## PGM-FI System

#### DTC Troubleshooting (cont'd)

11-83

32. Measure voltage between body ground and the appropriate ECM/PCM connector terminal (see table).

ECM/PCM CONNECTOR B (24P)

Wire side of female terminals

PROBLEM CYLINDER | DTC | ECM/PCM TERMINAL | WIRE COLOUR
No. 1 | P0301 | B5 | BRN
No. 2 | P0302 | B4 | RED
No. 3 | P0303 | B3 | BLU
No. 4 | P0304 | B2 | YEL

Is there battery voltage?

YES | - Go to step 33.
NO | - Go to step 42.

33. Turn the ignition switch OFF, and remove the air cleaner (see page 11-146).
34. Disconnect the injector 2P connector on the problem cylinder.
35. Measure the resistance between the injector 2P connector terminals No. 1 and No. 2.

INJECTOR 2P CONNECTOR

Terminal side of male terminals

Is there 10 ohms-13ohms?

YES | - Go to step 36.
NO | - Replace the injector (see page 11-113).

36. Exchange the injector in the problem cylinder with one from another cylinder.
37. Install the air cleaner (see page 11-146), and reset the ECM/PCM.
38. Let the engine idle for 2 minutes.
39. Test-drive the vehicle several times in the range of the freeze data or under various conditions if there was no freeze data.
40. Check the DTC or the Temporary DTC with a scan tool.

Is DTC or Temporary DTC P0301, P0302, P0303, or P0304 indicated?

YES | - Go to step 41.
NO | - Intermittent misfire due to injector malfunction etc.

41. Determine which cylinder (s) had the misfire.

Does the misfire occur in the other cylinder whose injector was exchanged?

YES | - Replace the faulty injector.
NO | - Substitute a known-good ECM/PCM and recheck (see page 11-6). If symptom/indication goes away, replace the original ECM/PCM.

42. Turn the ignition switch OFF.
43. Remove the air cleaner (see page 11-146).
44. Disconnect the injector 2P connector on the problem cylinder.
45. Turn the ignition switch ON (II).