GM Service Manual Online
For 1990-2009 cars only
Table 1: Fuel and Emission System SOHC (L24)/DOHC (LL0)

Fuel and Emission System SOHC (L24)/DOHC (LL0)

Measurement

Standard

Service Limit

Metric

English

Metric

English

Air System

Intake Manifold Vacuum, No Load

Idle: 73 kPa

21 in Hg max.

50 kPa

15 in Hg min.

Air Inlet Restriction, No Load, Between Air Filter and Throttle Body

4,000 RPM: 60 kPa

20 in Hg max.

Crankcase Pressure/Vacuum

At 4,000 RPM, No Load

Positive: 1 kPa

4 in H2O max.

Positive: 2.5 kPa

10 in H2O max.

Coolant Temperature 90°C (195°F)

Negative: 3 kPa

12 in H2O max.

Negative: 3.5 kPa

14 in H2O max.

Fuel Pump

SOHC (L24)/DOHC (LL0)

Dead Head Pressure at 12 volts

450-650 kPa

65-94 psi

Pressure Decay

55 kPa

8 psi max.

Fuel System SOHC (L24)/DOHC (LL0)

Operating Pressure

276-370 kPa

40-55 psi

  

Pressure Decay in 5 Minutes

55 kPa

8 psi max.

  

Fuel Tank

Capacity

45.9 L

12.1 gal

  

Specification

RPM

Transaxle Gear

Fuel Cut-Off RPM

Idle Speed (RPM)

SOHC (L24)

Manual (A/C ON/OFF)

750+/-50

Neutral

SOHC (L24)

5750+/-150

SOHC (L24) Automatic

650+/-50

Drive

SOHC (L24)

6000+/-150

SOHC (L24) Automatic, With A/C ON

775+/-50

Drive

DOHC (LL0)

6750+/-150

DOHC (LL0) Manual, With A/C ON

850+/-50

Neutral

875+/-50

Neutral

DOHC (LL0) Automatic, With A/C ON

750+/-50

Drive

775+/-50

Drive

Min. Air Idle Speed

SOHC (L24) and DOHC (LL0)

0 RPM (Stall) to 700 RPM

Neutral

Note: Do not adjust minimum idle speed.