What Does P2287 Mean?
The injector control pressure (ICP) sensor signal is erratic or dropping out intermittently. This typically affects diesel engines with high-pressure common rail or HEUI injection systems where precise pressure monitoring is critical for injection timing and fuel delivery.
Common Causes
35%
Faulty ICP sensor with internal intermittent failure or contamination
30%
Corroded, loose, or damaged wiring/connector at ICP sensor
20%
Intermittent short or open in sensor circuit due to chafing or vibration damage
10%
PCM/ECM internal fault affecting sensor signal processing
5%
Contaminated fuel causing erratic pressure spikes affecting sensor readings
Diagnostic Steps
1
Step 1: Monitor ICP sensor live data while wiggling harness/connector to identify intermittent connection issues
2
Step 2: Inspect ICP sensor connector for corrosion, pin fit, and moisture intrusion; clean and apply dielectric grease if needed
3
Step 3: Check sensor circuit resistance and voltage supply per manufacturer specifications; compare to known-good values
4
Step 4: Scope ICP sensor signal looking for dropouts, noise, or erratic patterns during key-on and cranking
5
Step 5: If wiring and connections are good, replace ICP sensor and verify proper pressure readings
Estimated Repair Cost
$150 - $600
Parts + labor, varies by vehicle and location
The injector control pressure (ICP) sensor signal is erratic or dropping out intermittently. This typically affects diesel engines with high-pressure common rail or HEUI injection systems where precise pressure monitoring is critical for injection timing and fuel delivery.
The most common cause of P2287 (Injector Control Pressure Sensor Circuit Intermittent) is: Faulty ICP sensor with internal intermittent failure or contamination
Typical repair costs for P2287 range from $150 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May cause rough running, power loss, or stalling without warning. Can lead to sudden loss of power in traffic.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2287 to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel System - High Pressure Injection Control
Difficulty
Type
Generic (SAE)
Recommended Tools
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