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JFP in PA

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Everything posted by JFP in PA

  1. JFP in PA
    There have been some video clips posted where the person uses a 9V battery as power source to test them out of the engine, but I have no experience with this type of test; if the unit does not assume an active position when energized in the engine, it has a problem.
  2. JFP in PA
    If the engine isn't changing when the solenoids are activated, nothing is changing because the cam angle is not moving; the solenoids are not assuming an active position when energized.
  3. JFP in PA
    Did you check your cam timing after getting all back together?
  4. JFP in PA
    No, it means you have power on the circuit, but it doesn't mean the solenoids are functional.
  5. JFP in PA
    Yes, if everything is functional and connected.
  6. JFP in PA
    Yes, you can test with a light.
  7. JFP in PA
    Yes.
  8. JFP in PA
    The oil pump is mechanically driven by the engine, you cannot "turn it on", the engine has to turn over to develop oil pressure. That said, you can pull the fuel pump fuse or relay and spin the engine over until it gets oil pressure, then reinstall the fuse or relay and you are ready to go. And yes, it is worthwhile to do,
  9. JFP in PA
    They may be the result of a DME "tune", common aftermarket tune factors are more timing and more boost.
  10. JFP in PA
    I think he is referring to ignition timing as "ignition angle".
  11. JFP in PA
    OK, here goes: It is easiest if the car is running. Yes on the pin to pin tests. P0140: Interruption of signal on O2 sensor after the main cat on bank #1. Diagnostics are to check the continuity of the signal wires back to the DME terminal #4 at the sensor to terminal 77 at the DME; terminal 3 at the sensor to terminal to terminal 46 at the DME. Also check both wires for potential short to ground. P0160 is the same tests on the other bank sensor. P1121 is for low heating circuit current on the sensor ahead of the cat on bank #2, again, a possible interruption or short to ground of the circuit. It is also useful to check ALL of the O2 sensors for normal voltage curve function; the sensor behind the main cat should be drawing a fairly straight voltage curve over time, while the one ahead of the cat on the same bank should be fluctuating voltage in a sine wave fashion: I my experience, it is very odd to have multiple O2 sensors fail all at the same time; usually this is a harness problem.
  12. JFP in PA
    Not necessarily, you would have to catch it in real time to see any difference. And, as all the diagnostic tests are electrical in nature, it would be worthwhile running them to make sure you do not have a simple wiring fault.
  13. JFP in PA
    P1531 indicates a problem with the cam adjuster on bank #1, indicating that it is not assuming the active position. Possible causes: Open circuit on triggering wire Open circuit on B+ supply wire Faulty actuator Diagnosis procedures: Check B+ power supply wire for voltage, repair wire if necessary Check trigger wire for continuity, repair wire if necessary If both are OK, replace actuator
  14. JFP in PA
    I would suggest you scan the car with a diagnostic tool that can read what coolant temp the DME is seeing, if it is not seeing any temp, you have a wiring or sensor issue. If the tool sees temp at the DME, the issue is the harness between the sensor and the dash, or the display itself.
  15. JFP in PA
    Welcome to RennTech The plastic gear set in these top's mechanism are a well-known failure point, I'd start there.
  16. JFP in PA
    Just tried it, may have been removed by the original poster....................
  17. JFP in PA
    That is definitely not "opportunity knocking". To replace the pinion bearing, the entire gear "tree" has to be disassembled, and some special tooling is involved as well (surprise, surprise). Another reason why for most, this is not a DIY project, but usually farmed out to one of the specialty gearbox shops.
  18. JFP in PA
    And just as a by-the-by, that pinion bearing is a $500 item at retail 😮
  19. JFP in PA
    Not necessarily. The other thing you need to consider is having to do it all over again if you guess wrong on which bearing it is, which is why most shops replace ALL the bearings when there is a problem.
  20. JFP in PA
    And just as an observation: Noises when loading or unloading the drive line are rarely related to the side carrier bearings; the more likely suspect is the pinion bearings......
  21. JFP in PA
    Welcome to RennTech The carrier shims are outside the carrier bearings, item #10 in this diagram: Pre load measurement: The backlash or free play should be in the range 0.12 to 0.22 mm. Here's a picture showing its measurement with factory tools. Have fun..................😉
  22. JFP in PA
    Welcome to RennTech 955-606-103-00
  23. JFP in PA
    Either an air pocket or a disconnected or dead gauge sender.
  24. JFP in PA
  25. JFP in PA
    Asking what a cat life span should be is like asking "how high is up". Multiple factors come into play, type of fuel use, quality of fuel used, how the car is driven, oil consumption levels. etc., etc. The factory cats were warrantied (thanks to the EPA) for eight years or eighty thousand miles. Only problems we have seen in aftermarket cats are performance consistency and build quality, so if you want a long-life unit, go factory.
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