kvttrs

iTrader: (1)

Hey guys, tried to drive my car this morning. Something happened and it's now completely undrivable.

Car: 1993 RX-7 (FD3S)
Trim: Touring
Miles: 100k
Mods: None

symptoms: Unable to rev the car at a normal pace on and off gear.
"poping" sounds from exhaust outlet gradually become louder/violent when the throttle is held.

demonstration:
Note: Car is not in gear and is stationary.
Cluster does not operate per OEM specification.
1st part: full throttle quickly, hold throttle. listen to noise
repeat demonstration.
2nd part: full throttle very slowly to avoid bursting sounds, may sustain rev as long as i maintain a slow and steady pace.
repeat demonstration
3rd part: full throttle at a normal driving rate, listen to noise. let off seconds later.

boost gauge will not pass 0psi at anytime. engine will not rev any higher when symptoms occur.

I just shot a video and uploaded it.

Please refer to the video link below.

https://www.youtube.com/watch?v=IvDo...ature=youtu.be

<iframe width="560" height="315" src="//www.youtube.com/embed/x1nrwHMIG8U" frameborder="0" allowfullscreen></iframe>

djseven

iTrader: (56)

You are in limp mode. Run your codes and search only a handful of issues will cause it. Most common are omp failure, knock sensor wiring or going non-sequential and no emissions without installing 330 ohm 1/2 watt resistors.

kvttrs

iTrader: (1)

It'll be my first time attempting to grab a code. wish me luck. brb.
thank you for your prompt response btw.

kvttrs

iTrader: (1)

Please refer to the video link below for a video of the CEL code:

I need help deciphering it. I'm not too sure if I'm reading it correctly.
i'm reading
30: Solenoid valve - split air bypass
39: Solenoid valve - relief 2

solutions or meanings?

https://www.youtube.com/watch?v=6ZdJ...ature=youtu.be

K-Tune

iTrader: (26)

looks like 30, 39, and 44

kvttrs

iTrader: (1)

30: Solenoid valve - split air bypass
39: Solenoid valve - relief 2
44: Solenoid valve - turbo control

Not sure where to start. Part numbers, and what's relief 2? I'll search more.
Any help is greatly appreciated.

pictures of parts (installed) would be nice.

Tem120

iTrader: (5)

turbo relief and split bypass , are the 2 blow off valves that come out of the Y pipe just above the turbo , Normally they are plastic and one is brown The other black , and the hoses go into the stock air box .

Second , The turbo control . I'm not sure what code causes the turbo control to go off I've never even driven on the stock ECU , But start with the easiest thing which is the Waste gate control solenoids , thats the 2 solenoids that are together infront of the upper intake manifold on the passenger side of the car it is right behind the plastic air tank . I dont know if that would cause the ECU to go into limp mode , BUT if I were a mazda engineer , and the waste gate / pre control solenoids were bad . I'd definitely make the car go into limp mode so it doesnt over boost and go boom .

jacobcartmill

iTrader: (6)

44 will cause the hard limp mode (link from my old thread on this topic https://www.rx7club.com/3rd-generati...mode-784617/):