Engine not feeling accelerator pedal pressure

Fault diagnosisEngine not feeling accelerator pedal pressure

ENGINE NOT FEELING ACCELERATOR PEDAL PRESSURE

1.4 16v

The customer complains that: The engine does not react when the accelerator pedal is operated

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
	Check that the engine oil level is correct Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY Check that the air intake/vacuum circuit is working properly	Move on to Step 1	Oil level incorrect	Restore the correct engine oil level Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY
1	MODE PARAMETERS CHECK	All OK	Problems encountered	Operation
	Connecting the Examiner to the engine control unit, check that the mode parameters are correct	Move on to Step 2	Incorrect parameters	Restore the correct parameters
2	FUEL CIRCUIT CHECK	All OK	Problems encountered	Operation
	Check that the fuel pressure value is correct Op. 0520G46 FUEL SYSTEM - CHECK SUPPLY PRESSURE USING THE EXAMINER	Move on to Step 3	Fuel pump defective	Replace petrol pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
		Move on to Step 3	Pipes obstructed	Replace the pipes
3	ACCELERATOR PEDAL CHECK	All OK	Problems encountered	Operation
	Using the Examiner, check the correct voltage values of the accelerator pedal potentiometers.	End of diagnosis	Accelerator pedal potentiometer defective	Replace the accelerator pedal Op. 1068A20 ACCELERATOR PEDAL WITH BUILT-IN POTENTIOMETER - R.R
		End of diagnosis	Potentiometer wiring defective	Restore correct wiring.

1.9 JTD 8v, 1.9 JTD 16v

The customer complains that: The engine does not react when the accelerator pedal is operated

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	Check that the engine oil level is correct Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY Check that the air intake/vacuum circuit is working properly by carrying out the See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECK Check the condition of the fuel supply circuit and make sure that it is working properly by carrying out the See Test 1040OA Fuel supply circuit check Check the operation of the low pressure supply circuit by carrying out the See Test 1060OB Low pressure fuel supply circuit check	Move on to Step 1	Oil level incorrect	Restore the correct engine oil level Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY
1	MODE PARAMETERS CHECK	All OK	Problems encountered	Operation
	Select the following control unit at the diagnostic equipment: EDC16C39 Diesel electronic injection control unit. Check the value of the following parameters: · Battery voltage See Test 5530BB BATTERY VOLTAGE CHECK · Accelerator pedal · Accelerator position 1 AD/C · Accelerator position 2 AD/C See Test 1068AC ACCELERATOR PEDAL CHECKS · Target Diesel pressure · Measured Diesel pressure See Test 1060GH DIESEL PRESSURE CHECK	End of diagnosis

1.4 16v TJet

The customer complains that: The engine does not react when the accelerator pedal is operated

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	Connect the Examiner diagnostic equipment to the engine management control unit and check for the presence of errors. Check that the air intake/vacuum circuit is working properly	Move on to Step 1	Presence of errors	Continue following the instructions given by the diagnostic equipment.
		Move on to Step 1	Incorrect operation of the air circuit	Restore the correct operation of the air circuit.
1	FUEL CIRCUIT CHECK	All OK	Problems encountered	Operation
	Check that the fuel pressure value is correct by carrying out the See Test 1056BI FUEL SYSTEM RETURN PRESSURE CHECK See Test 1056BY FUEL SYSTEM SUPPLY PRESSURE CHECK	Move on to Step 2	Fuel pump defective	Replace petrol pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
		Move on to Step 2	Pipes obstructed	Replace the pipes
2	ACCELERATOR PEDAL CHECK	All OK	Problems encountered	Operation
	Using the Examiner, check the correct voltage values of the accelerator pedal potentiometers.	End of diagnosis	Accelerator pedal potentiometer defective	Replace the accelerator pedal Op. 1068A20 ACCELERATOR PEDAL WITH BUILT-IN POTENTIOMETER - R.R
		End of diagnosis	Potentiometer wiring defective	Restore correct wiring.

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