|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
|
LinkBack | Thread Tools | Display Modes |
#11
|
||||
|
||||
__________________
2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
Sponsored Links | |
|
#12
|
||||
|
||||
I was thinking about the ckp and considering the last sensor I replaced on this engine was the exhaust cam position sensor it is probably due and I think I'll order one along with a new pressure regulator.
Just did some testing and here's what happened. First key on the pressure only came up to maybe 44. Second time 46 etc. I turned the key off and on a few more times until I got to 50. Car still took 2-3x the normal crank to start but did start. Once started it ran ok. I didn't drive anywhere but I gunned the throttle even no load and the pressure dropped each stab of the throttle. Also As soon as pump not running the pressure immediately drops 3-4#. Testing on my car I maybe saw 1-2# drop key off and I did see a little dip in psi on WOT, but not nearly as much. The weird part was the hard start even after charging up to 50 psi but I couldn't see the gauge very well when I cranked. I'm leaving the gauge hooked up so I can see how it behaves after a day sitting and I'll video the start up to see what happens and can compare to mine but I'm confident the FPR has seen it's last days. Thanks for the suggestion above CKP I've been considering that as a possible culprit from when I had long crank no ignition early on in this recent hiccup. It's due I'm going to order one. I also think for $40 I'll get the filter as well but I'll cut the old one in half to see how it looks inside and based on that I'll get just FPR for my car. Both mine and wife's are about 183000 avg miles and both are running lean so maybe a little bit of restriction in the filter is making that difference. Any luck I can punt on the MAF a bit.
__________________
2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#13
|
||||
|
||||
Quote:
I can read pTp with a multimeter also duty cycle and Hz. I think I'll compare wife's and mine if I can figure out where to stick a back test lead presumably in the eBox at the DME. I had a fluke scope meter but it had a bad day in the rain and my plug in one is too much work. I do want an iPhone connected oscope but I can't find one for line voltage for working on houses and most can't even handle 20v to work on cars. Oscope fantastic way to test the likes of blower motor. Bad commutator bar shows up great years before you know it's bad.
__________________
2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#14
|
|||
|
|||
Quote:
__________________
E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey |
#15
|
||||
|
||||
Unreliable cold starts; very long crank
https://youtu.be/IyRaz1q9HEM
Video including slow motion of a handful of WOT. Pressure dips about 4# each jab of the throttle. Apologies for the blinking the overhead light is LED
__________________
2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#16
|
|||
|
|||
Quote:
as you turn the engine off. Both the pump check valve and the fuel pressure regulator need to hold in order to maintain pressure when the engine is shut down.
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|