EuroVan (2.5L)
- Disconnect main fuel injector wiring harness from fuel rail. Disconnect cold-start injector. See Fig 1
. Connect LED Tester (US 1115) to wiring harness connector using test leads from Adapter Kit (VW 1594).
- Disconnect Blue Engine Coolant Temperature (ECT) sensor. Crank engine and observe LED tester. LED tester must light up for 1-4 seconds. If LED tester does not light up, check cold-start injector voltage supply circuit using PIN VOLTAGE CHARTS
article or replace ECM as necessary.
- If LED tester lights up (voltage supply circuit okay), remove cold-start injector and reconnect cold-start injector to wiring harness. Place cold-start injector in container and crank engine.
- Cold-start injector must spray uniformly for 1-4 seconds. Wipe off cold-start injector nozzle and observe tip. No drips or dampness may occur within one minute. Replace cold-start injector if it does not operate as specified.
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