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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSDODGE AND RAM1983MIRADA 3.7 HREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMELECTRONIC FUEL CONTROL SYSTEMTESTING - ELECTRONIC SPARK CONTROL SYSTEM TESTSSPARK CONTROL COMPUTER SPARK TEST
1983 Dodge and Ram Mirada 3.7 H
Spark Control Computer Spark Test
1983 Dodge and Ram Mirada 3.7 HSECTION Spark Control Computer Spark Test
- Warm engine to normal operating temperature. Disconnect carburetor switch or unground it by placing a thin piece of cardboard between curb idle adjusting screw and switch. Be sure coolant temperature sensor/switch is connected and working properly.
- Remove and plug vacuum hose at vacuum transducer. Connect an auxiliary vacuum supply to vacuum transducer and apply 16 in. Hg. Increase engine speed to 1500 RPM and wait one minute before checking specifications. Advance specifications are in addition to basic advance. See Spark Advance Test Specifications table.
- If computer fails to obtain settings, replace computer.
NOTE:
The 3.7L engine is equipped with an accumulator (timer). The carburetor switch MUST be ungrounded for 30 seconds before checking specified spark advance schedule.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.