RX-8 No Power - Fuel in Cat

[andycrx8]

Hi Guys,

I\'ve got a 2004 231bhp RX-8 (55k). A few weeks ago 2 ignition coils went on the rear rotor after she wouldn\'t start from being hot, after filling up with petrol. I had the coils replaced and the leads (plugs were new anyway).

When it happened I called the RAC out for a tow and we managed to get it started with a jump, but it kept dying (we held it at high revs for a around 30 seconds in an attempt to keep it running). After speaking to the Mazda garage they said there was fuel in the cat and I should take it out for a good run to try and clear it.

I\'ve done about 400 miles and there is very little power above 4,000rpm. Around town is no problem at low revs but she struggles above this. There is occasionally a knocking sound around 7,000rpm.

Anyone had any experience with this or know any way to clear the fuel? Could it be something else?

Any help appreciated!

[Arnie_O]

Where did you buy your coils and leads from mate?
Have you got a CEL (engine light) on the dash?
What\'s it sound like when running?

[clive]

In addition to the questions above this may be that where the revs were held high the cat may be damaged.

One quick first check is after a run can you  hold your hand down the side of the seat between the seat and the gear leaver tunnel.

If this is so hot you can\'t then its possible the cat has collapsed inside,

Hopefully though this is no more than the other two coils need replacing

[andycrx8]

thanks mate, I had all 4 coils replaced from the Mazda dealer (cost was pretty much the same as everywhere else I tried) and there are no warning lights on.

there\'s a different tone to the exhaust for sure but it doesn\'t sound too bad. Occasionally, when I get to about 7,000 there\'s a knocking sound (as if there\'s a penny or something loose) and then she won\'t rev any higher.

[Arnie_O]

can you rev through it though?
sounds like a duff Cat
out of interest how much where you coils dude?