Fuel Starvation? 20XE Problems inside *New Video* - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

9th Oct 12 at 22:38

100% sure it's fuel starvation as there was barely any pressure at the valve on the rail.

http://s267.photobucket.com/albums/ii301/daz1492/?action=view&current=IMG_1049.mp4

That's a video of the fuel being pumped in to a can. Does the flow look about right?

Also changed the FPR and if anything it has made it worse.

Really need some help on this guys if any of you have any ideas?

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Mark.W

Member

Registered: 3rd Jan 07
Location: County Durham
User status: Offline

9th Oct 12 at 23:44

Really wish i could help Darryl but this has got me really puzzled

Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

10th Oct 12 at 06:12

you and me both!

Had my step dad, my dad (who's a mechanic) and a mate looking over it last night and every one said it was doing their head in.

Injectors might be the next port of call. My mate said to check the lines for any kinks which ill be doing today to make sure.

Ill probably change the FPR back as the old one seemed like it worked better.

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Mark.W

Member

Registered: 3rd Jan 07
Location: County Durham
User status: Offline

10th Oct 12 at 09:05

Could there be a blockage in the fuel rail?Maybe worth trying another fuel rail.

Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

10th Oct 12 at 12:22

Taken it apart and it looks fine in there

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Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

10th Oct 12 at 14:38

FPR was a 3.0bar that we just put on instead of the 2.5 it needed

alm: need to source another now!

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Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

12th Oct 12 at 16:15

Fuel Rail
Injector
and the RIGHT FPR changed with no change.

Crank sensor I changed as well just to rule it out.

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tobyc20xe

Member

Registered: 28th Jun 12
Location: bradford
User status: Offline

12th Oct 12 at 16:27

change the fuel fillter for a new mate? the inside of mine fell to bits last week makeing mine run like shit. dose no EML flash up?

Jamie-C

Member

Registered: 3rd Jun 08
Location: Ballycastle
User status: Offline

12th Oct 12 at 17:33

Got a good fuel rail with injectors and FPR here Daz if you want to try it?

Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

12th Oct 12 at 19:53

quote:
Originally posted by tobyc20xe
change the fuel fillter for a new mate? the inside of mine fell to bits last week makeing mine run like shit. dose no EML flash up?

Done it for a new one last week and no EML, Only codes stored are the ones from the hall effect sensor which was changed a while back now when the problem first started

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Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

12th Oct 12 at 19:53

u2u'd you back Jamie

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VegasPhil

Premium Member

Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
User status: Offline

13th Oct 12 at 15:40

Have you inspected the ECU yet?

Corsa 2.0 16v Vegas - Sold

Linch

Member

Registered: 4th May 06
Location: Whickham, Tyne and Wear
User status: Offline

13th Oct 12 at 16:25

quote:
Originally posted by Darryl H

quote:
Originally posted by tobyc20xe
change the fuel fillter for a new mate? the inside of mine fell to bits last week makeing mine run like shit. dose no EML flash up?

Done it for a new one last week and no EML, Only codes stored are the ones from the hall effect sensor which was changed a while back now when the problem first started

I was going to suggest hall sensor/camshaft sensor.

Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

13th Oct 12 at 16:39

Inspected the ECU and all seems fine, Hall effect sensor has been changed and not had EML since but just the problem, Jamie is hopefully sorting me out with an ECU to try and also going to check the lines properly tomorrow

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chris_uk

Premium Member

Registered: 8th Jul 03
User status: Offline

14th Oct 12 at 08:55

After seeing the first vid im going to say lambda sensor.

My gf's car is doing the same thing and i know the lambda sensor has gone (she has 3)

Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

14th Oct 12 at 13:20

It doesn't have a lambda sensor

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Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

14th Oct 12 at 20:05

Holds its 2.5bar of fuel pressure so I'm going to say it's an ECU/electrical fault now causing it to seem like fuel starvation.

Does that sound about right?

[Edited on 14-10-2012 by Darryl H]

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davegreen

Premium Member

Registered: 20th May 12
Location: Oxfordshire
User status: Offline

14th Oct 12 at 20:39

may sound abit dumb but you have fitted the throtle pot correctly? so the signal from it to ecu goes from 0 up not say from 9 to 10 then 0 1 2 3 etc as some pots are adjustable. numbers are just an example, the reading should either increase or decrease in sequence as the throtle is opened. i have seen this fault before on position pots in differant vehicals.

Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

14th Oct 12 at 20:53

I'm not sure I know what you mean Dave.

The numbers you are on about, is that supposed to be voltage?

Do you mean as in the casing is in the wrong position or the shaft that goes through it is like a turn out?

It's clicking back into place if that's any help?

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davegreen

Premium Member

Registered: 20th May 12
Location: Oxfordshire
User status: Offline

14th Oct 12 at 21:03

you should have 3 wires to it, 1 signal in 1 comon 1 signal out. if you messure the resistance in ohms it should only go up or down as you open the throtle not start high go low then high again. some pots are on sloted holes ive not seen one on a 20xe so can say if this is the case. the xev is adjustable so are the jenvey ones a very tiny movement can make a huge differance.

Darryl H

Organiser: South Central
Premium Member

Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline

14th Oct 12 at 21:05

Oh right I see, I'll give that a look tomorrow, I understand what you mean now

Mine's on slotted holes

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Tony M84

Member

Registered: 26th Jul 11
Location: Leicester
User status: Offline

15th Oct 12 at 11:57

You say you still got codes for hall sensor problems even though you have now changed it. Have you reset your ECU?

Darryl H