Checking Fuel Pressure
1. Unscrew capped nut on distributor injection tube.
Note
4. If fuel pressure deviates from specifications, clamp return hose slowly with a clamp at rear next to the fuel level transmitter.
Be careful that sealing ball does not fall out when taking off the capped nut. Catch escaping fuel.
2. Connect pressure tester P 378 or VW 1318 and P 378 c.
if pressure is less than 4 bar, check fuel filter or, if applicable, replace fuel pump.
5. If engine cannot be operated, pull off relay XX and bridge terminals 30 and 87. Fuel pump should run.
3. Start engine and measure fuel pressure Specification: 2.3 to 2.7 bar at idle speed.
Specification: approx. 2.0 bar
Pull off vacuum hose on left pressure damper.
Specification: 2.3 to 2.7 bar
36 Checking Fuel Pressure
Printed in Germany
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