Caution: When working on the fuel injection system, it is necessary to maintain impeccable cleanliness. Before removing, the relevant parts must be cleaned with gasoline. The system is under high pressure. Therefore, before replacing parts, it is necessary to relieve the pressure by slowly releasing the fuel pipe on the cold start nozzle. In this case, it is necessary to place a rag at the connection point. Danger of fuel escaping under pressure! Wipe off leaking fuel with a rag.
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MOTRONIC injection device (BMW 3 Series E30)
The engine speed is measured directly by an inductive speed sensor located near the flywheel.
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