The following describes the inspection of injectors using proprietary special tools and equipment. Beaker and auxiliary measuring instruments, wire, clamps «crocodile» and so on. can be replaced by other suitable means, but the test tool VAG 1598/31 must be available. The fuel pressure during the test should be normal. If necessary, check the fuel regulator and residual pressure. Remove the fuel distributor from the inlet gas pipeline along with the nozzles built into it. Do not disconnect fuel hoses.
Connect the VAG 1598/31 tester to the wiring harness that goes to the engine control unit. The control device is not connected.
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