Hey guys,
Small update from yesterday.
1- Got the DME back into my car;
2- Replaced the silver coil with my previous black one;
3- Looked over some of the vacuum lines and found 2 (pictures bellow) from the oil fill neck that definitely look worn although not sure if they are leaking. I sprayed throttle body cleaner over them and around the intake runners and other rubber joints with no impact on the idle;
4- I looked over the vacuum hose going to the brake booster and it looked fine... Although I tested it with the outlined procedure on one of the threads linked in this discussion : pump the pedal-hold it firmly-start the car and the pedal should soften up and fall slightly to the floor. This did not happen. When I hold the pedal and start the car... nothing really happened - the pedal remains as high and as firm. When I try this with my Audi A6 the pedal falls and softens SIGNIFICANTLY;
5- I played with the injector harness and nothing happened. Played with the plugs to the injectors and the engine did not stumble;
6- I tried capturing the hesitation on video and got it. It might be hard for you guys to tell, but when the hesitation occurs I get surprised and let off the gas. To be honest it's kind of scary to provoke the hesitation... I prefer not doing it. I provoked the hesitation at WOT or close to it. As you will see it happens over 5,000 RPM.
I hope these videos work... the hesitation in this video happens at 5,600 RPM (3rd gear) and I let off the gas right away:
http://vid1029.photobucket.com/albums/y352/mark_farrell/porsche%201.mp4
Here is another video of the hesitation - again around 5,600RPM in 2nd gear:
http://vid1029.photobucket.com/albums/y352/mark_farrell/porsche%202.mp4
In this video it happens around 5,800RPM in 2nd gear again:
http://vid1029.photobucket.com/albums/y352/mark_farrell/porsche%203.mp4
7- Once warmed up, I popped the hood and started playing with the oil cap. I was actually wrong, there is a change in the idle when the cap is removed as you will notice in the video. The idle with the cap on is very stable at 1,000RPM, when the cap is removed it drops a few hundred rpm. Let me know if this change in idle is what is normal or should it be rougher?
http://vid1029.photobucket.com/albums/y352/mark_farrell/porsche%207.mp4
Here is a video in the engine bay of the idle while I play with the oil cap. As I put it on and off there is a difference. Might not be as significant as it should?
http://vid1029.photobucket.com/albums/y352/mark_farrell/porsche%206.mp4
I am having trouble with the 2 last videos? I only get sound. Let me know if it works for you guys.
Next step this week is to remove the airbox, test AFM, remove intake elbow and clean/inspect TB. Let me know what you guys think? Should I start looking at buying a Wideband? How difficult is the installation???
PS: I only hear sound and not picture from the last 2 links although it all works fine when I try the links from my phone. Let me know if they don't work.
Thanks,
Mark