Computers and Control Systems

TIMING:

Base Ignition Timing 7° BTDC At Idle [1]
Advance Ignition Timing 12° BTDC At Idle [1]

[1] Refer to ADJUSTMENT PROCEDURES.

RESISTANCE:

EGR Gas Temperature Sensor [2]
At 122°F (50°C) 69.4 - 88.5K Ohms
At 212°F (100°C) 11.9 - 14.4K Ohms
At 302°F (150°C) 2.8 - 3.6K Ohms

[2] California Only.

Ignition Coil:
Primary (cold) 0.41 - 0.50 Ohms
Secondary (cold) 10.2 - 13.8K Ohms

Oxygen Sensor Heater:
At 68°F (20°C) 5.1 - 6.3 Ohms

Idle Speed Control (ISC) Valve:
Between terminals B1 and S1 or S3 10 - 30 Ohms
Between terminals B2 and S2 or S4 10 - 30 Ohms

Coolant Temperature Sensor:
At -4°F (-20°C) 10 - 20K Ohms
At 32°F (0°C) 4 - 7K Ohms
At 68°F (20°C) 2 - 3K Ohms
At 104°F (40°C) 0.9 - 1.3K Ohms
At 140°F (60°C) 0.4 - 0.7K Ohms
At 176°F (80°C) 0.2 - 0.4K Ohms

Throttle Position Sensor:

CLEARANCE BETWEEN BETWEEN TERMINALS RESISTANCE
STOP SCREW AND LEVER

0in. (0mm) VTA-E2 0.3 - 6.3K Ohms
0.03in. (0.77mm) IDL-E2 2.3K Ohms or less
0.043in. (1.09mm) IDL-E2 Infinity
Full Open VTA-E2 3.5 - 10.3K Ohms
-- VC-E2 4.25 - 8.25K Ohms

Air Flow Meter:

BETWEEN TERMINALS RESISTANCE

VS-E2 200 - 600 Ohms
(Measuring plate fully closed)

20 - 1200 Ohms
(Measuring plate fully open)

VC-E2 200 - 400 Ohms

FC-E1 Infinity
(Measuring plate fully closed)

Zero
(Other positions)

THA-E2

At -4°F (-20°C) 10 - 20K Ohms
At 32°F (0°C) 4 - 7K Ohms
At 68°F (20°C) 2 - 3K Ohms
At 104°F (40°C) 0.9 - 1.3K Ohms
At 140°F (60°C) 0.4 - 0.7K Ohms