Checking injection quantity of injectors — VW

🧭 Before you start

Fits: platform code 6X1

• Renewed: defective injector

Don't miss

• Use one measuring beaker per injector.

🔧 Engine codes this applies to

📋 Procedure

1. ⚠ Fuel system is under pressure! Wear eye protection and protective clothing to avoid possible injury and skin contact. Before loosening hose connections, wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection. — Remove air filter .
2. Pull 4-pin connector off ignition transformer (arrow).
3. Pull 4-pin connector off coolant temperature sender G62 with coolant temperature gauge sender G2(arrow).
4. Remove fuel rail complete with all injectors from cylinder head (fuel hoses remain connected) .
5. Pull fuse SB 40 off fuse holder.

6. Connect lower contact of fuse socket SB 40 and battery positive with auxiliary cables from auxiliary measuring setV.A.G 1594C so that fuel pump runs.
7. Connect remote control for V.A.G 1348V.A.G 1348/3A with adapter cableV.A.G 1348/3-2 as follows.
8. Connect a contact of injector to be tested to engine earth using auxiliary cables from auxiliary measuring setV.A.G 1594C.
9. Connect second injector contact with auxiliary cable to remote control for V.A.G 1348V.A.G 1348/3A using adapter cableV.A.G 1348/3-2.
10. Connect crocodile clip to positive battery pole in engine compartment.
11. Pull fuel rail out of intake manifold.
12. Hold a small container under the injector to be checked and pull connectors off all other injectors.
13. Operate remote control for V.A.G 1348V.A.G 1348/3A for 30 seconds.
14. Repeat check on other injectors. [Note: Use one measuring beaker per injector.]
15. After all injectors have been actuated, place measuring beakers on a horizontal surface and compare the injected quantity.
16. Renew defective injector .

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