4-CYLINDER BASE IGNITION TIMING

Application &/or Calibration Code

⁽¹⁾ (Degrees BTDC @ RPM)

1.9L CFI

10 @ 760-840

1.9L PFI

10 @ 900-1100

2.2L PFI

Non Turbo

6 @ 750

Turbo

9 @ 750

2.3L OHC

8-05A-R10 & 8-06A-R10

10 @ 770-830

All Others

Auto. Trans.

10 @ 790-850

Man. Trans.

10 @ 820-880

2.3L HSC PFI

Auto Trans.

15 @ 690-750

Man. Trans.

15 @ 820-880

2.3L HSC MA PFI ⁽²⁾

9-25C-R10 & 9-26D-R10

Auto Trans.

15 @ 680-760

Man. Trans.

15 @ 810-890

All Others

Auto Trans.

15 @ 690-750

Man. Trans.

15 @ 820-880

2.5L CFI

10 @ 675-725

⁽¹⁾	With automatic transmission in Drive.

⁽²⁾	MA engine is a High Output engine with Mass Airflow Meter.

4-CYLINDER COMPUTED IGNITION TIMING

Application

(Degrees BTDC @ RPM)

1.9L MA PFI ⁽¹⁾

31-34 @ 950-1050

1.9L CFI

17-22 @ 820-900

2.3L OHC PFI

16-22 @ 850-900

2.3L HSC MA PFI ⁽¹⁾

3-14 @ 830-880

2.3L HSC PFI

17-19 @ 840-880

2.5L CFI

22-25 @ 820-850

⁽¹⁾	MA engine is a High Output engine with Mass Airflow Meter.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

4-Cylinder Ignition Timing Specifications

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?