Thanks for the response. The car is a 3 year old 270s assembled by myself. Less than 5k on the clock. The sender connections seem good and the gauge connections seem ok. All other gauges are working fine and the car performs well.
What tyre pressure do Caterham recommend for the road use of a 270s fitted with Avon ZT7 185/60 R14 supplied as standard with the kit a couple of years ago?
Has anyone had a go at boxing in the engine bay up to and around the sump. I was thinking of using expanded aluminium. It is directional to reduce dirt ingress but maintain airflow.