Citroen Xantia

1. Disconnect from spark plugs of VV of a wire (pull only for a terminal tip, and at all for a wire).
2. Attentively study internal state of a tip, checking it on existence of traces of development of the corrosion, usually being shown in the form of a poroshkoobrazny raid of white color. Pull a tip on a candle, checking density of landing of the plug on a shaft of the last. In case of need again disconnect a wire and accurately turn in the plug as appropriate.
3. Pure rags carefully wipe a wire on all its length, having removed from an isolation surface dirt and greasing traces. Attentively examine a wire surface, checking it on existence of cracks, прогаров and other damages of isolation. Try not to bend excessively a wire in order to avoid destruction passing in it a metal tokoprovodny vein.
4. Disconnect the second end of a wire from the ignition coil (again pull only for a tip, and at all for a wire). Check internal state of a tip and density of its landing on the coil plug. In the presence of near at hand ohmmeter check resistive resistance of a wire, having connected the device between the candle plug of a wire and a segment in the coil. In summary establish a wire into place, having tracked density of landing of tips.
5. Operating in a similar manner, check a condition of remained VV of wires.
6. In case of detection of defects establish the replaceable set of wires intended for use on cars of this brand (ask in shops of automobile accessories).