When the DFI light comes on, that means there is a fault in the fuel system. You need to troubleshoot by running the self-diagnostic procedure. To do so, do the following:
1. Make sure the ignition switch is OFF.
2. Pull out the ECU and connect terminal #37 to the negative terminal on the battery using a piece of wire.
3. Turn the ignition switch to the ON position.
4. The FI indicator light will then display the fault code by flashing a series of blinks. Each fault will be displayed three times before the next fault. The coding goes like *blink*pause 1 second, then *blink*blink*. Such a series of blinks indicate code is #12.
5. The codes that may be displayed are: 11-throttle sensor malfunction; 12-vacuum sensor malfunction; 13-inlet air temp sensor malfunction; 14-water temp sensor malfunction; 15-atmospheric pressure sensor malfunction; 21- pickup coil #1 malfunction; 22-pickup coil #2 malfunction; 31-vehicle down sensor malfunction; 41-injector #1 malfunction; 42-injector #2 malfunction; 45-fuel pump malfunction; 51-ignition coil #1 primary winding malfunction; 52- ignition coil #2 primary winding malfunction
Most of these faults relate to a short or open in the wiring or in the sensor.
data supplied by: T- man
1. Make sure the ignition switch is OFF.
2. Pull out the ECU and connect terminal #37 to the negative terminal on the battery using a piece of wire.
3. Turn the ignition switch to the ON position.
4. The FI indicator light will then display the fault code by flashing a series of blinks. Each fault will be displayed three times before the next fault. The coding goes like *blink*pause 1 second, then *blink*blink*. Such a series of blinks indicate code is #12.
5. The codes that may be displayed are: 11-throttle sensor malfunction; 12-vacuum sensor malfunction; 13-inlet air temp sensor malfunction; 14-water temp sensor malfunction; 15-atmospheric pressure sensor malfunction; 21- pickup coil #1 malfunction; 22-pickup coil #2 malfunction; 31-vehicle down sensor malfunction; 41-injector #1 malfunction; 42-injector #2 malfunction; 45-fuel pump malfunction; 51-ignition coil #1 primary winding malfunction; 52- ignition coil #2 primary winding malfunction
Most of these faults relate to a short or open in the wiring or in the sensor.
data supplied by: T- man