Antihero1981 8 Posted November 19, 2014 Report Share Posted November 19, 2014 HI vento obd2 supercharged Well after the month i am having with the vento she has thrown up another problem She is cranking quite good but just does not want to turn over and takes a min or 2 to get going , i dont smell any extra fuel and the battery is good. Could it be the crank sensor ? Fuel pressure regulator ? Fuel pump relay or the fuel pump? The oil light flashes when you cranking I dont seem to think its the fuel as she runs ok when running Anyone else had this issue thanksryan Link to post Share on other sites
Therusterman 59 Posted November 19, 2014 Report Share Posted November 19, 2014 Get the codes read first, otherwise your replacing parts blindly. It does however sound like it could be a crank sensor. Link to post Share on other sites
Big J 283 Posted November 19, 2014 Report Share Posted November 19, 2014 Unplug an injector, put test light to the plug and wind it over. Test light should pulse. Listen for fuel pump relay clicking when ignition is turned on and also for the pump priming under back seats. You can pul off the fuel supply pipe from the end of the rail and see if there's fuel there with ignition on, but be careful!! Use a beaker or pot to catch it and if the pump is working that line could be under pressure!!You can lift tank cover and supply your own 12v feed to the pump from the boot light for process of elimination. Granted if it's a sensor you will need codes scanned but there's a ruck of basic automotive principles that can be checked old skool if your handy with the tools. Let me know if you need any help, I've been down this road a few times. Link to post Share on other sites
Antihero1981 8 Posted November 19, 2014 Author Report Share Posted November 19, 2014 thanks guys , i had the codes read last week and it was clear. will check the fuel pump and relay (which number is it) for the price of a crank sensor i might just change it anyway Link to post Share on other sites
Big J 283 Posted November 19, 2014 Report Share Posted November 19, 2014 (edited) From memory I just can't remember and my cars at home under a cover or I'd have a look. Ill google it for you.The last one I did had a really random relay pattern, in such that it double clicked. Clicked to activate pump and instantly clicked again. From there the 12v bypass to pump top confirmed a duffer, and £60 later it purred like a kitten. That had been stood idle for nearly 2 years which in my experience is fatal for some components. I've seen it no end of times in work, pull a wagon from the nettles, spend a fortune on it for test, and 3 hours up the motorway the turbo spits itself. The office don't seen to realise that I simply haven't got the time or the manpower to be recovering things that should of stayed in the bloody nettles. Rant over, see how you get on. Think basics before the computerised bits, fuel and spark etc. Edited November 19, 2014 by Big J Therusterman 1 Link to post Share on other sites
Big J 283 Posted November 19, 2014 Report Share Posted November 19, 2014 Relay should look something like this but as for fuel pump fuse, you'll need to check the legend on the back of the fuse box cover Link to post Share on other sites
Antihero1981 8 Posted November 19, 2014 Author Report Share Posted November 19, 2014 awesome cheers bud , yeah will stick a power probe on pump this week and check that and check the feed to the relay hopefully get it sorted , this month been a pain with 2 cars mot and both playing up....once i dont that i got to get the mrs Seat Altea boot lock working again ! never ending Link to post Share on other sites
Big J 283 Posted November 19, 2014 Report Share Posted November 19, 2014 Tell me about it, got my VR wanting attention, a defender in the process of a mechanical rebuild which is trying it's best to put my up from 20 a day to 40 but I won't let it, and a golf 6R that's getting upset with me for using it to work and back daily! Power probes ideal for supplying bypass feeds as checking earths etc, saves a lot of hassle. Link to post Share on other sites
Antihero1981 8 Posted November 19, 2014 Author Report Share Posted November 19, 2014 yeah just bought one I wanna test out.....think she is sulking with me as I was looking at a caravelle lol Link to post Share on other sites
Big J 283 Posted November 19, 2014 Report Share Posted November 19, 2014 Well there ya go then, don't piss off a golf, they bite back! But if your thinking of getting rid, I'd be interested in the charger Link to post Share on other sites
Antihero1981 8 Posted November 20, 2014 Author Report Share Posted November 20, 2014 lol...its hard cause she has been no problems for 7 years even when charged and now in 1 month she wants non stop attention , lol thats what brings a smile to my face when i driver her , the whirring of the charger... D11PS and Bealieboy 2 Link to post Share on other sites
Bealieboy 1,625 Posted November 20, 2014 Report Share Posted November 20, 2014 lol...its hard cause she has been no problems for 7 years even when charged and now in 1 month she wants non stop attention , lol thats what brings a smile to my face when i driver her , the whirring of the charger...Id love a mad max soundtrack to bolt on mine after hearing d11ps car at gti fest! Sent from my iPhone using Tapatalk D11PS 1 Link to post Share on other sites
Antihero1981 8 Posted November 21, 2014 Author Report Share Posted November 21, 2014 well relay is clicking away , did a few checks today and now she is even worse lol.looks like she is getting fuel as it sprayed out the FPR when I put it in wrong.lol.... but now she does not want to idle.....I tried the throttle body reset which didn't do anything. think I am being daft cause I lifted up the rear seats and there was no fuel pump hatch....and I cant find any hatch in the boot either.... so I am thinking , coolant sensor? crank position sensor? or vac leak , I didn't hear any hissing noises Link to post Share on other sites
Big J 283 Posted November 21, 2014 Report Share Posted November 21, 2014 Hmmm looks like it could be a sensor, I haven't done much with obd2 but I know the earlier obd1 had an idle stabilisation valve on the throttle body.So you must be getting a spark if it's idling then? Coolant sensors can cause a rich running but usually only noticeable once warmed up. You wouldn't really notice a hiss with vacuum as such, but I would think you should hear something. I've got a feeling someone else on here has had an idling issue but I just can't remember the cause of it. Is it any worse with maf unplugged?I'd say maybe now you've checked the essentials a code scan would be my next step just to rule out and dodgy sensors, obviously I know it's difficult when you can't move it though. Link to post Share on other sites
Big J 283 Posted November 21, 2014 Report Share Posted November 21, 2014 Just to add, there's a round black cover on the boot floor of a golf with three Philips head self tappers holding it down, under there is the top of the fuel pump. Never been in a vento so someone else would have to confirm that Link to post Share on other sites
Antihero1981 8 Posted November 21, 2014 Author Report Share Posted November 21, 2014 Yeah I thought vento be same with entry under rear seat..taking maf off tomorrow..driving me mad dude D11PS 1 Link to post Share on other sites
Mk3highline 287 Posted November 24, 2014 Report Share Posted November 24, 2014 Have you done a compression test? Link to post Share on other sites
Big J 283 Posted November 24, 2014 Report Share Posted November 24, 2014 Poor compression is a possibility but personally I don't very much that it's to blame. On a diesel then yes, step one is compression check, but on these AAA engines, I would expect it to start and run albeit on 5 cylinders, and just miss on one. It would also be breathing heavily and stinking of fuel. Link to post Share on other sites
Mk3highline 287 Posted November 25, 2014 Report Share Posted November 25, 2014 I'm just thinking if there is a sticking tappet or something in the head? Link to post Share on other sites
MJ Vr6 79 Posted November 26, 2014 Report Share Posted November 26, 2014 Pull your plugs out mate and see condition.For it to fire if the plugs aint sparking adequatley then it surely wont.Thats the first thing to check before spunking moneys mate. Link to post Share on other sites
Antihero1981 8 Posted November 30, 2014 Author Report Share Posted November 30, 2014 yeah I think that's next on the list , just surprised at she was running spot on for ages and then 1 day went bad Link to post Share on other sites
Mk1 Vr6 james 103 Posted November 30, 2014 Report Share Posted November 30, 2014 Crank sensorSent from my iPhone using Tapatalk Link to post Share on other sites
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