Hi
got a big problem on my FD3s:
the second Turbo is coming very late,
it varies from 4500 to 7500rpm.
only know it\'s not the ECU,
i tried both the original and the apexi power FC
hope anyone can help me
greetings Michael
I would suggest looking at the Charge control valve/Piping for it, i know some one that had a similar problem. Its also quite easy to test, Let the car idle for a few minutes then knock it off, if you now pull the vac pipe off the Valve there should still be a vacuum if its good.
If that doesn\'t help read the link below.
http://www.autosportracetech.com/RX-7/TurboTroubleshooting.htm
I had similar problem on mine. Turned out that when Mazda put the crate engine in they crossed 2 vac hoses around (like what Grizzly says) My boost would come in at around 6krpm! :eek