Peugeot 106 1996 (new shape) Roland Garros idle problem TU3 1360cc

Hi All,

I bought my wife the above car some time ago and it has been a fine motor
until recently.

I have noticed that occasionally on some approaches to traffic lights or
junctions, the car will come to a halt but idle quite roughly sounds as if
it may stall. Also when accelerating say second gear, the car seams to go a
little flat as if to misfire but without the sound effects.

I have bought a system fault detector and I am now looking for the connector
in the car. The booklet that came with the unit tells me it in the engine
fuse box or clipped to the base of the ECU, but I can not find it. I do have
the described 2 pin connector in the fuse/relay box but this is grey and not
green and does not work with the detector.

Any ideas anyone, things I should check manually on the car or even the
location of this systems diagnostics connector?

Peugeot have been very unhelpful and do not wish to tell me this
information.

Thanks in advance.