Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM1990SHADOW BASE, 4D HATCHBACK, 2.5 J, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGIDLE SPEED & IGNITION TIMING
1990 Dodge and Ram Shadow Base, 4D Hatchback, 2.5 J, Automatic
Idle Speed & Ignition Timing
1990 Dodge and Ram Shadow Base, 4D Hatchback, 2.5 J, AutomaticSECTION Idle Speed & Ignition Timing
Ensure idle speed and ignition timing are set to specification. For adjustment procedures, see ON-VEHICLE ADJUSTMENTS article.
NOTE:
Curb idle speed is controlled by SBEC and not adjustable.
IGNITION TIMING (Degrees BTDC @ RPM)
| Application | Man. Trans. | Auto. Trans. |
|---|---|---|
| 2.2L & 2.5L TBI | 12 @ 850 | 12 @ 850 |
| 2.2L Turbo | 12 @ 990 | 12 @ 990 |
| 2.5L Turbo | 12 @ 950 | 12 @ 900 |
| 3.0L | 12 @ 800 | 12 @ 700 |
| 3.3L | 16 @ 750 | |
RENDER: 1.0x
NO RELATED
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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.