Fuel 2.2 Diesel fuel issues - Civinfo
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Old 27th February 2019, 17:33 Thread Starter
 
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2.2 Diesel fuel issues

Hi all,
My wife owns a 59 plate Honda Civic Si 2.2 iCDTI which is having some issues.

Two weeks ago she was driving home from work and the car smoked and revved itself. She immediatley turned it off and after that we couldn't get it going again. Car cranks but isn't firing, no fluid loss (I don't understand the smoke (I wasn't there when she broke down)).

The code on the ECU is P1065 - low fuel pressure.

I've replaced the fuel filter, incase that was clogged but there was fuel in the lines either side of the filter. I've checked the high pressure pump in the engine bay and it's delivering fuel. I've got fuel delivered to each injector but the pressure isn't high enough (7MPa rather than 20-30MPa (according to internet)).


My wife's mum's partner's son (a mouthful, I know) reckons that it's a pump inside the fuel tank which may have burnt out but I can't find anything for this on the internet; I can find the parts on ebay, but my local supplier doesn't sell them.

Could someone please confirm if there's actually a pump on the tank? & if there is how do I access it. I had the carpet up last night but couldn't find any access point.

TIA
Rich
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Old 27th February 2019, 17:38
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Welcome to Rich

Sorry to hear that you are having issues, the fuel rail pressure relief valve is known to fail - check threads on that out.

Good luck and let us know how you get on.
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Old 27th February 2019, 17:39
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Old 27th February 2019, 18:00
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revving up by its self and smoke on some cars happens when the turbo fails
but often you cant switch off till its burnt all the oil
out of interest have you looked at oil level
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Old 27th February 2019, 18:27 Thread Starter
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Thanks for this information I’ll be sure to check it out!!!


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Welcome to [IMG class=inlineimg]https://www.civinfo.com/forum/images/smilies/civinfo.gif[/IMG] Rich

Sorry to hear that you are having issues, the fuel rail pressure relief valve is known to fail - check threads on that out.

Good luck and let us know how you get on.
Out of interest, is there a pump on the tank? (Just so I can put my mind at rest)
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Old 27th February 2019, 18:31 Thread Starter
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I thought that too. The oil level is spot on, and there’s no sign of oil up the back of the car, which is something which happened when I had a turbo blow on an old car of mine.

A blown turbo wouldn’t prevent the car from starting up. Error on the MFD is PGM-FI and error on the ecu is low fuel pressure.

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revving up by its self and smoke on some cars happens when the turbo fails
but often you cant switch off till its burnt all the oil
out of interest have you looked at oil level
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Old 27th February 2019, 18:57
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I think the key thing here is the inability to reach the 20MPa minimum on cranking (against a 30MPa target). As said, most likely the rail over-pressure valve, but possibly one or more injectors with excessive leak-back.

Bit worried about the revving though, which isn't typical of this problem!
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Old 27th February 2019, 19:01 Thread Starter
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Hi Jon,

Thanks for the response... only thing which concerns me with replacing the valve is that none of the symptoms were present before it broke down; are these known to fail quickly like this?
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Old 27th February 2019, 22:15
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Quote:
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Hi Jon,

Thanks for the response... only thing which concerns me with replacing the valve is that none of the symptoms were present before it broke down; are these known to fail quickly like this?
Not really, but no reason why it couldn't suddenly fail.

Why not check the valve for any output flow before replacing it (as described on page 1 of the thread linked above by @Farqui )?
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Old 28th February 2019, 09:12
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Check the valve first, easiest to do, and you might get some further insight into the issue
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Old 28th February 2019, 09:44 Thread Starter
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That's a good idea. I'll check it out on the weekend! Many thanks!
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Old Yesterday, 22:07 Thread Starter
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Hi guys. Just wanted to say thanks.

It was a seized injector which my local garage diagnosed and fixed.
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Old Today, 07:04
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Originally Posted by vivalarichy View Post
Hi guys. Just wanted to say thanks.

It was a seized injector which my local garage diagnosed and fixed.
Thanks for the update, glad it's fixed. Never heard of this happening on an i-CDTi before!
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