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JFP in PA

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Community Answers

  1. JFP in PA started following M96 crank locked , Secondary Air system monitor won’t clear. No codes , Boxster Locking Issues and 6 others
  2. JFP in PA
    On the early Boxster's, it often takes a couple hundred miles of driving for these monitors to reset.
  3. JFP in PA
    You need a Porsche specific scan tool to see the faults, something like the Durametric system or a PIWIS system, no other scan tools will be able to see the faults.
  4. JFP in PA
    Either way, we like to clear the code and see if it returns.
  5. JFP in PA
    Diagnosing the car with the PIWIS system, replacing the DMTL tank leakage module if required.
  6. JFP in PA
    Not really.
  7. JFP in PA
    I would suggest contacting the compressor manufacturer and ask their advice as most of the PAG oil function is in protecting the compressor components. You can also purchase an AC flushing kit, which uses a solvent run thru the system to remove oil and any metallic debris from the system, and leave the entire system clean as it was new.
  8. JFP in PA
    P0421 is the code for a possible catalytic converter issue. Get the car scanned with a Porsche specific scan tool and check the O2 sensors for correct function.
  9. JFP in PA
    The code is for an open circuit, which are usually harness related.
  10. JFP in PA
    Battery reserve capacity are directly correlated to their size and weight (bigger and heavier, more metallic lead and lead oxide, which equals more capacity). Long before I would be looking at an Optima, I would be considering the Odessey AGM battery line. And yes, I was an Optima fan for many years, but after several ownership changes, we started to see brand new Optimas that were 7-8 pounds lighter than the same model they replaced, which is not a good sign.
  11. JFP in PA
    Only valid resources would be the diagnostics listed on a PIWIS system as none of this information was ever in print. Using the list I provided, you should be able to assume some basics like wiring continuity, wiring shorts to ground, voltage readings, does the cam angle change when activated via Durametric or PIWIS, etc. You need to remember that even the OBD II diagnostics manuals for the earlier cars only provided a sense of direction, not a set of directions. You need to get out your digital multimeter and start poking around............
  12. JFP in PA
    Probable Causes: Control Line Circuit Open Control Line Short Circuit to B+ Control Line Short Circuit to Ground Fuse Faulty Solenoid Hydraulic Valve Faulty Voltage Supply Circuit Open Diagnostics time..............
  13. JFP in PA
    I believe you are actually referring to a P0010, which is typically the code for an "open circuit" on that bank 1 sensor.
  14. JFP in PA
    Before you recharged the system, did you fully evacuate it to remove any moisture? If you didn't, you need to recover the current gas charge, evacuate it, and then recharge it along with any required PAG oil.
  15. JFP in PA
    There are very few rebuild shops for the M96/97 engines, even fewer good ones, due to the lack of credible published internal specs and the incredible number of specialized tooling required and a total lack of oversized bearings for cut cranks. Normally, when the internal and external journal and shell bore diameters are good, the only way that the crank locks up upon assembly is either the crank or the carrier do not align true (one of the other is bent).
  16. JFP in PA
    Something does not make sense here; if the difference between the crank journals micrometer readings and the bearing "cage" internal diameters with the shells installed and torqued to spec is 0.002, there is no way the crank should lock up unless the crank carrier is warped by the new bolts or one of more bearing shells are installed incorrectly. If it does need to be line honed, you should try LN Engineering in Momence, Illinois; they are one of the leading machine shops for these engines.
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