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 MANUALSCHEVROLET1995CHEVY VAN G30, VAN CARGO EXTENDED, 6.5 YREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES - 7.4LTROUBLE CODE CHARTSCODE 43, KNOCK SENSOR WITH SPARK CONTROL MODULEDIAGNOSTIC AIDS (KNOCK SENSOR WITH SPARK CONTROL MODULE)

1995 Chevrolet Chevy Van G30, Van Cargo Extended, 6.5 Y

Diagnostic Aids (Knock Sensor With Spark Control Module)

1995 Chevrolet Chevy Van G30, Van Cargo Extended, 6.5 YSECTION Diagnostic Aids (Knock Sensor With Spark Control Module)

Code 43 can be caused by a faulty knock sensor connection at ESC module or engine control module. Also, check controller-to-control module signal line for an open or short to ground.

Fig 1: Code 43 Schematic ("P" Series) Knock Sensor With Spark Control Module

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.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.