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Unknown 'part' In Ecu Housing, What is it?| steelcityuk |
Posted: February 10, 2009 09:07 pm
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 Double Chevron  Group: Members Posts: 689 Member No.: 388 Joined: June 21, 2006  |
Hi,
Whilst removing the ECUs to add the diodes to the Hydractive ECU I noticed a taped up 'lump' shoved next to the ECU. On untaping it, it's a diode in a plastic housing that's plugged into the loom. The part of the loom it's plugged into only consists of these 2 wires which if you removed the diode housing would plug together. Does anyone know what it does? Only having owned diesel XMs before I've never seen this kind of thing. Thanks. Steve. -------------------- XM 2.1 SED - RP5876
Prius T Spirit - MB A170 CDi XM S2 2.0 TCT LPG Exclusive Hatch RP6654 C5 HDi110 Exclusive XM S2 2.5 VSX Estate XM S2 2.1 VSX Hatch Xantia HDi Exclusive 405 GTX TD |
 
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| techmanagain |
Posted: February 10, 2009 11:44 pm
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Double Chevron Group: Members Posts: 933 Member No.: 273 Joined: November 21, 2005 |
Sounds a bit like a diode repair kit incorrectly fited, but a photo would help.
-------------------- Xantia 2 litre HDi Saloon X reg 1999
.Peugeot 306 1.8 Petrol Automatic Hatchback. Now for sale. |
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| Ciaran |
Posted: February 11, 2009 12:03 am
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 Andre's Mate Group: Members Posts: 1434 Member No.: 222 Joined: August 12, 2005 |
Sounds exactly as techman described, the well known diode to fix the electrovalve issue which causes suspension hardness.
Ciarán -------------------- '95 XM 2.1TD VSX Hatch: RP 6429. Rare green ;-)
'90 XM 2.0 SEI Hatch: RP 4832 - 'Gandalf the grey' '95 Xantia 1.9TD SX Hatch: RP ????. Black - 'Darth Vader'. Will be MOT'd '95 Xantia 1.9TD SX Hatch: RP ????. Blue - Utterly fooked Location: Outskirts of Belfast in the sunny north of Ireland... |
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| steelcityuk |
Posted: February 11, 2009 12:29 am
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Double Chevron Group: Members Posts: 689 Member No.: 388 Joined: June 21, 2006 |
I'll try and get a photo tomorrow. I've never seen anything quite like it, it's a single diode in a plastic 'housing' (not a potting box) that plugs into part of the loom that hasn't been split off.
Steve. -------------------- XM 2.1 SED - RP5876
Prius T Spirit - MB A170 CDi XM S2 2.0 TCT LPG Exclusive Hatch RP6654 C5 HDi110 Exclusive XM S2 2.5 VSX Estate XM S2 2.1 VSX Hatch Xantia HDi Exclusive 405 GTX TD |
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| steelcityuk |
Posted: February 11, 2009 01:40 am
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Double Chevron Group: Members Posts: 689 Member No.: 388 Joined: June 21, 2006 |
After trawling through the Citroen manual it seems to be part and parcel of the engine/injector harness. It can be seen on page 1115 on the 'Noz' disc. I can only assume it provides a feed to the injection relay/ecu that could back feed if the diode wasn't there. I could disconnect it and ask Lexia what it thinks is going on.
Steve. -------------------- XM 2.1 SED - RP5876
Prius T Spirit - MB A170 CDi XM S2 2.0 TCT LPG Exclusive Hatch RP6654 C5 HDi110 Exclusive XM S2 2.5 VSX Estate XM S2 2.1 VSX Hatch Xantia HDi Exclusive 405 GTX TD |
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