Engine & Gearbox 0 fuel pressure

Discussion in '7th Generation (2003-2008) [Acura TSX]' started by guyayres, Saturday 27th Aug, 2016.

  1. guyayres Junior Member ☆ ☆ ☆ ☆ ☆

    England guy watford
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    Hi All.
    Looking for a step by step fault diagnosis. I have a reading of 0 on my fuel pressure. I have removed the pipe to the fuel rail and cranked the engine over, not so much as a drop. With a list of possible causes, where and possibly more important how, do I start first?

    Regards

    Guy
     
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  2. Ichiban Founder Staff Team

    England CJ Leeds
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    Check the fuel filter ideally you need to see live data from the ECU to make that assertion , also you should have at least 10 litres of fuel for the test.
     
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  3. Zebster Expert Advisor ★ ★ ★ ★ ★

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    Snapped timing chain?

    Oldham coupling on fuel pump drive undone?

    Fuel pump drive sheared?

    Fuel pump broken?

    What happened in the lead up to this problem?
     
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  4. Ichiban Founder Staff Team

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    Scrapage scheme American stylee. hee haw :hunter::hunter::hunter::hunter::hunter::hunter::hunter:
     
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  5. Beefy Expert Advisor ★ ★ ★ ★ ★

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    Step by step diagnosis. 1. Pick up the phone and dial your nearest Honda dealer. 2. have them diagnose it.

    A forum is not the place for a step by step diagnosis. You will get a lot of good and bad ideas about what it COULD or MIGHT be but not a diagnosis.
     
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  6. Ichiban Founder Staff Team

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    :SOS::hondababy:
     
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  7. Zebster Expert Advisor ★ ★ ★ ★ ★

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    Asking for a step-by-step diagnosis was perhaps a little ambitious, but it's quite reasonable to work out what's wrong with cars without taking them to a main dealer.

    I would also suggest a diesel specialist or a Bosch service agent as an alternative if the OP isn't DIY inclined, although it sounds as if he might be. The Bosch injection system is commonplace and well understood.

    Plenty of people have repaired their cars using advice gained from forums.
     
    Last edited: Sunday 28th Aug, 2016
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  8. blackbeard Club Member ★ ☆ ☆ ☆ ☆

    England England Kent
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    This is assuming that the high pressure fuel pump has no internal mechanical damage and rotates when attempting to start.

    Check fuel filter for air, bleed with bulb until it's rigid , nip bleed nut back up.

    Plug in ODB2 reader, take notes of ALL STORED OR PENDING codes, then clear them.

    Put everything you've disconnected back in place, and try to start again.

    If it still will not fire ,check for fault codes with reader again, if any show themselves again that were on the list from your original readings, that are fuel system / pressure related, that's where to start looking.

    A duff high pressure fuel pump solenoid will prevent the flow of diesel, and is an easy change if it's the fault.
     
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  9. Beefy Expert Advisor ★ ★ ★ ★ ★

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    @Zebster we are always at odd with each other when it comes to main dealers. no malice intended, we will have this difference in opinion of course. but no matter who is behind the keyboard they are not actually working on the car in question. All forums are capable of showing is the known issues and common problems, experiences members have once had. the DIY's are often brilliant and no doubt empowers people with a lot more knowledge that they would have had. which is great but will never diagnose a problem. if people relied on the advice of a forum they may, depending on the problem be able to fix there car at very little expense. or with a problem like no fuel pressure spend a lot of money and time chasing a problem for no good outcome. A good example would be peoples first posts always referring to fuel filters. the guy on this thread would most likely replace it and then still find the pump drive is loose and has wasted time and effort. my point being there are certain problems that need to be diagnosed properly from the off. Idealy Honda have the training and kit to do this successfully. yes at god forbid more cost. but as you rightfully say. there are independents out there or bosch specialists
     
    Last edited: Tuesday 30th Aug, 2016
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  10. Zebster Expert Advisor ★ ★ ★ ★ ★

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    @Beefy - so why not make a few practical suggestions that @guyayres could try... Surely you must have seen something like this on an I-CTDI before, probably enough times to have an idea about a likely cause? Even if not, what exactly would you (as a Honda technician) do first when confronted with such a problem in your dealer workshop? You can't get much HDS info from a non-runner, so you'd have to fall back on your experience and try something!

    The reason I suggest alternatives to Honda aren't personal or even because of the labour rates. It's because of the apparent Honda policy of not supplying the necessary Bosch spares at component level, meaning that problems relating to, say, the fuel rail or the fuel pump result in Honda replacing these entire (very expensive) assemblies, rather than the far cheaper individual components that are available from Bosch.

    The cost of having a new I-CTDI fuel pump fitted at a Honda dealer would be more than the value of a 2006 Honda Accord. A DIY solution for the problem seems to be the most logical course to follow. There are quite a few members with relevant experience of fuelling problems... @blackbeard has made a reasonable suggestion (I had to replace this solenoid a few years ago) which could be the problem.

    We really do need more feedback from @guyayres regarding how this problem first happened. Other symptoms (including stored trouble codes) would also be very useful. By now I would have wanted to rule out a snapped timing chain, maybe by seeing if the engine would fire up using 'Easy-start'.
     
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  11. Beefy Expert Advisor ★ ★ ★ ★ ★

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    I have to be careful what I suggest I am afraid. If I was to tell every man and his dog exactly what was wrong with there car. Or as you say suggest checking this first. I am taking work away from a Honda dealership. Or possibly giving the wrong advice. I know that without working on this car I cannot give any relate to advice. He has no HDS or equivalent and wouldn't understand the data anyway. Maybe it is the pump drive? But is it the injectors as well? Or the rail? Nobody knows over a computer and the best advice for this guy is to have someone competent to look at it. He can decide to try a Bosch specialist after your input and that is useful to him. But telling him what to check is erelavent if he doesn't understand why he is checking it. it is well known a cross the site who I work for. I can't afford to loose my job over advice I give over a forum. Technically I shouldn't even give any advice at all as far as work is concerned. My advice to take to a dealer is due to the fact that it is the most likely source of this person getting the car running. I am afraid not all Bosch centres are the bees knees. I give an example of a fuel pump we sent off for refurbishment. We knew it was faulty as a donor fired the vehicle up first time. It came back with the report no fault found. Put it back on and hey presto non runner.
     
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  12. Nighthawk Guest

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    The safety and security of your family @Beefy is far more important than anything else as far as I am concerned. I can completely understand your stance. Nothing comes above the safety of mine, be that physical, financial etc etc.
     
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  13. Zebster Expert Advisor ★ ★ ★ ★ ★

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    I do appreciate your position. But having a Honda tech advising that the car should only be repaired by a Honda dealer is alarmist and off-putting for DIYers who presumably make up the majority of the forum membership.

    I only suggest Bosch as I know they hold the spares necessary to repair fuel rails and fuel pumps. Obviously some agents will be below standard!
     
    Last edited: Wednesday 31st Aug, 2016
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  14. SpeedyGee Administrator Staff Team

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    @guyayres any progress or updates on this ?
     
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