The Lucas 13CU 'hot wire' airmass system was fitted to North American and Swiss market 3.5 litre Range Rovers during the period 1987 - 1990. This system can be identified by the ECU which is a large pressed steel (painted black) rectangular box with top cover held in place by 4 'pop' rivets. We believe this system was only shipped to North American (LA?) and Swiss markets but please email if you know better! Part numbers PRC 6977/5053/others. Please click here to see photo of this ECU.

There is one common problem associated with this system - over rich or poor running following work in engine compartment, usually battery change. We now offer a repair and rebuild service for this ECU. Please click here for full address and repair quote form.

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