Hi guys
I have really strange problem on my car, was searching for answers through Google but found only questions.
Here is the deal:
I bought R34 with RB20DE and manual gear box,
engine was swapped with RB25DET from R33 series one
wiring i didnot change coz i had no wiring loom from r33 with ABS so i decide to adapt R34 wiring to R33 engine, was needed some adaptation especially with cas and few more sensors
ecu is used from R34 gtt with nistune board inside
Car has the problem, during the acceleration with load it has fuel or load cut at 3000-4000 rpm, cut mostly looks like RPM limit
Dont know where to find problem, change everything few sensors maf even fuel pump, took the car on dyno to measure boost and its standard, i mean car cuts at 5 psi of boost, boost leaks, spark plugs, gap and timing, all this procedure i have done but no success
Maybe anyone had similar problem during the swapping rb?
only thing i have left is change cas, they are different type on r34 and r33 s1, that will be hard and easiest is to change wiring to r33 and run on Z32 ECU, but am not sure that this can help, found over the net same problems and nobody writes how they fix the problem or what was the reason
Ah and yes cuts at different rpm depending how the ignition is set
thanks in advanced and looking for some help