Wez Posted April 4, 2009 Share Posted April 4, 2009 Unsubscribed Link to comment Share on other sites More sharing options...
Kev.O Posted April 4, 2009 Share Posted April 4, 2009 Unsubscribed Link to comment Share on other sites More sharing options...
SimonB Posted April 4, 2009 Share Posted April 4, 2009 Definitely something wrong there. Its very noisy so hardly easy to miss. When you turn the ignition on the pump will prime for when you fire it up. Not true actually. Ignition on doesn't run the pump, it only runs while cranking. It also runs briefly on key off IIRC to prime the pumps for the next time you start it. Link to comment Share on other sites More sharing options...
Ric Posted April 4, 2009 Share Posted April 4, 2009 lol. Link to comment Share on other sites More sharing options...
Scott Posted April 4, 2009 Share Posted April 4, 2009 Not true actually. Ignition on doesn't run the pump, it only runs while cranking. It also runs briefly on key off IIRC to prime the pumps for the next time you start it. Eh? When i turn my key to ignition on (lights up all the lights on the dash) my pump primes. I can make a video once i have the car back. Link to comment Share on other sites More sharing options...
SimonB Posted April 4, 2009 Share Posted April 4, 2009 Eh? When i turn my key to ignition on (lights up all the lights on the dash) my pump primes. I can make a video once i have the car back. It may prime the pump for a couple of secs if you haven't started it for a while, can't remember now. But it certainly shouldn't run the pump continuously, that's why you have to bridge the FP and +B pins in the diagnostic plug if you want to check fuel pressure etc. And if you have just shut it off it shouldn't prime with ignition on either IIRC. Link to comment Share on other sites More sharing options...
wilkorangerover Posted April 4, 2009 Author Share Posted April 4, 2009 the fuel pumps good, (just done a few tests) Tdi north say the F-con will be ok (it either works or dosent) Link to comment Share on other sites More sharing options...
foodfreak Posted April 4, 2009 Share Posted April 4, 2009 do you have an hks knock link wired into your F-con, because if you do, the F-con takes it's af/r reading through the O2 sensor for the knock link. If I remember correctly the O2 sensor for the knock link is much more sensative & reacts faster than a standard O2 sensor. Also, the knock link sensor is very expensive. John Link to comment Share on other sites More sharing options...
Scott Posted April 4, 2009 Share Posted April 4, 2009 It may prime the pump for a couple of secs if you haven't started it for a while, can't remember now. But it certainly shouldn't run the pump continuously, that's why you have to bridge the FP and +B pins in the diagnostic plug if you want to check fuel pressure etc. And if you have just shut it off it shouldn't prime with ignition on either IIRC. Ahh right, yeah i wasn't clear enough. It doesn't run constantly, it only runs for a few seconds. I'm not sure how long i left between turning the ignition on and off but it was probably only 30 seconds or so. The pump would prime each time i did it (i was testing something). Link to comment Share on other sites More sharing options...
wilkorangerover Posted April 4, 2009 Author Share Posted April 4, 2009 there is also a jap immobiliser [sAD][/sAD] on the car, another mobile man is coming tomorrow to help Link to comment Share on other sites More sharing options...
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