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johnbuz
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« Reply #3 on: July 26, 2008, 02:26:29 pm » |
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Hi All
Well I had the car diagnosed by a Bosch agent and they found the following:
The fuel pressure would be fine below half throttle, but anything above half throttle the fuel pressure just kept rising until the car cut out to protect itself. Giving code P1882 (Fuel Rail Pressure Deviation)
By looking at the drive to the fuel pump pressure regulator valve you could see that the ecu was trying to turn the pressure down, infact the pressure regualtor was driven fully open, but the pressure kept rising.
Conclusion was a faulty fuel pump pressure regulator.
There is a very fine filter on the tip of the regulator which can get blocked and show these problems, I pulled mine out, and NO filter.
I ordered up a new regulator complete from Merlin Diesel, fitted it, and the fault is still exactly the same.
So is there a problem with the pump so that it doesn't respond to the control of the pressure regulator, or is it the fuel pressure sensor giving duff information?
These vehicles just love having time and money thrown at them.
A VERY Frustrated John
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Martin Tyas
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Espace, because it's worth it!
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« Reply #7 on: August 08, 2008, 07:32:50 am » |
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So I have sent that one back to be sorted, and hopefully that will be then end of my problems.
I had an injection system problem 18 months ago and spoke to a Bosch diesel specialist service centre at length. They told me that if the problem with the injector was mechanical.... such as the nozzle requiring attention then they could sort it but if it was electrical then it meant having a replacement injector because they were sealed for life. The price they quoted for a replacement was actually almost the same as from Renault and they didn't have the CLIP or equivalent to programme the new injector calibration into the ECU. Hope that you get it sorted soon John and start enjoying your Espace. You seem to have spent a desperate amount of time and money on it so far but hopefully it will reward you in the end. Martin
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1968 Cessna 182L Skylane 1991 BMW 520i SE Auto 2002 Grand Espace 2.2dCi "The Race" 2003 Astra 1.8i Cabriolet "Edition 100" 2011 Insignia SRi VX-Line Red 2011 Honda VT1300CX Fury
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johnbuz
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« Reply #8 on: August 31, 2008, 04:20:02 pm » |
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Hi All
Finally sorted - YIPPEE!
It was a faulty injector, managed to buy a brand spanking new one and the car is as good as new.
No fault codes after a long spirited drive, and NO cutting out.
So, after having all four injectors refurbished, a new pump regulator, a new pressure switch, and then finally replacing one of the refurbished injectors with a new one, after a further injector test revealed a leaky one at high load, all is well.
John
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jackmonster
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« Reply #10 on: October 23, 2009, 08:18:02 am » |
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good that the problem has already been fixed. @johnbuz, can you tell me where did you buy your injector? __________ regulating fuel pressure regulator
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Anders Dinsen
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« Reply #11 on: October 23, 2009, 11:21:01 am » |
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good that the problem has already been fixed. @johnbuz, can you tell me where did you buy your injector? __________ regulating fuel pressure regulatorWhy link to something irrelevant for the discussion? We like seeing new members on this forum and if you have anything you want to promote, feel free to do so in the 'marketplace', but to me what you're doing here is just "clever spamming". Feel free to PM! /Anders
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1982 Talbot Matra Murena 2.2 prep 142 2017 BMW i3 "Charged Professional" 94Ah
Used to own: 2001 Renault Matra Grand Espace "The Race" V6 24v 1997 Renault Matra Espace 2.0 8V 1987 Renault Matra Espace J11 2.2
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