Scheme of switching on the temporary turn-in of the cold start injector: 1 - cold start nozzle, 2 - to the ignition switch (conclusion "ST1"), 3 - to the fuel pump relay-switch (conclusion "STA"), 4 - thermal relay of the cold start injector, 5 - to the electronic control unit (conclusion "STJ")
Using an ohmmeter, measure the resistance between the corresponding terminals of the cold start injector thermal relay.
Modifications
conclusions | Resistance, Ohm | Coolant temperature |
STA-STJ | 25-45 | below 15°C |
65-85 | above 30°С | |
STA-"weight" | 25-85 | - |
Serial version
conclusions | Resistance, Ohm | Coolant temperature |
STA-STJ | 30-50 | below 10°С |
70-90 | above 25°С | |
STA-"weight" | 30-90 | - |
If the resistance value is outside the specified limits, replace the thermostat after checking the nozzle.