October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Fuel Injectors & Resistors
- Connect tachometer to engine. Start engine and run at idle. Remove harness connector from injectors one at a time. Engine idle speed should drop 100-300 RPM as each injector is disconnected. If engine idle speed does not drop, check the wiring connector, injector resistance or injection signal from the computer.
- Disconnect electrical connector from each injector. Measure injector resistance. See INJECTOR RESISTANCE SPECIFICATIONS
table. If injector not to specification, replace injector.
INJECTOR RESISTANCE SPECIFICATIONS
| Application |
Ohms |
| Subaru |
2-3 |
- Disconnect resistor block. Measure resistance between terminal No. 5 and Nos. 1, 2, 3 and 6. If reading is not 6 ohms, replace resistor block.