ziiz996

My money is on a dying fuel pump. When it is hot, it is failing. My 986S track car did the same thing. If I let it cool - sometimes that was a couple of hours - it would start. When hot, I had to pump the pedal, and then it sputtered, coughed and backfired. It would run at idle no problem, but when it demanded more pressure, no go. Longer I let it go, the worse it got. It is an easy DIY-er BTW. Have you looked at where the filter sits? It is behind 2 huge cooling pipes running along the length of the car!

When I drive my car in the summer for a while (hour or so), park the car, then restart it in about 30 minutes or so, the engine turns but the car stalls. If I restart it with a little more gas and rev it a bit, it starts but kinda the hard way. The car runs fine after that. Every once in a while, if I warm start it with the throttle half way, it kinda starts with a "loud noise". I wanna say that the noise might be a slight backfire. Any suggestions?

This is ridiculous for you to pay when you had a warranty onthe car!!!! THey should at least pay for 50%...

Did you have a look at the TSBs? There are couple related to door rattles. What is a TSB Loren?

Anyway you look at it, it is absolutely worth the money. Your car is going to look stunning. So spend the extra G and do not try rewiring. Your wiring harnesses do not have the girth to handle Xenons. Once you look at the harnesses, you will appreciate their values. TOP NOTCH MATERIAL AND WORKMANSHIP..

Take it out for a few runs on good dry winter days. You will be amazed how much more powerful this engine is when it is running cooler. Don't miss out on the fun! Just make sure to pick your days...

Not in VA. So Don't worry. Not worth mentioning the name... However be aware that the engine transplant will not be successful if you do not replace a whole lot of other parts on the car (Another 6 to 8K Plus Labor$$$). The VarioCam Plus will not function and therefor you end up with less power than the 3.4. My recommendation: If your engine runs fine, then either bore it out to 4.0L (Under 10K) and kick some serious NA bu&**% or Supercharge (RUF$$$$$ or TPC(11K'ish); I don't like the third guy; low end torque and then all hell brakes loose at the last 1500 RPMs which I think will put a lot of load on an engine that I have come to realize is sub-par by Porsche Racing Standards: (wet Sump and manufactured in Japan!!)) GT3 or Turbos have Dry sump and are developed and manufactured at Porsche Racing division). If your engine is on its way out, then trade it in ASAP and get an 04 GT3 or even an 01+ Turbo. At least you know that your are paying your money on cars that were designed to be driven (instead of being shown off). DON'T DO IT. If my tuner wanna be was honest with me up front, I would have sold my C2 Cab (dead engine in my case) for as low as 20K and invested the time and $$$ that I spent so far on a used GT3 or a 996 Turbo. TRUST ME not the guy who is using you passion for driving high performance cars, to take your MONEY.

Look at the 3.4 to 3.6 conversion nightmare post first...

So Sorry Todd! :oops: I managed to leave out the extra column for the second bank of connectors on the sheet/table that I sent you. I was trying to make it simpler by making it look more like the connectors. (L and R side). Feel free to add columns or extra rows per table if you prefer. I TOTALLY understand that this is not a small job. But I really thought that you must had gone through the diagrams first, wrote down the conversion charts of you re-connections on a sheet/table of some sort, then re-wired, instead of re-wiring directly from the diagrams! Thanks, Jacomo.

Yes, together. http://www.renntech.org/forums/index.php?s...ost&p=83062 Thanks Loren. Now I know that my Lo speed fans are not working. At one point only the passenger Lo speed fan came on at the lower temp. And "our famous Tooner"(Sorry I have the word Looser on my mind) tried to convince me that Only the passenger Lo speed fan comes on at the low temp setpoint!! But he even somehow managed to disable the Pass Side Lo speed fan on one of my many drop-offs at his shop after his allegation that the "job was complete". Thank you again.

Todd, If you could help with the conversion tables I would really appreciated. J. Todds_Old_to_New_Connector.doc

Loren my Dear Porsche Nut, Do you know the lo speed fans kickoff temperature for an 02-04 996? And the Hi speed temps as well? Are both left and right fans supposed to come on together? at lo and ho speed? They used to, before the transplant!

Sorry Loren, I thought you and or Todd documented your work. I am sure Todd didn't just start wiring his cluster after having a few scotches at 2AM on a Sunday. He must have some kind of a 1 X 1! If not I will share this info with the ROW when I get mine converted. J.

Where do I get those tools? I was able to connect with an 04 Cluster and the 3 new connectors in back. Do you or Todd have the 1 X 1 conversion schematics? Loren, Do you think I should replace the whole harness? J.

Hi Todd, Thanks again. As far as going to Kansas, that could be accomplished maybe in better weather. In the meanwhile: What did the harness cost you? And Where did you get it? Do you have wiring diagrams for those connectors (Old to New?); I am starting to think that it makes more sense to completely replace he harness with an 02-04 if I can get a deal on it. What do you think? I will send you a PM to tell you the name of the shop. I have to run it by someone first. Try to get me the connection conversions There are only 14 pins on the old and I believe 16 or 18 on the new connector. I can PM you an MS Word Table that shows old versus new pin connections and you can fill the info in Word and PM it back to me. By the way, the current 3.6 that you have had how many miles on it when you bought it? And how on earth did you figure out the wiring for the new connectors? Time, patience and wiring diagrams. I don't know what else to say, until you get things installed properly it is just guessing what is wrong with the car. If you can get the car to me, I would be glad to help out with it, otherwise I don't know what other information I can offer. Todd

TODD, Where did you get the 3 Male connectors for the back of the instr Cluster? And how on earth did you figure out the wiring for the new connectors? I am not sure if the car is running the way it should because from my readings on VarioCam plus it does need the feedback from the new instrument cluster to change the the valve settings under 3K rpm to the new settings over 3k. I thought it was a function of RPM, Throttle position and oil pressure. And I also read that the A/C is disabled under full throttle which makes emprical for the new cluster to be present according to your statement that the Inst Clust controls the A/C. I have driven many post 02 996's and they are extremely smoother than my car. I have a new engine so I can't say that the power is more or less than those cars, However the Dyno figures were pretty mediocre in my opinion and the car runs hotter than it should be because the lo speed cooling fans never come on. If I get stuck in traffic more than 10 min, the car start overheating until the Hi speed fans finally kick in. The temp readings off the existing cluster are 8 degrees higher than what you see on the DME via PST2!!! Porsche computer. So the DME always thinks that the temp is 8 degrees cooler. By the way do you know ( or Loren?) the lo speed fans kickoff temperature? And the Hi speed temps as well? Are both left and right fans supposed to come on together? at lo and ho speed? They used to, before the idiot buchered my car. He is not worth mentionning on this highly reputable site. J.

My Dear Todd You are so correct... I removed the existing cluster (Thx to Loren's instructions it was a 10 min Job) and the cconnectors ARE DIFFERENT. When you swapped your cluster what did you do? How involved is this job? I like to know if possible. I am interested to know so I can make a decision on moving on. Would a turbo 01 with VC+ have similar clusters to 02-04 or pre 02? I am lucky that I bought an 02-04 silver faced 6 speed cluster at a good deal. Now that I have an updated DME would it make sense to buy the harness for the cluster? Thx Todd again.

Todd, When you get lemons, then make lemonade. In case you missed my original post: The 3.4 went to heaven. So I had to make a decision by either replacing the 3.4 w/ a 3.4 that has a history of problems or move on to a 3.6 with VC+. THe tuner swore up and down that he had made over 50 similar conversions and that I'll end up with a 320HP plus another 15 to 20 with software mods. He obviously lied. And he ran into problems and kept them hidden from me. But he failed to realize that my car was maintained by Porsche and was fully operational and documented before the engine started making metal on metal noises. The engine really never died As soon as I heard the noise I stopped the car and got it towed to Porsche Service who told me that I needed a new engine. So I figured for an Xtra 3K I can get a bigger, newer more advanced and powerful engine. I really wanted a GT3 engine but the price was not justified. I will never buy another Carrera again. Their engines are not truly made to be driven. Wet Sump, mass produced, etc. I will either get a GT3 or a Turbo. GT3 more likely. I ordered an instrument cluster 02 to 04. Do you think by just swapping the clusters, some magic is going to happen? or Do I have to run the CAN twisted Pair to it. I cannot trudt the tuner any more, I am not getting a straight answer out of him. Thanks Todd.

Todd, Can you possibly run the 3.6 w/out CAN? Or did this tuner have to wire CAN from the DME to the Variocam+ connectors on engine? IF he did! then Would Variocam+ (VC+) work? or Does the DME revert to another mode if it can't activate VC+? Have you dynoed your current 3.6? Just curious what you got for HP and FT/LB If I install a new cluster, is it enough to get VC+ running? (Assuming the tuner did put in CAN? The 00 cluster is running, but miserably (Porsche computer showed a different temp to Instrument Cluster then the one to DME.) So can I assume that the tuner only put CAN from DME to Engine but not to cluster? My last Question is: Is CAN twisted pair added in parallel to the harness or is it included in the 02+ harness? If it is, can I run a special CAN to the Instrument Cluster? Would a 01 turbo be the ideal car to use parts from because it was the first car with VC+ before Porsche switched over the C2 to CAN technology? P.S. If you noticed that I am asking you to speculate, it is because the tuner has been feeding me a lot of B%^ S&^^ and I can't get a consistent or straight answer out of him as to what he did to the car? I have been very patient with him to no avail...

Thx Todd. 1. What did you mean by "add the comfort circuit"? 2. How do you add DME Computer Aided Network bus circuits? Is this software? or Some kind of Hardware wiring/harness ? Tuner told me that I have no CAN bus in my 00. 3.What kind of wiring is required in addition? P.S. I think my ABS works, I heard it kick in a couple of times when I needed it. Do you have variocam plus working on your Boxster? I used to own one 98. Loved it but not its power. Yours must be a blast to drive with a 3.6...

Hi Todd, Thank you for jumping in. I am not sure what a PM is? But read the message I sent back to Loren about what I heard should be done. I just wanna make sure to talk to you guys first.

Thanks Loren for your quick response. I am in Conntecticut. US I guess we can communicate through this post from here on, it will make it more valuable to the ROW. Although the Tuner told mr that he had to swap DME's, and I got charged for that DME. I was not super >o that he did. So I took it to Porsche in Boston, MA and the Tech plugged in his computer, he said that his computer did say that I had a DME 7.8. I also talked to a German Tuner in Germany and he said something about the Instrument cluster needing to be replaced. As well as the HVAC Control unit. I also talked to TODD at LA Dismantlers (Owner) and he said that I needed to replace the Inst Cluster, The HVAC Dash Control Unit and The Gas Tank and Fuel Pump. But I wanted to hear your opinion.

I hired a reputable tuner to do the engine swap from 3.4 to 3.6 (dead 3.4). The tuner assured me that he had done many similar conversions before (to find out otherwise later on) and that he would be putting a newly remanufactured 3.6L 02+ Porsche engine in my 2000 C2 Cab with variocam plus (min 320 HP + Software upgrade to about 340HP). The original swap was supposed to take 2 weeks which turned into more like 2 months. When I got the car back, aside from the fact that the new engine seemed less powerful than the older smaller engine (Tuner dynoed the car after 1500 miles at 242HP at the wheel and told me these numbers are normal for a new 3.6L and should get better after 2000 miles-they did not), the following also happened: 1. No cruise control 2. Coolant light flashes after every cold start 3. No HVAC control. It is always on. Cannot shut it off. 4. Cooling fans lo speed stage do not work. Only the Hi speed fans come on when the engine is getting very hot (way right of 180). 5. The car has a hard time doing warm-starts (30min to an hour after turning off the a warmed up motor) 6. I swear that there is no VarioCam Plus 7. PSM Light constantly on (C2 Cabs had no PSM switch, PSM was constantly on) 8. Disabled Check engine light (Off all the time even with ignition on before start) 9. Stereo Does not work From one of Famous Loren's responses Loren mentioned that in order to do the conversion from 3.4 to 3.6, one has to replace other items (CPU, fuel pump, etc). The tuner did eventually admit on one occasion your suggestions, but only after I brought the car back to him 5 or 6 times. He originally said that there is nothing wrong with the engine, but then he hinted once that he under-estimated the job and that there are other parts that needed to be replaced on the car to get it to fully work. But he won't tell me what they are. I am at a point where I have to cut my losses with this tuner and take it somewhere else to complete the job. (And most likely deal with him later). Any recommendations? I believe he did upgrade the DME to 7.8 but I don't know how he got the engine to work without rewiring aroung the VarioCam Plus. P.S. I did pay an extra $3000 over Porsche's quote to replace the 3.4L at the dealership.

If it is very high pitch, this means that your unit is dirt or going bad.. Inspect it before it gets worse

I have those bumperettes. I just converted to a 02 look. They are in great condition. Along with supporting brackets if you need them. Let me know. ziiz@cox.net