Chery Tiggo. Manual

12.

CHECK INJECTOR RESISTANCE

• Disconnect injector harness connectors (See Fuel Pressure Test in Section 04 - Fuel Delivery).

• Check the resistance of the injectors.

INJECTOR

NO.

INJECTOR

TERMINAL

RESISTANCE

(APPROXIMATELY)

⍀ (20°C)

1 & 2

Is the check result normal?

Yes

Go to the next step.

Replace injector.
Go to step 14.

13.

CHECK INJECTOR

WARNING!

Confirm that the engine is cooled down and there are no fire hazards near the vehicle.

• Remove fuel delivery rail with injectors (See Fuel Injector Rail Removal & Installation 1.6L & 1.8L & 2.0L in

Section 04 Fuel Delivery).

NOTE :
Be careful not to drop the fuel injectors when removing the fuel delivery rail.
• Keep fuel hose and all injectors connected to injector rail.

• Disconnect all ignition coil harness connectors.

• Prepare pans or saucers under each injector.

• Observe the fuel injectors and crank engine for about 3 seconds.

• Fuel should be sprayed evenly by each injector.

Is the check result normal?

Yes

Go to next step.

Clean any injector that sprays unevenly or replace any injector that does not spray fuel.

DIAGNOSIS & TESTING

14.

CHECK DTC

• With the X-431 scan tool, read ECM DTCs.

• See DTC ⬙Confirmation Procedure⬙.

Is DTC P0171 still present?

Yes

Replace the ECM.

NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-

lation in Section 03 Electronic Engine Controls).

The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.

DIAGNOSIS & TESTING

Chery Tiggo. Manual - part 104