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 MANUALSCHEVROLET1990LUMINA APV V6-191 3.1LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTFUEL DELIVERY AND AIR INDUCTIONSPECIFICATIONSMECHANICAL SPECIFICATIONSIDLE SPEED
1990 Chevrolet Lumina APV V6-191 3.1L
Idle Speed
1990 Chevrolet Lumina APV V6-191 3.1LSECTION Idle Speed
CONTROLLED IDLE SPEED
Idle speed is controlled by the ECM and is NOT adjustable.
MINIMUM IDLE AIR RATE
Transmission Gear Engine Speed OPEN/CLOSED Loop [1]
Auto. N 600 +/- 50 CL
[1] Let engine idle until proper fuel control status (OPEN/CLOSED loop) is reached.
Idle speed is controlled by the ECM and is NOT adjustable.
MINIMUM IDLE AIR RATE
Transmission Gear Engine Speed OPEN/CLOSED Loop [1]
Auto. N 600 +/- 50 CL
[1] Let engine idle until proper fuel control status (OPEN/CLOSED loop) is reached.
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.