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MagnusO

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Everything posted by MagnusO

  1. So, picked up the vehicle today. No CEL and it runs beautifully. Have driven it through 3 cold starts and 80 miles so far, so I figured if the light was going to come on it would have done so by now. Total cost for the cleaning was $2,300 and it was pretty much all of it labor cost + a couple of gaskets & cleaning liquid. The work involved taking off intake manifolds and heads, and clean up all the ports, valve seats, and other areas through which air passes. Once the job was done the shop took it to get an emissions test done just to be 100% certain that the problem was solved, and the ve
  2. I'm sorry but I have no idea, I'm not a mechanic... My indy mechanic says they tested all the vacuum lines & reservoir before resorting to the cleanup method. We will know soon enough if it worked I guess.
  3. For clarification, they're not entirely clogged up, just enough to have the airflow differ from one side to the other. It is that difference that triggers the CEL. I have given the indy permission to proceed with a cleaning and will report back on whether it worked or not.
  4. The shop has the Durametric and a Porsche Gold Meister technician on staff, so I’m confident they’ve tried to simply reset it. The most likely culprit is gunked up inlets on the cylinder heads causing a restricted airflow, or that’s what they tell me. The car has just reached 100k miles and it is not uncommon for them to get this way apparently. It’s 15-16 hours of labor to disassemble & clean everything, hence the cost. Since I plan to sell it soon I’m leaning towards biting the bullet and making sure the next owner gets a clean engine. We’ll probably do gaskets and other stuf
  5. My 1999 C4 Cab threw a CEL a couple of weeks ago. Codes were P0410 and P1411, indicating a problem with the SAI or secondary air injection system. I read up on the forum and found many helpful topics related to these codes, and who the likely culprits were: SAI pump or either of the two valves that regulate the flow to/from the engine. I could check the SAI pump myself and it was working fine, so I assumed the problem lied with the valves. I decided it looked too complicated for an aspiring hobby mechanic to tackle (lots of vacuum hoses and stuff to remove) so I took the car to my
  6. I had the same symptoms on my -99 911 C4 Cab that I bought this past January and they were resolved with a full service on the transmission. My car had 99,500 miles on it and service invoices going back to 2003. I looked through them all and found no mention of the transmission ever having been serviced properly. According to Porsche it should be done at 90,000 miles so it was already overdue. The difference is night and day, and the transmission now shifts smoothly with no slipping or strange revving happening. I have read on other forums that the transmission may need to be serviced before t
  7. Hi guys, I bought my 1999 Porsche 911 C4 Tiptronic back in January and I've been doing little projects on it ever since. I used to have a 2016 Dodge Challenger R/T Scat Pack with a 6.4 liter V8 that I traded in last summer, but I was missing the sports car feeling too much so decided to buy the Porsche. One of the things that stood out to me on the test drive was just how sluggish and unresponsive the Tiptronic gearbox felt compared to the one I had in the Dodge. Since the rest of the car was in very good condition (invoices for every oil change & repair going back to 2003, IMS
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