Name: Knock Sensor for Holden 3.8L V6 Ecotec L67 LN3 L36 Commodore Calais 10456287
Brand: Aftermarket OEM Replacement
SKU: CKS101
Price: 79.45 AUD
Availability: InStock

BRAND NEW *OEM Quality* knock sensor to suit Holden 3.8L V6 Ecotec engines - L67 supercharged, LN3 and L36 - across the Commodore, Calais, Statesman, Caprice, Monaro and HSV V6 range.

Engine knock on the Ecotec V6 is one of those faults that gets worse fast if left unchecked - the ECU pulls timing aggressively to protect the engine, and performance and fuel economy suffer as a result. A failed knock sensor means the ECU can no longer detect detonation at all, leaving the engine vulnerable. This BRAND NEW direct-fit replacement restores knock detection immediately. Note: every Ecotec V6 uses 2 knock sensors - this listing covers 1. Most orders are dispatched same day and delivered express Australia-wide.

TO SUIT

This sensor suits all Holden 3.8L V6 Ecotec engines - L67 supercharged, LN3 and L36 naturally aspirated - fitted to the Commodore VS/VT/VU/VX/VY, Calais VS/VT/VX/VY, Statesman VS/WH/WK, Caprice VS/WH/WK, Monaro V2, Berlina, Crewman and HSV XU6/Grange models produced from April 1995 to July 2004. Also suits the Toyota Lexcen VS. See full vehicle list above.

FITMENT CHECK

This listing is for the 3.8L V6 Ecotec (L67 / LN3 / L36) engine only. For the 5.0L LB9 V8 and 5.7L LS1/Stroker V8 see the separate CKS101 V8 listings. Every Ecotec V6 requires 2 knock sensors - order 2 if replacing both.

OEM PART NUMBERS

10456287
8104562870

OTHER PART NUMBERS

STANDARD MOTOR: KS101
WELLS: SU8026
DELPHI: AS10154
FUELMISER: K1507
WALKER PRODUCTS: 213-325
NGK: KNS-002

PACKAGE INCLUDES

1 x BRAND NEW knock sensor (1-pin connector, without cable). 2 required per vehicle.

ABOUT THIS SENSOR

The knock sensor is a piezoelectric device threaded into the engine block that detects the vibration frequency signature of detonation (knock). It sends a voltage signal to the ECU, which retards ignition timing to eliminate knock before it causes engine damage. The Holden Ecotec V6 uses two sensors - one on each bank - and both must be functional for the engine management system to protect the engine correctly.

When a knock sensor fails the ECU typically stores a P0325-P0332 fault code and locks ignition timing at a retarded default, resulting in noticeably reduced power output and increased fuel consumption even when no actual knock is occurring.

COMMON SYMPTOMS OF FAILURE

Check engine light with codes P0325 P0326 P0327 P0330 P0331 P0332
Reduced engine power - ECU locks to retarded timing
Increased fuel consumption
Engine running hesitant or flat under load
Actual engine knock or pinging under acceleration
Failed vehicle emissions or roadworthy inspection

What does a knock sensor do?

The knock sensor detects high-frequency engine vibrations caused by pre-ignition, commonly called engine knock, ping, or detonation. Pre-ignition occurs when the air-fuel mixture ignites before the spark plug fires. The sensor sends this signal to the ECU, which responds by retarding ignition timing until the knocking stops. This protects the engine from the internal damage that sustained detonation causes.

What are the symptoms of a failing knock sensor?

Because the ECU retards ignition timing as a safety measure when the knock sensor signal is lost or incorrect, symptoms are often performance-related rather than dramatic. Common signs include reduced power and sluggish acceleration particularly under load, increased fuel consumption, engine hesitation from low RPM, audible pinging under hard acceleration, and a Check Engine light with codes P0325 to P0334.

Can I drive with a faulty knock sensor?

Short distances are possible but not recommended. The ECU retards timing across the board without knock sensor feedback, leaving the engine running significantly below its designed performance level. On vehicles that use lower octane fuel or in hot conditions, the engine is also vulnerable to undetected detonation which can cause serious internal damage including piston and ring damage. Replace the sensor promptly.

Where is the knock sensor located?

The knock sensor is typically bolted directly to the engine block, often on the side or beneath the intake manifold. On V6 and V8 engines there may be two sensors, one per cylinder bank. The location varies significantly between makes and models - some are easily accessible while others require partial intake manifold removal. Check a workshop manual for your specific engine before attempting replacement.

How do I test a knock sensor?

Use an OBD2 scanner to check for codes P0325 to P0334 and review live data for ignition timing retard values higher than normal. You can also test the sensor resistance with a multimeter - most knock sensors read between 100,000 and 200,000 ohms. A sensor reading open circuit or zero ohms has failed. Some scan tools can also activate a knock simulation test to verify the sensor is responding correctly.

Does the knock sensor need to be programmed after replacement?

No programming is required for the sensor itself - it is a passive device that plugs directly in. However it is important to clear stored fault codes with an OBD2 scanner after replacement so the ECU can return to normal timing operation. On some vehicles the ECU will take several drive cycles of varied load and speed to fully relearn optimal timing after the sensor has been replaced.

Identification
SKU	CKS101
Brand	Aftermarket OEM Replacement
Part Numbers
Part Number	CKS101
Reference OEM Number	10456287
Other OEM Numbers	10456287, 8104562870
Trade Part Numbers	FUELMISER: K1507, WALKER: 213-325, NGK: KNS-002
Product Specifics
Sensor Type	ENGINE KNOCK SENSOR
Type	Sensor
Features	Direct Fit
Manufacturer Warranty	1 Year
Make	HOLDEN
Number Of Sensors	1
Other Details
Note	Every Ecotec V6 requires 2 knock sensors. This listing is for 1 sensor only - order quantity 2 if replacing both.
Unit Of Measure	ea