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About jpurban

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  • From
    Omaha, Nebraska
  • Porsche Club
  • Present cars
    2001 911 (996) Turbo Coupe
  • Former cars
    1996 Corvette Collector's Edition (LT4)
  1. FYI... Powdrhound at 6speed replied to my inquiry... https://rennlist.com/forums/996-turbo-forum/1084729-997gt3-mc-in-996tt-abs-psm-issues.html#post15173164 Looks like the 997 GT3 MC is NOT compatible with the 996 PSM/ABS. At this point, I'm pretty sure that is why my ABS/PSM is throwing the 4600 Pressure sensor error. At some point, I'll go back to the stock MC, which should restore my ABS/PSM, but I'm in no hurry since the 996TT MC doesn't feel great (too spongy) and costs a ridiculous $580 or so. Frankly, I've driven the car for years without PSM/ABS with no f
  2. Anyone have any experience trying to run the 997GT3 MC (99735591030) alongside the stock 996TT PSM/ABS system? Would love to hear from anyone that encountered problems or success...
  3. Benjamin, If your fault is like mine, every time the car exceeds approximately 30 mph for the 1st time following start, the 4460 error is set. I've read somewhere that the car does a diagnostic test at 30 mph or so. I'm not sure what this diagnostic is testing -- haven't been able to identify. John Update -- My problem was my brake master cylinder. You have to use the stock MC if you want the ABS/PSM to work. Somehow, the OEM internals are special. I used a 997 MC that was operationally equivalent, but the PSM/ABS hated it. Once I switched back to a (new)
  4. Loren, thanks for the quick reply. My front circuit bleeds just fine thru the block... Flow at V, VL, VR as well as both front calipers, but I'm getting nothing from the rear outlets ( HL & HR). I've removed the input line from port H and verified there is fluid in the ABS block. Master cylinder was replaced and is now working as it should. New MC was bench bled before installation along with inlet tubes to minimize any air entering the ABS.. MC was replaced because rear circuit wasn't flowing, which might explain why the EBD would have closed the rear circuit (sensed low press
  5. Running into some trouble trying to bleed my rear brakes and I've isolated the issue, but don't know how to resolve it. Hoping someone here more familiar with the PSM module might be able to help. Issue: I'm using a Motive bleeder and have good flow into the "H" (rear) input port of the ABS block, but I have no flow from either the HL (rear left) or HR (rear right) output ports of the ABS block. I know the PSM system doesn't have a mechanical proportioning valve, but could the system have electronically isolated the rear circuit? If so, any idea how I might reset it? That could
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