Hi everyone, i drove my 2004 mazda rx8 to class like any normal day but when i came to crank it afterward it wouldn't start. after taking off the fuel pump relay and fuel pump fuses off i started cranking the car while having my foot all the way on the gas and it didn't work. i changed the spark plugs (the old once were nearly dead) and i already have LS1 coils on (had them on for like 2-3 months now) new spark plugs wires too and replaced the starter not too long ago too with a duralast starter. i also tried taking the spark plugs out and the fuel pump relay, fuel pump and the circuit fuses and cranked the car for 8-9 seconds while waiting for 30 seconds in between to see if any oil/gas will come out of the spark plugs holes but nothing came out. also the spark plugs were not dirty when i took them out again after a couple of attempts to "deflood". so that's why i came to the conclusion that its not flooded. i can also hear the fuel pump kick in as soon as i turn the key to ON and my gas went from a quarter to an Empty while try to crank the car which means that the pump is ok ... right?
Last note: my 8 was flooded before and i've deflooded it using one of the common procures and the sound of the car when cranking it kept getting better every time i keep trying, but this time it did not change at all, it will just keep cranking normally without showing any signs of starting
Any suggestion on what to do and what the source of the problem is ?
Thanks you guys in advance !

 

Sounds like you're out of gas....

 

I did put more in its at a quarter now

 

Where in Ohio are you located? If you're close by I'd be happy to lend a hand getting the car running again.

I would start by removing the fuel feed line from the hard line and placing the open line into a cup. Cycle the key and see if you get gas coming out of the feed line. You can also try this while cranking the engine over. This will tell you if you're getting gas to the engine. Let's start there.

 

Fuel, air,spark. The three things needed for ignition. So sounds like you are not getting one of these. Fuel delivery is the suspect here. Test as Mazdaverx7 suggests.

BTW you should NEVER run your RX8 down to 1/4 tank or below if at all possible.. Exposes the fuel pump out of the cooling fuel . Sure way to overheat and hasten the death of a Series 1 fuel pump.

Starting the Engine
• Starter
• Battery
• Engine Compression
• Grounding Wires
• Ignition Coils
• Spark Plugs
• Spark Plug Wires
• Fuel Pump
• Fuel Injectors

 

You used a quarter tank cranking the engine?

 

i'm in Akron. and i'll do what you said and get back to you with a video if possible.

 

i will start by doing that. and i did not know that before thanks for the info !

• Starter ( new)
• Battery ( going to get optima redtop soon)
• Engine Compression ( got it tested it was fine)
• Grounding Wires ( did not have problem with them before but will check to make sure)
• Ignition Coils ( LS1 coils )
• Spark Plugs ( new )
• Spark Plug Wires ( new )
• Fuel Pump ( going to check that)
• Fuel Injectors ( going to check that )

thanks for the reply appreciate the help really !

 

Almost a quarter

 

i'm going to post a video soon to show how the car sounds like when it cranks

 

You're a little over an hour away. If I can be of any help let me know.

 

I'm having exact same problem, new battery upgrade starter just put on, today brand new plugs and just won't fire. Removed plugs and I can see and smell fuel on the plugs def not defloodef as we jump started car and an hr later same problem so I'm at a loss, if you resolved your issue let me know so I could try the same thanks

 

Thank you very much! I couldn't work on it during school days, but i'll def put some work to it today and all this week and i'll let you know when i reach a dead end

 

Will do man