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320d Low Rail Pressure

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Hi Forum

You probably have had this topic before but I hope someone can help.

I've owned my 320CD M Sport for 15 months now and I love it. But ever since the day I bought it I've had an annoying fault that I've tried to eradicate but so far failed.

Simply the car starts and drives fine but at about 2000 revs and 45 mph it stutters as though the fuel isn't getting through. As soon as I put my foot down there's no problem. I thought it could be just needing a full service so I did that. Then I thought it could be poor fuel and it was a bit better on V Power but not perfect. Tried BMW injector cleaner. Had the car Terracleaned. Took it to a specialist who said there were no codes but Low Rail Pressuse and no 3 injector was maybe boarder line. So with nothing else to go on I had no 3 injector replaced and.....problem still there!

So does anybody have any thoughts?

Thanks

BMWACT

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Fuel filter replaced at the service?

If so, my first thoughts wojld be fuel pump, but then it would surely struggle at foot down too?

If i were you, id pick up a copy of inpa and have a look at pressure readings etc, get a better idea of what's going on. Its about £20 off eBay

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Hi

Thanks for your reply.

Yes the fuel filter was changed at the last service. Apparently the old one was so bad it literally fell apart. I'll get an inpa and see if that gives any clues although I'm not that computer minded. Is it easy to use?

To give you a bit more information it's worst when you are berely touching the peddle or when I'm in traffic in third and again not hardly touching the peddle. It feels as though theres either a blockage or its struggling to get the fuel through.The other thought I had it that the peddle has a little play in it so when I take my foot off completely and then put it down again there's an audible click. Don't know if that would have anything to do with the problem?

Thanks again.

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See what it's like with the EGR unplugged.

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Disconnected EGR vacuum hose and put a golf tee in each end. Took it for a test drive and the car is transformed! No stutter and excellerates beautifly!

Then just when I thought it was solved I got home,switched the engine off and there was a loud weer after the engine stopped that went on for about 2 seconds.

Any ideas

Thanks

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The 320's have vacuum operated radiator flaps, these are activated once the engine is off and vacuum is lost, possibly this?

I'd get your EGR off and give it a good clean up unless you're planning on having it mapped out; sounds like it's completely gunked up.

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Thanks for the information. Would any harm come to the radiator flaps whilst I'm sorting the EGR? And would it be better to fit an EGR blanking kit?

Thanks again

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No harm whatsoever, you can completely remove the EGR system if you want, check out suf's DIY. If it's a euro 4 engine then you'll get an EML unless you get it mapped out.

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I would replace them anyway. I've got an e92 and did out of precaution anyway.

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I'll stick in my 2 pence here, when I first bought my 2004 320d I had a similar problem, with the car slightly hesitating when driving at around 2k rpm. Just like yours it could only be achieved on a steady throttle, if you let off or put your foot down it would go.

Mine turned out to be the swirl flaps sticking closed, once they were removed the problem went and the car felt much better. 2 of mine were jammed on a tilt, so we're just in the process of falling off.

Mines the Euro 4 engine like yours, so yours will have the same problem swirl flaps fitted. BMW only rectified it for the 2007-onwards engines in the E9x cars.

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Thanks for all the info.

Yesterday I had the swirl flaps removed and an EGR bypass unit fitted. The EGR was coaked in soot and grime. The car now drives so much better in all gears with no stumbling at low revs. So hopefully problem solved. The only downsides at the moment is a strange sound when you switch the engine off. The garage said there was still a vacuum that was being released but there was nothing to worry about. There is an eml light is on but I hopefully will remap the car in a month or so and get it taken out then.

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Для этого необходимо настроить силу прижима болтов. Выкручиваем сломанное изделие из двери балкона, вставляем квадрат в фурнитурный паз, прикручиваем болтами. Регулировка наклона происходит аналогично, но используется иной болт. Полагаться на квалификацию сторонних специалистов большой риск для имиджа фирмы и ее продукта. Возможные поломки. Повернуть декоративную заглушку в основании ручки в исходное положение, закрыв головки саморезов. ремонт пластиковой двери балкона цена Москва. Заключение. Диагноз был неутешительный, спасти страдалицу могла лишь разовая инъекция 1500 рублей. Наша компания оказывает услуги по ремонту пластиковых дверей в городе Москве и всей области. Это делается в целях предоставления комплексной гарантии на окна и обеспечения их надлежащего функционирования. Выкручиваем сломанное изделие из двери балкона, вставляем квадрат в фурнитурный паз, прикручиваем болтами. ремонт пластиковых дверей балкона Москва. Виды неисправностей дверей балкона. Для этого снимаем ручки и сердечник. Виды неисправностей дверей балкона. Со временем даже самый качественный уплотнитель изнашивается, поэтому он нуждается в замене. Цены на герметизацию и шумоизоляцию. Для его замены своими руками сначала демонтируется старый уплотнитель.

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