Im having an issue In my 2004 5sp AT....Car Idles fine and revs fine till 5k rpm, then feels like I hit an Invisible rev limiter. Check engine light flashes about 30 times, then light goes away. No other lights come on before, during, or after that time......At first codes were misfires on all Cylinders, Random misfire code, and P0443 EVAP Canister Purge Valve Circuit Malfunction. Then the motor was stock. Thousands of dollars later and now with a J36 built motor, only thing stock on it is the Intake Manifold, and fuel injectors. Fuel pump was last thing replaced, and still same issue......I dont mind waiting for a tune but im hesistant because i had the problem on the stock motor. I can really use any help offered....

 

Not sure about your problem.. But I would run the rdx injectors onthe 36.. Hope some one can help..

 

random misfires and every cylinder misfiring is a huge indication of a vacuum leak! check all vacuum lines and you may have to change your charcoal canister and purge valve

 

OP, are you using the same ECU/PCM? Has it been flashed with the latest firmware? There is a TSB for the 04/05 for a MIL at high rpm.

 

Original ECM, haven't flashed it. Saw the TSB about the MIL, but I thought it was for the 09/10 S-AWD....Do you have a link for the TSB?

 

I've been looking into the rdx injectors also, but in my searches, none of the results told what year RDX injectors and what year Scion Tc pigtails to use. Can anyone clear that up?

 

If the only thing left of the original is the ECU, I think you know where the problem is.