Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

JFP in PA

Moderators
 View Profile  See their activity

  • Posts

    8,852

  • Joined

  • Last visited

  • Days Won

    211

 Content Type 

Everything posted by JFP in PA

  1. JFP in PA
    Should be possible, just watch the wire size and make it as close to the harness as you can.
  2. JFP in PA
    Welcome to RennTech The factory radio had a ground wire that had to be attached to the car's chassis under the dash as a simple anti theft device. If that ground is not there, the immobilizer will prevent the car from starting.
  3. JFP in PA
  4. JFP in PA
    Both the low and high pressure switches must be in the closed position in order for there to be a complete electrical circuit to engage the compressor clutch. I would be looking for continuity across the terminals on the switch, which would indicate that closed position.
  5. JFP in PA
    Should be under the windshield cowling where the battery sits.
  6. JFP in PA
    Your problem may not be the sensor itself; P0335 means the DME is not receiving a viable signal from the sensor, which can also be caused by a wiring harness problem between the sensor and the DME.
  7. JFP in PA
    Welcome to RennTech To my knowledge, there is no "kit", you have to order all the components separately. A good parts desk, like board sponsor Sunset Porsche in Oregon, could quickly put together everything you are looking for. That said, I also would not be using silicone for coolant lines.
  8. JFP in PA
    I do not, we normally stock a variety of wire sizes and colors, heat shrink tubing, connectors, zip ties, and the like that we source from a local electrical vendor, but you can find similar supplies from multiple sources like WireCare.com | Your Local Cable Management Superstore! WWW.WIRECARE.COM WireCare is your online wire & cable management superstore. We have what you need for connecting, harnessing, & beautifying all of your electrical projects. We carry the highest quality... .
  9. JFP in PA
    It is always best to solder the wires back together and then heat shrink them for weather proofing. A lot of sensors, like the MAF, use factional voltage signals that don't do well when crimp connectors are used, so solder is the way to go. 👍
  10. JFP in PA
    Here is the documentation from the Porsche DME manual P0327 210 Knock sensor 1 - below limit Diagnosis conditions • Engine speed more than 3600 rpm • Engine load greater than 45 % Possible fault cause ♦ Break in wiring or short to ground ♦ Contact corrosion on the connector ♦ Knock sensor loose ♦ Short circuit to B+ ♦ Knock sensor ♦ When a fault is stored, the ignition angle is retarded for all cylinders in the range in which knock control is active. ♦ Knock control adaptation is inactive. ♦ If knock control becomes active here, this may indicate engine damage (increased noise level) Affected terminals Terminal III/49 and III/50 Diagnosis/troubleshooting
  11. JFP in PA
    That code is usually associated with lower than expected voltage signal from the sensor, which can be a wiring issue or a problem with the DME itself.
  12. JFP in PA
    What test pressure are you seeing when you attach a mechanical gauge in place of the pressure sender? Are you seeing the presence of ANY ferrous metal specs in your oil filter or oil?
  13. JFP in PA
    You can evacuate the system, and recharge it along with a small amount of UV dye, which will leave a tell tale dye mark at the source of the leak(s).
  14. JFP in PA
    Both the keys and the Immobilizer need to be coded to the DME, which requires both a PIWIS system and the factory code ID tags for both, which you will never find with used components and why the recommendation to swap all together. Porsche purposely made the system difficult to prevent vehicle theft.
  15. JFP in PA
    If you haven't already, change the oil cooler order to the "S" model; that cooler is nearly twice the size of the base cooler and fits right in. Once of the best longevity mods you can do to one of these engines .
  16. JFP in PA
    Welcome to RennTech If you have a head gasket failure, it would be the first we have ever seen as the heads and engine case are an aluminum alloy while the head gasket is steel, so case or head failures are more common. Common intermix areas are the oil cooler, cracked cylinder sleeves, or a cracked head. Good luck...........
  17. JFP in PA
    For the part time DIY user, the Durametric system is probably the best choice, it is a software based system that runs off any Windows based laptop and can do perhaps 85% of what the factory PIWIS system can do but without the $20,000 starting price tag of the PIWIS system. There are a lot of OBD II scan tools that claim to be Porsche specific, but we are yet to see one that really is or can even come close to the Durametric software. As for how to test, "search" is your friend. There are multiple threads and videos both on this website as well as others that can walk you thru the processes to evaluate your potential problems.
  18. JFP in PA
    U0404 - Software incompatibility with transmission control module - signal implausible. A U0404 code on a Porsche 997 indicates an issue with the Electronic Shift Module (ESM). Specifically, it means the Powertrain Control Module (PCM) or Transmission Control Module (TCM) has received implausible data from the ESM. The ESM itself could be malfunctioning, sending incorrect data. The Transmission Control Module could also be the source of the problem, either by not processing the ESM's signal correctly or being faulty itself. Damaged wiring, loose connections, or corrosion in the wiring harness connected to the ESM can also cause communication errors. Some deeper diagnostics are going to be needed to decide how to proceed.............
  19. JFP in PA
    Welcom to RennTech Before considering replacing ANYTHING, first do some diagnostics: Using a Porsche specific scan tool, check for any pending codes, check all four O2 sensors for function and voltage readings, check the MAF for voltage readings, and run A/F ratios; then and only then will you have the information about what, if anything, needs to be addressed.
  20. JFP in PA
  21. JFP in PA
    I would be checking the power supply wire to the actuator to measure voltage and voltage drop.
  22. JFP in PA
    Not really, I don't think the bolts will completely come out with the coolant pipe in the way.
  23. JFP in PA
    Try looking along the lefthand kick panel/carpet, you may need to remove it to see it.
  24. JFP in PA
    I would be VERY suspect of any vehicle with VIN numbers defaced or totally missing. 1988 Porsche Carrera obd port location Your 1988 Porsche Carrera, being an older model, won't have the standard OBD-II port that is found in vehicles from 1996 onwards. Instead, it will have a pre-OBD diagnostic connector. 1988 Porsche Carrera Diagnostic Connector Location: 12-pin rectangular diagnostic connector: The 1987 and 1988 models utilize a rectangular 12-pin diagnostic connector. Location: This connector is located on the ECU mounting panel. It was intended to be used with the Porsche/Bosch 9268 interface, also utilized on 944 models of that era. Important Notes: ECU Location: The DME (Digital Motor Electronics) control unit (ECU) in a 1988 Carrera is generally located under the driver's seat. 1989 models and later: Porsche began using a round 19-pin connector in the 1989 models, which is located under a cover at the passenger seat. Adapter Needed: To use modern diagnostic tools, you will likely need an adapter cable that connects the 12-pin diagnostic connector to a standard OBD-II port.
  25. JFP in PA
    There are multiple possible reasons for coolant getting into the oil; a cracked head or cylinder liner are not uncommon, but often not the source of the issue. These cars use oil to water oil coolers, one on the engine, the other for the trans if it is Tip equipped. Long before I would be ordering in another engine, I would be pulling these coolers and either pressure of vacuum test them for leaks. If the cooler(s) fail the test, that is your source of the problem; if they pass, you may have bigger issues. Good luck.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.