P1662 , P1663 , P1664
Read the instructions below then
start the fault diagnostic procedure.
Symptom: P1662: Engine will not start. Check Engine on.
P1663: Engine does not stop until more than 1.3 seconds have passed since turning the ignition to OFF. Check Engine goes on the next time the ignition is turned to ON.
P1664: Engine does not stop until more than 1.3 seconds have passed since turning the ignition to OFF. Check Engine goes on the next time the ignition is turned to ON.
P1662
Fuel Cutoff Control Valve. Short to B+
P1663
Fuel Cutoff Control Valve. Open Circuit / Short to Ground
P1664
Fuel Cutoff Control Valve Malfunction
Fault symptom
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P1662:
Engine will not start. Check Engine on.
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P1663:
Engine does not stop until more than 1.3 seconds have passed since turning the ignition to OFF. Check Engine goes on the next time the ignition is turned to ON.
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P1664:
Engine does not stop until more than 1.3 seconds have passed since turning the ignition to OFF. Check Engine goes on the next time the ignition is turned to ON.
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Conditions
The following conditions apply for the DTC in question:
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P1662:
If the pump control module detects that its pin 5 has gone high without the EDC control module turning off the engine then the lead is shorting to B+.
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P1663, P1664:
If the engine speed drops below 1300 rpm and the vehicle speed drops below 5 km/h, the engine will be shut off when pin 105 goes high (approx. 10 V). This turns off the fuel control valve in the pump and the engine will stop. If the engine speed has not dropped below 200 rpm after 1.3 seconds then there is a fault in the lead between the EDC control module pin 105 and the pump pin 5. The diagnostic trouble code is generated the next time the ignition is turned on.
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