/diy-mazda-zoom-power-engine-cleaner-engine-cleaning-seaform-142852/ allows more time for the decarb solution to do its work. It's a matter of how much carbon buildup you have/may think you have.

 

one more thing... seafoam/mazda decarb is there to turn the carbon build up into a flammable compound one you start the car. If you're just running the engine while adding seafoam you're not getting the full benefit of the treatment. Fuel + seafoam = half assed cleaning

 

One thing they don't mention but Team RX8 recomends is.....................

Unbolt the cat...

Whe you do this all the extra liquid goes onto the floor and not into the CAT.

They liquid will kill the cat.

 

+1

bino-

 

yeah if the car is running it will just burn up if it is not burning let it sit for an hour or a few hours to soak up and get rid of all that carbon then fire it up and all that nasty carbon will be blown right out the exhaust

 

So to do this you take out the fuel injector chip so it doesn't put fuel in when you are putting in the sea foam then you get the sea foam in the rotors then let it sit for a few hours and finally replug everything and start it up?

 

Note that the thread you replied to is 5 years old.

I did a test between decarb methods and ingesting seafoam with the engine running is more effective than letting it soak, but still not that effective. And distilled water is about as effective as seafoam when ingested, but costs 1% as much per volume

There is also not a "fuel injector chip". They are referring to the e-shaft sensor, which just tells the ECU what position the e-shaft is rotated to. If this is disconnected, the ECU doesn't know when to inject fuel or fire the coils, so it simply doesn't do either.

 

the difference is how the engine works. seafoam is fine sucked into the engine on a piston engine because the seafoam would just sit on the piston not going anywhere.
on a rotary if the engine is running, I think the seafoam would get pushed out by the exhaust port but I would be wrong.

 

I know it's an old post, but can you elaborate on what metrics or tests you ran to come to these conclusions?


EDIT, found it: https://www.rx8club.com/series-i-tec...r-pics-241867/