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Airtex 5S2221 Ignition Knock (Detonation) Sensor

Airtex 5S2221 Ignition Knock (Detonation) Sensor

Airtex
Brand:Airtex
Part Number: 5S2221
UPC: 080044671152
Weight: 0.22 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Airtex 5S2221 Ignition Knock (Detonation) Sensor for your vehicle. Buy now and secure your purchase online!

The Ignition Knock (Detonation) Sensor, also known as the Knock Sensor or KS, "listens" for certain harmonic frequencies associated with engine knock or "ping" and sends a voltage signal to the Engine Control Module (ECM) when detected. The ECM calculates proper ignition spark timing based in part on the Ignition Knock (Detonation) Sensor's signal. A malfunctioning or inoperative Ignition Knock (Detonation) Sensor can allow engine knock or ping to occur for which the ECM would otherwise adjust ignition timing to eliminate. It can also cause the Check Engine Light (CEL), Service Engine Soon (SES) or Malfunction Indicator Lamp (MIL) to illuminate and can set a trouble code (P-code) in the ECM when not functioning correctly. Not correcting a failed Ignition Knock (Detonation) Sensor condition can cause reduced fuel mileage and performance under load, increased emissions and damage to other components. Prolonged engine knock can cause internal engine damage from the piston skirt "slapping" against the cylinder wall.

Specifications:

Connector Gender:
Male
Connector Quantity:
1
Connector Shape:
Rectangular
Mounting Hardware Included:
No
Terminal Quantity:
2
Terminal Type:
Blade
Wiring Harness Included:
Yes
Wiring Harness Length:
19.00 in.
Country of Origin:
DE

Select a vehicle to narrow Airtex 5S2221 Ignition Knock (Detonation) Sensor fitment info!

Last Updated: 11/09/2018

Years Vehicle Per Vehicle Fit NotesFitment Notes
Ford E-150 Econoline

4.2L V6 Gas OHV
1
 
 

Ford E-150 Econoline



4.2L V6 Gas OHV
1 Per Vehicle
Ford E-150 Econoline Club Wagon

4.2L V6 Gas OHV
1
 
 

Ford E-150 Econoline Club Wagon



4.2L V6 Gas OHV
1 Per Vehicle
Ford E-250 Econoline

4.2L V6 Gas OHV
1
 
 

Ford E-250 Econoline



4.2L V6 Gas OHV
1 Per Vehicle
Ford Explorer

4.0L V6 Gas SOHC
1
 
 

Ford Explorer



4.0L V6 Gas SOHC
1 Per Vehicle
Ford Explorer

4.0L V6 Flex SOHC
1
 
 

Ford Explorer



4.0L V6 Flex SOHC
1 Per Vehicle
Ford Explorer

5.0L V8 Gas OHV
1
 
 

Ford Explorer



5.0L V8 Gas OHV
1 Per Vehicle
Ford Explorer

4.0L V6 Gas SOHC
1
 
8th VIN Digit: E
 

Ford Explorer



4.0L V6 Gas SOHC 8th VIN Digit: E

1 Per Vehicle
Ford Explorer Sport Trac

4.0L V6 Gas SOHC
1
 
 

Ford Explorer Sport Trac



4.0L V6 Gas SOHC
1 Per Vehicle
Ford Explorer Sport Trac

4.0L V6 Gas SOHC
1
 
 

Ford Explorer Sport Trac



4.0L V6 Gas SOHC
1 Per Vehicle
Ford Explorer Sport Trac

4.0L V6 Flex SOHC
1
 
 

Ford Explorer Sport Trac



4.0L V6 Flex SOHC
1 Per Vehicle
Ford Explorer Sport Trac

4.0L V6 Gas SOHC
1
 
 

Ford Explorer Sport Trac



4.0L V6 Gas SOHC
1 Per Vehicle
Ford F-150

4.6L V8 Gas SOHC
1
 
8th VIN Digit: W
 

Ford F-150



4.6L V8 Gas SOHC 8th VIN Digit: W

1 Per Vehicle
Ford Mustang

4.0L V6 Gas SOHC
1
 
 

Ford Mustang



4.0L V6 Gas SOHC
1 Per Vehicle
Ford Mustang

4.6L V8 Gas SOHC
1
 
 

Ford Mustang



4.6L V8 Gas SOHC
1 Per Vehicle
Ford Ranger

4.0L V6 Gas SOHC
1
 
 

Ford Ranger



4.0L V6 Gas SOHC
1 Per Vehicle
Mazda B4000

4.0L V6 Gas SOHC
1
 
 

Mazda B4000



4.0L V6 Gas SOHC
1 Per Vehicle
Mazda B4000

4.0L V6 Gas OHV
1
 
 

Mazda B4000



4.0L V6 Gas OHV
1 Per Vehicle
Mercury Mountaineer

4.0L V6 Gas SOHC
1
 
 

Mercury Mountaineer



4.0L V6 Gas SOHC
1 Per Vehicle
Mercury Mountaineer

4.0L V6 Flex SOHC
1
 
 

Mercury Mountaineer



4.0L V6 Flex SOHC
1 Per Vehicle
Mercury Mountaineer

4.0L V6 Gas SOHC
1
 
 

Mercury Mountaineer



4.0L V6 Gas SOHC
1 Per Vehicle