freelanderman
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Male
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Location
wigan
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Model
skoda roomster 1.4tdi
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OBD Diagnostics on a Renault Clio (04)
freelanderman replied to 2SkodaFamily's topic in Diagnostics & VCDS
I use vcds on a number of non vag cars and find as good at engine diagnostics as many more expensive code readers, gives lots of info -
Fabia vRS turns over but won't start
freelanderman replied to timothyjbeal's topic in Skoda Fabia Mk I (1999-2007)
I would definitely check timing belt first, cam sensor easy enough to change. -
Fabia vRS turns over but won't start
freelanderman replied to timothyjbeal's topic in Skoda Fabia Mk I (1999-2007)
If you cant hear fuel pump check fuses, to check if pump runs pull hose from filter and stick in a bottle turn on key switch and check for flow. -
Fabia vRS turns over but won't start
freelanderman replied to timothyjbeal's topic in Skoda Fabia Mk I (1999-2007)
Is the fuel pump in the tank running, you can hear it run for about 2 seconds when you turn the key switch on. If it does run switch it on 5 or six times to bleed the fuel system. Check for any diagnostic codes if you have a scanner. -
Fabia vRS turns over but won't start
freelanderman replied to timothyjbeal's topic in Skoda Fabia Mk I (1999-2007)
Petrol or Diesel -
You need to read the fault code with vcds, vcds lite is a free download and a cable can be bought for about £20 from somewhere like Gendan.
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Only a scope would be able to tell you if number one inj.fuel solenoid was operating correctly allowing the inj.to fire instead of returning the fuel to tank.
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You could check the injecter wiring harness, If it where mine I would use a oscilloscope to test injector solenoids, crank and cam sensor readings, also use a impulse sensor with the scope to check intake and exhaust readings.
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I find that strange, not aware that pd engine has misfire detection, what's the code number
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Injectors are adjustable, but they require a dti to set up, I would give it time to settlle down first and check all other sensors for correct readings first.
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What other codes are you getting, does the engine start with easy start, is the fuel contaminated with water, are compression reading up to spec. Is the crank sensor working.
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Google vw maf sensor wirring, plenty of information
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If your satisfied that tank pump is ok then tandem pump is faulty
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Even crank pressure should be much higher than the reading you are getting, is the in tank pump delivery up to spec.
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Tandem pump should be 3-5 bar at idling, tank pump about 15 psi and a delivery of about one litre a minute.