I have an 1988 Mazda rx7 TII

It starts up fine, but if I rev it passed 3000 rpm it will shuts off and DIE...
The engine will then get flooded...
I don't know what's the problem...
The engine is mostly stock... stock turbo with aftermarket inter-cooler piping...
It will also DIE when I'm driving it if the rpm goes passed 3000 rpm...
Does anyone know what's the cause of it...
I am getting a headache...
Also, would tuning the FC help solve the problem?

Are there any Rx7 FCs owners near by that are willing to come and help...
I am from Minnesota...

Any help would be appreciated... =]

 

check your tps

 

1. Check for codes
2. Do the closed loop test--led should be on (rich) throughout full throttle operation--does it go out (lean) as the engine dies?
3. Backprobe the pins on the ECU connectors, see if any are out of spec per the FSM

 

HPI-R... You might have to check your fuel system and sensors. I'm not too familiar with the s4 electronics but I can help out with what I know. PM me if you want to chat...

It does sound like an air-flow meter issue though from the 3000RPM cut-off/flood. You will have to go through the whole troubleshooting procedure to pin-point it such as checking the basics like timing, pressure sensor, TPS (like already mentioned), ect...

I am somewhat leaning towards that AFM though....

And no, tuning won't help if your sensors are the problem.

 

Im from around the minneapolis area and have a tII afm ecu and pressure sensor if your interested in trying them to see if your problem goes away

 

sounds like an afm problem. id try replacin it with another and check to see if the problem persists.

 

hey! that would be great... when are you available?

 

the TPS is kinda loose...

 

okay... I have replaced the coils, spark plugs and wires...
I don't want to replace anything that don't need to be replace so if anyone could come over and take a look at it that would be awesome...