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dubman

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Posts posted by dubman


  1. update on this. Took the car to Glenn's, and the FPR is working (2.5 bar w/vac, 3.0 w/out vac), ICV's good (although one of the piping's a bit constricted, will be changed), and TPS is working.

    However, manifold vacuum was slow to build on startup, and fuel pressure was raised to 3 bar for a moment. This in combination with my side-lain AFM, long intake piping, and rich fuel mixture, lead to difficult starting.

    Thanks again to Glenn @ Botany Motorworx for providing me with quality advice and diagnostics. chur chur


  2. hey Chris, no, because when the car started up both times without pumped fuel, I had a 1litre bottle to catch the fuel from the fuel filter, and the fuel rate was good. Also, it's been daily driven etc. between "no start's" so I thought relay would be o.k.

    Today, the car started again, with fuel hose pulled, and ran well after putting the hose back in again.

    I did pull the vacuum hose off the FPR the day before every time the car died to see if the diaphram leaked....I just remembered that today, so maybe that caused fueling issues? :unsure:


  3. New pump put in, and still no dice. It did run with no fuel pump so still looking at fuel pressure issues.

    Either something's causing a restriction on the system (blockage) or the fuel pressure regulator's dead. Fuel return rate pre-pump is very low, and pre-fuel rail is very good.


  4. SO.....chucked in my spare FPR, cleaned all terminals underneath intake manifold, and did some gasket/hose changes and the car still didn't start!

    After, I checked fuel flow pre-filter and re-connected my fuel filter, then gave it another shot. IT STARTED!

    By now, the sun had gone down and my cabin temperature has also gone down. When the car failed to start both times, it was at around 4.30pm, when the car had a full days sun exposure, and running on a near empty tank.

    The words "Fuel Check Valve" keeps popping up whenever I read about similar non-start situations. If it fails again, probably get it to Glenns for legit diagnosis.....but for now I'm thinking it's fuel pressure related and I don't have the proper tools to diagnosis it correctly.

    I don't want to aimlessly throw new parts at it, better to fix it right 1st time around :unsure:


  5. running BMW

    I might as well check the sensors at the connections etc and make sure everything's in good shape. When I pulled the intake manifold, someone used gasket glue with the paper gasket. I ended up scrapping for 20 mins to gently clean the old gasket off, and there was alot of crud surrounding the intake port. The old fuel rail hoses were also cracked (got lazy and didn't do them when engine was out of car).

    Its an intermittent issue, so i'll read more material etc. to see if anything comes up, and do some maintenance whilst at it. At least i know it won't run now, better than be let down unexpectedly.

    i also got a spare fuel pressure regulator, will chuck that in to see if it starts again (hopefully the spare's not f*cked haha)


  6. cheers for sharing the advice guys!

    Car didn't start again today, and no dice after following the procedure in the 1st post......regardless of the cause, I pulled apart the intake manifold to have better access to the crank sensor connectors, whilst changing intake manifold gaskets + fuel hoses just for maintenance sake. Will see how it goes.


  7. i bought one of these on a whim:

    http://www.supercheapauto.co.nz/online-store/products/180mm-Car-Polisher.aspx?pid=135285#Cross

    it beats hand pads for sure, but its tedious to use (excess vibration, and horrible speed control). It'll be good for a cut, but not the best for polishing or minor corrections.

    Here's a crappy pic of an attempt I did (L/H cut, R/H uncut)

    post-5113-0-64285000-1384735175.jpg

    i don't know if this is any better though (you get what you pay for)

    http://www.supercheapauto.co.nz/online-store/products/180mm-Multifunction-Polisher.aspx?pid=344537#Cross

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