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 all
Simple 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
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline

Post #2
which ecu?

I would check the double relay.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 1st Apr 2015 at 18:47
pug_306

Seasoned Pro

Location: Great Hockham

Registered: 28 May 2013

Posts: 1,593

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 Rallye
1992 205 GTi6
205 Turbo 340bhp
Posted 1st Apr 2015 at 19:16
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.
Posted 1st Apr 2015 at 19:19
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline

Post #5
I'd be looking at the continuity from the injector plugs and coils back to the double relay then Smile

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 1st Apr 2015 at 19:33
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

Posted 15th Apr 2015 at 10:47
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 Thumbs up

Yanni

________________________________________

Major stock holder of group P.S.A.
I live to pay and support the French industry.
Posted 15th Apr 2015 at 11:41

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