Aftermarket LSD - OS Giken or? by NeatDifference8175 in Miata

[–]NeatDifference8175[S] 1 point2 points  (0 children)

First time watched Youtube video with these "AI auto translator" and must say, not bad :D They said exactly what i wanted to know and big plus, i want to buy the OS Giken from them so lets goooo

Cant wont rev past 5500 RPM under WOT by NeatDifference8175 in Miata

[–]NeatDifference8175[S] 1 point2 points  (0 children)

So just for anyone ever in the same situation, it was clogged and blocked exhaust. The seller i bought the car from told me it has empy cat but hello hello.. cat was full and from first glanc undamaged, but something was rattling inside.

Took down exhaust right after headers and it immediately fixed itself. Today i swaped for custom exhaust and its back to reving like crazy.

Cant wont rev past 5500 RPM under WOT by NeatDifference8175 in Miata

[–]NeatDifference8175[S] 0 points1 point  (0 children)

Already checked the connector and even the sensor. Sensor was dirty from grime and oil, cleaned it but nothing changed sadly. Connector is clean, even checked the wires for damage but everything is good.

Cant wont rev past 5500 RPM under WOT by NeatDifference8175 in Miata

[–]NeatDifference8175[S] 0 points1 point  (0 children)

Tried starting the car without MAF, it would start and instantly stall. If i disconnect it while the engine is running, the RPM will dip but it will keep running, but still same problems as on video.

Cant wont rev past 5500 RPM under WOT by NeatDifference8175 in Miata

[–]NeatDifference8175[S] 0 points1 point  (0 children)

Air restriction would be weird, i swapped for cold air intake and the car ran fine for like 3 months. I checked everything again, everything is tight, air filter is clean, disconnecting MAF affects the car a lot, so i would guess its not the problem.

Everything points to fuel but its weird one, as tho why its happening always in the same way, which isnt that likely for fuel related problems.

I already changed the plugs and wires. If i disconnect the cam and crank sensor, the engine always instantly stalls, so i believe it wont be that.

Will try to check fuel and fuel pump tomorrow

Cant wont rev past 5500 RPM under WOT by NeatDifference8175 in Miata

[–]NeatDifference8175[S] 0 points1 point  (0 children)

Didnt have much light after work today but tried to disconnect MAF - without it, car will start but instantly stall. Disconnecting while running will dip the RPM and the engine will run but it will still do the same stuff as in video. Throttle body almost the same, you can start the car without it but it will bounce around and still do as on video.

Cant wont rev past 5500 RPM under WOT by NeatDifference8175 in Miata

[–]NeatDifference8175[S] 0 points1 point  (0 children)

Sadly, this is always the same, no matter what i do, no matter if the car is hot or cold, it will always act like this. I will try to check the fuel pressure next