306 1.8 16v 1999V Irratic Idle / Ignition Coil

robbie1980 · Post by **robbie1980** » 08 Jun 2009, 13:32

Hi,

I have fluctating idle and the car seems a bit jerky at low speed. No apparent loss of power or fuel economy.

I've read on lots of forums about Sagem coil packs (which mine is) giving larger than expected voltages which can damage the ECU.

Corrective action is replace Ignition coils and ECU. Everyone recommends changing to Bougicord coils, but i cannot find a replacement anywhere! Their UK distribution seems to have dried up.

Can anyone recommend an alternative manufacturer of coils which don't have the problems with the Sagem units do. GSF and Eurocarparts stock Valeo. Any good? Also, if anyone could suggest places to buy them i would appreciate it.

Also, if the ECU has been damaged by damaged coil pack, why is this only apparent at idle?

Finally, has anyone had any experience of refurbing ECU's or buying new and can recommend and companies which have solving this issue.

Hope someone can help,
Many Thanks
Rob

wheeler · Post by **wheeler** » 08 Jun 2009, 17:37

Try this lot > http://www.bba-reman.com/content.aspx?c ... d_citroens

robbie1980 · Post by **robbie1980** » 08 Jun 2009, 17:41

any advice to the coils?

Have you used this ECU company?

robbie1980 · Post by **robbie1980** » 16 Oct 2009, 12:53

I am sure that is it the power steering pressure sensor which is faulty.

http://www.eaucc.talktalk.net/EAUCCNEW2 ... 014.00.jpg

Unplugging and plugging causes/stops the problem.

Power steering pump is belt driven and takes load. Sensor detects when more load is taken and engine increases idle to compensate.

Fluid levels OK and no bad noises so assume faulty sensors.

Drives like it use to now! Hopefully solved.

Rob