Reebuck1

Thanks JP. I'll leave an update when done. Could you see the pictures I tried to include? If so I will leave some more that should be of interest for the engine rebuild. Thx. Bob

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Rebuilt a 2001 Carrera 3.4. Cracked #2 cylinder sleeve Sent case off to L&M Eng. came back in great shape and they bumped it to a 3.8. Build went great...motor back in car...runs great...tuns of torque. BUT noticed I was leaking gas. Took awhile but found that the #3 injector appears to be leaking. Is there an easy way to get to it without dropping the engine? Or having to remove the intake manifold? Thought I'd ask the experts!!

Don't have it fixed yet. Still getting data and will post pictures and charts shortly. Thanks

Thanks guys for the response...I have to go out of town for a few days and will be back at it shortly. I'll report back with pictures. Again Thanks !!

Still am wondering why I get no fault codes when car is just idling but as soon as I blip the gas I get a check engine light and the above fault codes?

DME is 5.2.2 from the 2.5 Boxster Intake and throttle body is from the 996 Carrera Air filter box is from a 987 but converted to fit in the 986 3 1/2 inch silicon piping runs from air filter to throttle body MAF is stock from the 996 with the 3 inch 987 tub that holds the 996 MAF MAF is located approximately 6 inches from the throttle body opening. oxygen sensors are the stock 2.5 oxygen sensors

Ahsai/ Loren, Finally got the motor in the car and started it up today....major mile stone. I had my DME re-flashed with a ROW flash. Am running CAT by pass pipes with no muffler as of yet. Put the boxster 2.5 pre-CAT oxygen sensors on the by-pass pipes. No seats in car yet. Motor started right up...at idle ...NO FAULTS !!! blipped the throttle a few times and got the following FAULT CODES: P1319 P1318 P1317 P0300 P0306 P0305 P0304 P0150 I am only guessing......... I have a bad Oxygen sensor in bank 2 (4,5,6) Cleared faults...and again at idle, it caused no fault code. gave it some revs. and same codes as above showed up. Any thoughts? Pictures and writ-up to follow. Thanks, Bob

Make sure you listen to JFP on pressure and especially BROKEN PLASTIC IMPELLER PARTS. I learned the hard way ! It was not cheep!!

Does anyone know where I can buy the fitting that connects to the high pressure side of the fuel rail? I am doing a Boxster motor swap and I am trying to run a new high pressure fuel hose to the fuel rail on the 996 3.4 motor and I can not tell what size the larger high pressure connector is or what size threads the needed female connector has or needs? Thanks in advance.

Down to final steps of a 3.4 swap into my 1998 Boxster ( including a 6 speed trans). I have a number of questions I hope someone can help me with or answer for me. 1. I have enclosed a picture of my exhaust headers. Note the inside diameter of 58 mm. Also note my fabricated intake manifold (Blue silicone piping) 3 in. ID. My question is how far away from the throttle body should my MAF be placed?? I am using a BMW MAF holder (black tub)with a Porsche MAF. Should this BMW tub be as close to the throttle body as I can get it or much further away as it is in the stock Boxster close to the air box?? 2. I would like to fabricate a pipe to eliminate my CAT. If I do this can I eliminate my post CAT sensors?? 3. The stock DME is Motronic 5.2.2 and is the same DME model that was in the 996 the motor came from. Will I still have to flash the DME before the car will run?? I know if I drop the post CAT it will need a special chip what if I do not drop the post CAT ?? 4. I would like to post a mistake list detailing some of the mistakes I had made on this journey if there is any interest out there...is there??

Great thanks !!!!

Rich , I found it thanks to Ashai! The Bosch numbers on the white internal section for the 88 pin DME plug are 1 928 401 587 and 1 928 403 122. That part has two numbers on it. This plug has two different size spade connectors. The small spade connector is Bosch number 1 284 477 219(JPT AMP substitute 927 774-3). The large connector is part number 1 284 477 121(JPT AMP sub. 927 775-3). Thank you for your help, it was very much appreciated. I was unable to get a pin out without destroying it. Thanks, Bob

Thanks Ahsai great detective work !! It is much appreciated !! Bob

This shows the DME 81 pin connector. Notice that the connector do not match the VW connector you spoke of. I have used the VW connectors on my cruze control install but it is not the same as the DME spades. Still looking anyone have any ideas???

I am in the middle of a 3.4 996 motor swap into my 98 Boxster and I have to add a wire to the #59 slot in the 88 pin DME plug. Does anyone know where I can find the female spade that goes into the DME plug? and also where I can get the insertion tool?

I am looking at the Porsche 996 Workshop Manual under "Changing AFT' and see a note that says "Without ATF, the engine must not be started and the vehicle must be towed." Under item #5 on the same page it says "Move selector lever to position "P" and allow engine to idle" Item #6 "With engine running, top up ATF again until excess ATF emerges from the bore of the ATF filler screw(2)." My question is should the motor be running when you are trying to top off the ATF level? I am confused by the manuals instructions. Can someone out there with more experience than mine offer the correct advice?

No, the AC was not on. I just went down and turned on the AC and the RPMs dropped !! Thanks again.

Finally back with data I promised.........below you will find my original Durametric readings and readings I took yesterday. Car is now running great and have had no further motor problems. I also managed to re-time the cams with the factory tools and you can see the difference in the below lines titled "Camshaft Position deviation". Hope this helps someone. AGAIN THANK YOU ALL FOR YOUR WONDERFUL HELP>>>>>NEVER WOULD HAVE GOT IT ALL WORKING WITHOUT YOU !!!! I am also providing all the read outs from my "Engine Module ME5.2.2 at idle after my around block run: Durametric version 6.3.2.5 1st run in 2nd run May 31, 2014 would not idle idles smoothly RPM .....................................................720 920 Load Signal ........................................... 1.30 1.45 Air mass ...............................................14.25 to 16.25 jumping 24.00 Speed .................................................. 0 0 Voltage ............................................... 13.45 13.30 IATS .....................................................69.8 50.3 ECTS ...................................................72.8 104.3 Throttle plate angle ................................. 0 0 Ignition timing .......................................3.8 to 9.8 jumping 3.8 Spec. air mass ......................................16 to 17 4 Spec. air adaptation .............................. -3 -10 Ambient pressure ...................................760 960 Injection time .........................................3.9 to 4.0 2.9 Exhaust temp. after cat. Converter ..........52C 52C Oil temperature ......................................72.8C 97.5 Engine compartment temp. .....................54.8C 59.3 Oxygen sensing cylinder 1-3 .................1.25 .98 Oxygen sensing cylinder 4-6 ..................1.25 .99 Ranger 2 Cylinder 1-3 (FRA) ..................0.98 1.00 Ranger 2 Cylinder 4-6 (FRA2) .................0.98 1.00 Ranger 2 Cylinder 1-3 (TRA) ...................0.37 rich 0.10 Ranger 2 Cylinder 4-6 (TRA2) .................0.37 rich 0.10 O2 sensor voltage ahead of cat. conv. ...... 0.00 0.27 O2 sensor voltage ahead of cat. c. bank 2....0.00 0.51 Camshaft position 1 deviation .......................-2.0 0.00 Camshaft position 2 deviation (USA model only).....3.0 3.00 HO2S heat. Res. Ahead of cat. conv........................3.1 3.1 Rough-running threshold .........................................8.5 8.9 Rough running.........................................................0 to 4.0 most of the time 0 to 2.8 0.4 Segment A ..............................................................1 1 Segment B...............................................................1 1 Leam. progress sens. Wheel adapt.........................0.0007 0.0007

Guys I will be happy to do the above. Let me run it for a week or so and I will get back to you with a before and after chart on all my Durametric readings. Be back in a week !! Thanks again for everyone help !!!! .................Ahsia was great to hang in there with me during the ordeal!!!!

Took car for long drive and by time I got back home all appears to be working correctly!!! I just want to thank everyone for their help..................Never could have fixed it without your assistance. Ahsai....I owe you big time....Thanks

Guys, Still working will not be able to get back to car until Monday....FYI thanks again !!

Ahsia, Thanks again. Have to take two days off to try and pay the bills. I will get back to this in two days. I was only able to drive it for about 10 minutes....probably not long enough. I'll take the longer drive in two days. Again thank you...I'll owe you a couple cases of beer at the end of all this.

Ok, got one fault code.............P1531....Camshaft adjustment bank1 could have been caused when I tried to see if the Vario cam was working correctly. I used "activations" in my Durametric Engine Module program by starting and stopping "Camshaft adjustment bank 1".....which caused a significant change in idle when I made the adjustment and corrected itself when I went back to where it had been. No other codes !! FRA.............1.18 FRA2...........1.18 TRA............0.03 TRA2..........0.03 Voltage on pre cat. sensors were like yesterday started at 0.44v dropped off and fluctuated between 0.13v and 0.01v depending on RPM

Will do !!