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Chery T11 Service Manual Electric Injection System 85
14) Bad acceleration performance and force shortage when acceleration
Confirm whether the fuel meets the standard requirements and whether the manual brake and brake drag. No. Operation Step Detection Result Subsequent Step 1 Examine and confirm whether there are clutch slip, tire pressure low, brake dragging, tire size improper, four wheels positioning incorrect and other failures. Yes Repair No Next step 2 Examine and confirm whether the throttle fully opens. Yes Next step No Replace or repair the throttle 3 Place the ignition switch on the “ON” position, and apply the failure diagnosis instrument to examine and confirm whether there are some failure information records. Yes Remove the displayed failure No Next step 4 Enable the engine to operate at idle speed, and, after the coolant temperature reaches the normal value, examine and confirm whether the ignition advance angle is normal. Yes Next step No Examine the others 5 Place the ignition switch on the “ON” position. Connect up an adaptor between ECU and harness, and examine and confirm whether the voltages of ECU’s intake manifold absolute pressure sensor, throttle position sensor, intake temperature sensor, coolant temperature sensor pins, ECU’s oxygen earth terminal and signal output terminal pins, ECU sensor’s signal earth terminal and ECU’s No 4 and 20 pins (applied for 4.5 to 5.0V sensor power supply) are normal. Yes Next step No Repair or replace harness 6 Enable the engine to operate at idle speed, and examine and confirm whether the intake pressure is 35 to 55 kPa. Yes Next step No Examine and repair 7 Connect the fuel pressure gage valve, short circuit the No 30 pin and No 87 pin of the fuel pump relay to enable the fuel pump to operate, and examine and confirm whether the fuel pressure is approximate 350 kPa. Yes Next step No 11 8 Apply the special connecting terminal to directly supply the fuel injector 12 V voltage from the battery, and examine the normal operation of fuel injector. Yes 10 No Next step 9 Rinse the fuel injector, and then reexamine the normal operation of fuel injector. Yes Next step No Replace the fuel injector 10 Examine and confirm whether the fuel deteriorates or contains water Yes Replace fuel No 16 11 Examine and confirm whether the fuel pressure is below Yes Next step |