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Old 03-06-19, 07:50 PM   #1
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Default 807 2.2 hdi no Start and no ECU lamp

Hello. I have the following problem. I have an 807 with a mistake. The engine does not start and no ECU lamp lights up. I tried to read errors but I could not access the ECU. hope for help
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Old 04-06-19, 06:14 AM   #2
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Have you performed the beep test, close doors, try and start the car, switch off leave key in ignition and open drivers door. Do you hear a warning beep? If you do this confirms the key has been recognised and immobiliser de-activated so should start.
Get someone to turn on the ignition and you watch the fuel filter housing under the bonnet. Does it visibly swell? This confirms in tank pump is working.
Is the fuel good in the tank ie not petrol or contaminated diesel? Has the fuel filter been changed recently?
If still no go after carrying out these checks I think your next step would be to get a decent code reader plugged in, despite the absence of the eml lighting up, it will pick up issues such as low fuel pressure, cam/crank incoherence or poor signal from crank or cam sensors etc. Best.
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Old 04-06-19, 08:23 AM   #3
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Where is the position of the camshaft sensor on an 807 hdi 2.2. If this is defective, this may also have cause of missing ecu lamp. Thank you for your help
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Old 04-06-19, 08:46 AM   #4
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The engine light is not coming on because there is no power getting to the ecu OR there is a bad earth either of these will lead to no start AND no comms its nearly always wiring that causes issues on these.

Dont mess around with sensors or any other parts until you do get comms concentrate on getting the ecu working and its NOT the ecu thats the issue !

As above do the beep test and check the pump is pumping but wiring can also stop the pump also later 2.2 wont have a pump you dont say what age it is.
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Old 14-06-19, 05:00 AM   #5
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I think the problem found .. That car not only starts, but it is synonymous no high beam and I have measured all the fuses all are OK but the problem is that no electricity arrives down here, this whole series as marked on my picture


https://www.bilder-upload.eu/bild-bdcf57-1560488371.jpg.html
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Old 14-06-19, 07:14 AM   #6
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Check maxi-fuse No 1.
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Old 14-06-19, 07:42 AM   #7
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Maxi fuse is OK. All 12v
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Old 14-06-19, 09:01 AM   #8
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Check power at com unit on column
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Old 14-06-19, 09:37 AM   #9
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Do not quite understand where they mean
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Old 14-06-19, 09:43 AM   #10
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Comms unit is the box of tricks under the steering column that contains the indicator/wiper stalks. Remove the covers and check the connections to it.
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