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 MANUALSCHEVROLET1982CAVALIER L4-112 1.8LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSA/C - PUREGUARD 2 OPERATING ALERTACTIVE FLOW CONTROL
1982 Chevrolet Cavalier L4-112 1.8L
Active Flow Control
1982 Chevrolet Cavalier L4-112 1.8LSECTION Active Flow Control
Active Flow Control
The J-41810-100A Active Flow Control (AFC) protects the PureGuard 2 from damage caused by flooding from liquid refrigerant, oil or leak dye. A 1 amp delay reaction fuse protects the internal electronics in the AFC. The chance that this fuse will burn out is very minimal but if it does, it can be easily diagnosed as follows:
^ The red light in the AFC will be on.
^ The PureGuard 2 will go through the warm-up procedure and test the ACR4 tank.
^ The manifold gauges will show A/C system pressure (if there is refrigerant left in the system), but the PureGuard 2 will not run a test even though the low side gauge shows over 30 psi of pressure.
^ The fail-safe design of the AFC keeps its internal solenoid valve closed in a "no power" condition and no refrigerant will flow into the PureGuard 2.
The J-41810-100A Active Flow Control (AFC) protects the PureGuard 2 from damage caused by flooding from liquid refrigerant, oil or leak dye. A 1 amp delay reaction fuse protects the internal electronics in the AFC. The chance that this fuse will burn out is very minimal but if it does, it can be easily diagnosed as follows:
^ The red light in the AFC will be on.
^ The PureGuard 2 will go through the warm-up procedure and test the ACR4 tank.
^ The manifold gauges will show A/C system pressure (if there is refrigerant left in the system), but the PureGuard 2 will not run a test even though the low side gauge shows over 30 psi of pressure.
^ The fail-safe design of the AFC keeps its internal solenoid valve closed in a "no power" condition and no refrigerant will flow into the PureGuard 2.
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.