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The Radium King

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About The Radium King

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  • From
    Canada
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    2000 Boxster S
  1. ok, so you changed the dme when you changed the abs controller. wonder if it is possible to just do the abs conversion.
  2. hi - any update? the mechanical swap seems straight forward, but wondering about the electronic side of things - the 2002 controller is canbus and the wheel speed sensors are different as well, so wondering if the 5.7 controller will even work with a 7.2 dme?
  3. ok. no codes whatsoever and had flat spot issue with maf connected. disconnected maf and got maf and iat codes but same flat spot at same place. my understanding is that, with maf disconnected, computer defaults to fueling based on throttle position. this would indicate an issue with throttle body, no?
  4. I actually disconnected the maf altogether and got the same result.
  5. so, logged pedal position and throttle position; pedal is fine but throttle flat spots. time to swap in a new throttle body.
  6. I was thinking there might be some congealed goo sticking the TB at one spot on its trip through full range of travel - all my testing has been at no load so the sticky spot might be consistent. opened it up and no goo, so going to try logging pedal position, throttle position, maf and rpm; might be a flat spot in the pedal pot. thanks all; i'll report back.
  7. so, update. cleaned the maf, fired it up, same issue. cams seem to be working ok from the log, maf still flat-spots at 5500 rpm. so, logged throttle position and it looks to do the same thing. so, it looks like the throttle body is jamming or something. anyone heard of such a thing before I tear it apart? on another note, when I activate the valve lift with the pst 2, the car stalls - this what is supposed to happen? cheers, trk.
  8. well golly. I ran my pst2 and logged rpm, maf output, cam positions and throttle positions. everything seemed to track appropriately as I worked through the rpm range except the maf signal - it does a little spike at 5500 rpm then flattens out ... i'll try cleaning it or swapping in a known good maf.
  9. hi there. have a 3.6L X51 engine that is new to me. it seems to have a hang at 5500 rpm. if i'm hard on the throttle it'll move right through it, but if I pass through it slowly it'll hang for a sec then continue to rev. I thought it might be a gummy resonance flapper but no dice. no codes. deviation is good. I do have a pst2, so if anyone has any advice, can tell me what to look for, or point me in the right direction I would appreciate it.
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