Hi everyone,
My rx8 have now 60000 miles on and is starting to give me problem.The last few days the car ran good after start up.As soon it heats up it start stalling and after many start attempts it will start and run fairly good.I changed the coils,checked compressor with a cylinder engine compressor tester and compressor measure front rotors 83 psi (6.0 bar)the rear rotors 87 psi(6.0+ bar).Need help cannot drive the car like that.
thanks

 

What do your plugs look like?
Did you replace your plugs?
Any CEL?
Does your car search for an idle or does it just die?
Any mods?
Any power loss while it is running?

 

Using a standard compression tester will yield no usable data. Take it to a dealer or rotary shop and have it tested. It sounds like bad compression.

 

Waiting for the plugs.Not available at mazda dealer.
No CEL,no codes either.
It just die.It can run for a week without stalling and all of sudden it starts again.
In order to keep engine running i have to keep my foot on the gas pedal and hold to 1000 rpm to keep the engine running.
No mods,full stock
No power loss only if i don,t keep rpm at 1000 it will die.

thanks

 

The standard compression tester will at least give an indication.The dealer here has one rx8 whit starting problems for almost one year and almost $3000 spend on it.And still the car is sitting there.Sending my car there will be the second standing there for a year or more.
thanks

 

Could be a vacuum leak, MAF sensor failing/dirty/bad, or throttle body valve sticking/failing, assuming it isn't anything you listed as checked.

 

A piston compression tester does not indicate anything actually. In order for a compression test to mean anything you need compression numbers from all 3 faces of the rotor.

 

Why are you asking for help if you have all the answers?

Compression test takes 30 mins and costs $80

 

Inspect them even though you can't replace them...you might be able to diagnose the problem down to the plugs with a wire brush.

 

Here in our small island we only have one mazda dealer and they don't sells the RX and they don't have the equipment to fix or diagnose them.I bought this car from the USA used.I had a RX7 before with 0 problems.I hope you understand this.
thanks

 

Will do and keep you post.
thanks

 

I see sorry for the confusion. Hopefully its an easy fix.

 

Hi again,
Yesterday i went to pick up the plugs.I changed the plugs and them go for a test drive.And the very same thing happen.This time before he stall the check engine start flashing.When i reach home i scan and got the following codes.P0223,P0123,and P0506.What i have notice about the stalling is,only when the engine is hot.Cold engine it drives ok.
thanks for any help.