Hi You maybe drawing to much air in,check hose to air filter,it may have a hole in it or not fitted right
To wire an ignition barrel in the Citroen Saxo, begin by disconnecting the wire at the negative terminal of the battery. A lead wire has to go to the ACC terminal on the ignition barrel. The starter relay wire goes to the ST terminal and the ignition wire is connected to the IGN terminal.
You can reset the immobilizer on a Citroen C4 in one easy step. Simply insert the key into the ignition and turn it very slowly.
120.000km
To reset the service indicator Citroen C3, push the button on the instrument panel. Hold it for 10 seconds while turning on the ignition.
You have an immobilizer problem. Try another key.
Turn on the ignition with the key. Whilst on press one of the buttons on the key.
120000km/75000m
try 3523, it worked on my radio.
Every 250 000 km
Press in and hold the trip reset button. Switch on the ignition keeping the button pressed.
Service Light Reset - Citroen Xsara (1997 on) Using button located at the right hand side of the speedometer dial. Switch the ignition off. Press and hold button. Switch on the ignition. Keep the button depressed Service Interval and "spanner" symbol will illuminate for five seconds.
press and hold right button (3) Turn ignition ON 10second countdown Release button at end of 10secs Turn Ignition OFF