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I'm experiencing misfire and hesitation in all gears at ~1.5bar. (Due to spark plug gap being out of spec) I pulled the DME and KLR to have a look as it felt like some sort of boost related issue and found fluid in the line to the KLR. That doesn't appear to be normal?
1. How should I drain it?
2. What caused this?
Thanks.
Last edited by 951North; 06-17-2019 at 07:36 AM.
Reason: edited title
Wow.. interesting! I guess clearing it would be easy--disconnect both ends and shoot a little air in there--but I'm curious what liquid it is (?) You pressure wash your engine recently?
Wow.. interesting! I guess clearing it would be easy--disconnect both ends and shoot a little air in there--but I'm curious what liquid it is (?) You pressure wash your engine recently?
What? How does gasoline get into that line? I understand with a failing FPR it can get into the FPR's vacuum line but then what, get sucked through the entire vac system and into the KLR line?
What? How does gasoline get into that line? I understand with a failing FPR it can get into the FPR's vacuum line but then what, get sucked through the entire vac system and into the KLR line?
Weird
From the Pelican boards...
Is it maybe fuel? I once had the fuel pressure regulator leak fuel back into the vacuum line that connects to it and some apparently wound up in the tube that goes to the KLR. I could tell it was fuel by the smell. It took me a while to find the source. I eventually wound up putting a piece of clear hose between the FPR vacuum fitting and the vacuum hose that normally connects to it and I could see intermittent leaking. Replacing the FPR has fixed the problem so I am concluding that that was the only source.
Might have had some oil mixed in from leaky valve seals or turbo but definitely gasoline in there...
As for cleaning it out just disconnect it from the KLR side. Remove the line from the IM banjo bolt, then blow a bit of compressed air thru the banjo side (have a rag on the other to catch the trapped gas.)
As for cleaning it out just disconnect it from the KLR side. Remove the line from the IM banjo bolt, then blow a bit of compressed air thru the banjo side (have a rag on the other to catch the trapped gas.)
Did you have any drivability issues? Symptoms?
I'm due for a new FPR as I hope to go to a Vitesse MAF soon, fuel damper too then?
I'm due for a new FPR as I hope to go to a Vitesse MAF soon, fuel damper too then?
I vaguely recall some driving hesitation but I think I was mostly having labored starts that got me looking around at the time. In my case I had a relatively new 3bar FPR so I was fairly confident that wasn't the problem source which led me to look deeper at the damper. Likely both the FPR and damper could cause this same issue.
Labored starts as in having troubles cranking over?
No, it would crank normally. But it would take entirely too long to actually start. I think I first noticed the fuel in the KLR line when I was proceeding to inspect the speed/ref sensors which was my first line of thinking on the starting issue at the time.
yes the problem is the fuel pressure regulator. there is a membrane or check valve thingy that failed and is allowing fuel to get poured into the KLR. For me, car would drive great for few mins until circuit board got wet then would hard to start and run poorly.
was hard to figure out cause the board would dry..
When I removed the vac line from the FPR there was a bit of gasoline there but I'm not convinced it was from the FPR (read on). There were no obvious cracks or tears in the diaphragm but it was hard as hell. I ran the car around town and let it sit to see if the problem was resolved. No dice. Gasoline in line again. As per DAVE951 I suspect the Fuel Dampener. So at the moment I have disconnected the vac line from the dampener (there was gasoline there also, and may have contributed to the gasoline in the FPR vac line) and have plugged the vac line and sealed the vac port on the dampener. There doesn't appear to any change in drive-ability. Also there was no gasoline in the KLR line. So it appears the Fuel Dampener and possibly the FPR were co culprits.
06-10-2019, 05:26 PM
Gasoline in KLR line?
