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displaying posts 1 to 7 of 7
| Author | Subject: No power on 1st and 4th. |
 yanni
Regular  Location: Thessaloniki Registered: 02 Nov 2006 Posts: 309 Status: Offline |
Post #1
Hello allSimple question for the gurus!!! Engine runs on 2 cylinders only. Diagnose shows no spark on first and fourth cylinder and no power on the corresponding injectors!!! Any clues what to look for??? Many thanks. Yanni. ________________________________________ Major stock holder of group P.S.A.I live to pay and support the French industry. |
 Posted 1st Apr 2015 at 18:36
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #2
which ecu?I would check the double relay. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 1st Apr 2015 at 18:47
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pug_306
Seasoned Pro  Location: Great Hockham Registered: 28 May 2013 Posts: 1,592 Status: Offline |
Post #3
welshpug! wrote: which ecu? I would check the double relay. This. On the Phase 2 its the brown relay :-) ________________________________________ 1998 Supercharged White Rallye1992 205 GTi6 205 Turbo 340bhp |
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Posted 1st Apr 2015 at 19:16
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yanni
Regular Location: Thessaloniki Registered: 02 Nov 2006 Posts: 309 Status: Offline |
Post #4
Sorry i didn't clarify. Car is Xu10j4RS Citroen Xsara Mk2 three plug multiplex ECU!!! Just drives us crazy for no apparent reason.... Yanni. ________________________________________ Major stock holder of group P.S.A.I live to pay and support the French industry. |
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Posted 1st Apr 2015 at 19:19
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #5
I'd be looking at the continuity from the injector plugs and coils back to the double relay then  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 1st Apr 2015 at 19:33
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rich_w
Seasoned Pro  Location: Havant, Hampshire Registered: 29 Jul 2004 Posts: 5,412 Status: Offline |
Post #6
Check the following:- Injector / coil wiring continuity to ECU, and leaks to earth - Injector resistance - Coil packs - Failing that, it may be a failed ignition / injector driver in the ECU Cheers Rich ________________________________________ Contact Details:rich@lynxpowerengineering.co.uk 07732 822546 |
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Posted 15th Apr 2015 at 10:47
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yanni
Regular Location: Thessaloniki Registered: 02 Nov 2006 Posts: 309 Status: Offline |
Post #7
Update.It seems that it's was none of the above. In the MK2 Xsara Xu10j4rs engine ECU Citroen decided to change the software so the immobilizer is embedded in the ecu map and has a rolling code. Now the problem is that trying to unlock the immobilizer confuses the engine map thus the engine runs poor or not at all. Only solution is to clone the BSI module under the dash from another car and code it to the ecu with that map. After two weeks that was the solution and now two cars runs fine with the same software and codes. Job done. Thanks for the replies guys  Yanni ________________________________________ Major stock holder of group P.S.A.I live to pay and support the French industry. |
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Posted 15th Apr 2015 at 11:41
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