Hello guys, so i have a 2007 rx8 replaced spark plugs, coils, wires, and also a auxiliary airport valve that had too much rattle in it (lost power mid range rpms) everything was fine until i tried to red line it since i hadnt been able to do so since the APV then i lost power at about 6k the CEL started flashing (misfire) i cant figure out whats wrong with it im going to call the mechanic again tomorrow to see if he can take a look again and also every now and then a blue smoke cloud comes out the exhaust, please help

 

Check your catalytic converter. It's likely toast. And that can destroy your engine, so don't drive it u til you verify the condition

 

Ho would i go about checking that i know the ignition system was bad for a little and i have to drive it to work will it be ok if i go easy on it?

 

Also could i go without the cat for awhile until i can replace it its estimated at like $1000

 

I wouldn't, clogged cat will kill your engine. You have options though, from cheapest to most expensive: gut your cat, midpipe, new cat. If you get a new cat do some research, a lot of them won't last with a rotary. If you get a midpipe you have the option of a resonator which will quiet the exhaust and change the tone so each brand sounds different.

 

Does hitting your cat cause any harm? Also do you guys think it could be anything else I tried to get a reading from autozone but there scanner wouldn't work with my car same thing for another place, I'm gonna try tomorrow to get it scanned then go and take the cat off and see if it's clogged if it is gut it and then hope for the best

 

Gutting not hitting

 

Gutting your catalytic converter will not cause any harm to the vehicle, however, it can cause air quality around the car to be worse, and can have ramifications when it comes time to get your emissions check.

In this car particularly, not having a converter is beneficial as when they fail they can completely ruin the engine via overheating.

 

With a gutted cat or a midpipe you will get a check engine light saying the catalytic converter is not functioning.

 

Alright thanks guys ill let you know what happens tomorrow, as long as i dont bog down at high rpms and ruin the car the CEL is the least of my worries.

 

Well, if you use an O2 delete specifically you'll get error code P0139 -- slow O2 circuit response. However, there are ways around this code.

 

So couldnt get the cat off. then i noticed my intake was covered in oil and the air box was drenched in it as well? anyone know what that could be? im guessing thats what the misfires are from but i have no clue where to start, im taking it back to the shop friday

 

You need to cleanup the intake and especially the MAF. This is usually caused by overfilling the oil or large amounts of blowby due to low compression. That's probably what's causing your blue smoke, you're sucking it in through the intake.

 

So replaced the cat it was toast then on the way home tons of blue smoke still coming out then a puff and my car died, it now won't start it turns and turns but won't start in guessing the seals are gone? I don't know, what should I go about doing now?

 

Have you cleaned oil from the intake?
Pull the spark plugs, see what they have on them. You're looking for gas, oil, coolant or metal flakes. Report back.

 

 

So lets say the seals went bad, what do i need to replace? just get a seal kit for the rotor that went out and done? or do i need to get a new rotor, housing, seals, etc basically a rebuild? or should i just look at getting a new engine?

 

Full rebuild/ replacement engine. Strongly suggest buying a ready engine from a rebuilder like Pineapple racing, Pettit, Rotary Resurrection (here on the forum).

 

I just got the car three months ago and still owe $6300 on it, i cant do pettit cause their engine is $6k pineapple i might be able to do and resurrection is way too far for it to work...

 

Im probably gonna have to just go with a used engine till i can save up and put a new one in

 

Also can you guys tell me what a engine core is? i kind of have a understanding but not really.