GSIC - Global Service Information Center

# SFI SYSTEM > PROBLEM SYMPTOMS TABLE

## for Preparation Click here

HINT:

  Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Symptom | Suspected area | See page
Engine does not crank (does not start) | 1. Starter signal circuit | Click here
2. Starter | Click here
3. ST relay | Click here
No initial combustion (does not start) | 1. ECM power source circuit | Click here
2. Fuel pump control circuit | Click here
3. ECM | Click here
No complete combustion (dose not start) | 1. Fuel pump control circuit | Click here
Engine cranks normally but difficult to start | 1. Starter signal circuit | Click here
2. Fuel pump control circuit | Click here
3. Compression | Click here
Difficult to start with cold engine | 1. Starter signal circuit | Click here
2. Fuel pump control circuit | Click here
Difficult to start with hot engine | 1. Starter signal circuit | Click here
2. Fuel pump control circuit | Click here
High engine idling speed (poor idling) | 1. A/C signal circuit | -
2. ECM power source circuit | Click here
Low engine idling speed (poor idling) | 1. A/C signal circuit | -
2. Fuel pump control circuit | Click here
Rough idling (poor idling) | 1. Compression | Click here
2. Fuel pump control circuit | Click here
Hunting (poor idling) | 1. ECM power source circuit | Click here
2. Fuel pump control circuit | Click here
Hesitation / Poor acceleration (poor driveability) | 1. Fuel pump control circuit | Click here
Surging (poor driveability) | 1. Fuel pump control circuit | Click here
Engine stalls soon after starting | 1. Fuel pump control circuit | Click here
Engine stalls during A/C operation | 1. A/C signal circuit (compressor circuit) | -
2. ECM | Click here
MIL is not illuminated | 1. MIL circuit | Click here