Electrical warning

It's always done it,(flicks on ,under load ) but since messing about fitting the induction pipe the warning/service light stays on for longer, but still goes off.The only area disturbed was the group of connectors/sensors near the blower unit and one of these has a Renix marking.The manual refers to a fault in the injection system but gives no details.It has never caused any problems ,but I would like to know if it might

On the ignition unit, the three way connector does 12v supply and earth, and output to the tach, and the other two way connector is trigger + & - for the spark pulse. The other connector is for the map sensor.

When I send you the new pipe, ill send the diagnostic unit too so you can check previous logged fault codes, and send it back with the old pipe

Mine sometimes flickers on, but that's because I've got a dodgy brocken wire going to the throttle idle potentiometer!