Laser FWD L4-1997cc 2.0L DOHC Turbo (1993)
Main Relay (Computer/Fuel System): Testing and Inspection
Relay Inspection
1. Remove the multiport fuel injection relay.
2. Use jumper wires and connect multiport fuel injection relay terminal (10) to the battery (+) terminal and terminal (8) to the battery (-) terminal.
Caution: Be very careful when connecting the jumper wires because the relay will be damaged if a mistake is made with the contact terminals.
3. With battery (-) terminal jumper wire connected and disconnected, measure the voltage at multiport fuel injection relay terminals (4) and (5).
4. Use jumper wires to connect multiport fuel injection relay terminal (9) to the battery (+) terminal and terminal (6) to the battery (-) terminal.
5. Disconnecting the jumper wire on the terminal (-) side of the battery, check whether or not continuity exists across terminals (2) and (3) of the
multiport fuel injection relay.
6. Use jumper wires and connect multi port fuel injection relay terminal (3) to the battery (+) terminal and terminal (7) to the battery (-) terminal.
7. With the battery (-) terminal jumper wire connected and disconnected, measure the voltage at multiport fuel injection relay terminal (2).
