I need some advices on how to start my 2005 rx8. When engine is cold the car starts but if i try to start it again right after i turn it off it just wont do, i just bought few days ago. please give me some tops since im new with the rx8

 

First off, we will try to rule out everything until only your motor could be the problem.

Check:
-Ignition coils (they should last 35k at most)
-Spark plugs and wires
-Clean your air filter and MAF sensor (not related but couldnt hurt)
-For a glowing cat converter. When your car has been driving, look dirextly under the car and check if your catalytic converter is glowing red of heat. If it is, it could be clogged.

-If all these check out, your last option is to get a compression test done on your engine at the dealer. Being unable to start your car when hot is a clear symptom of bad compression or a dying engine.

I know you just got the car, but other symptoms include loss of power while driving, hesitation, stalling, idle stuttering and engine misfires (flashing CEL then goes away)

I know this because I had the EXACT same problem as you. My car would stall and not start and I had loss of power on the highway. It stalled on me twice before i took it to the dealer. I knew exactly my motor was done. I got a new one under warranty and the difference is like night and day.

Dont spend money to find a problem where there isnt any. Take it to the dealer and DEMAND a compression test. It is likely your engine is toast which is why the person sold you the car.

Dont leave it for another day. Do it tomorrow. Your warranty is 8 years or 100k miles. You want a new engine as fast as possible so it can stay under warranty. Make sure you have service records.

hope this helps

 

Starting Issues? START HERE.

 

Thanks alot for the help.

It seems like it needs a new cat conv and battery. Going to get it done tomorrow and hopefully this fixes the problem. I also have a problem with the radio/speakers, the radio goes on but it takes more than half hour for the sound to come out and it goes on and off, did you happen to have the same problem?

 

Your amp is on it's way out if you have a BOSE system.

 

Get the compression test first. A new cat and battery will be a ton of money, a compression test is like ~$100. You can also go to autozone and they will test your battery/alternator for you.