Chrysler P1402 Error Code: How to Fix It

Q: What causes Chrysler P1402 error code?

The P1402 code is typically caused by a faulty EGR position sensor, damaged wiring to the sensor, corroded electrical connections, or carbon buildup preventing proper EGR valve operation. The sensor circuit malfunction prevents the PCM from accurately monitoring EGR valve position.

Q: Can I drive my Chrysler with P1402 code?

You can drive short distances with P1402, but it's not recommended for extended periods. This code can cause rough idling, reduced fuel economy, and increased emissions. Continued driving may lead to more serious engine problems or failed emissions testing.

Q: How much does it cost to fix P1402 on a Chrysler?

Repair costs vary depending on the root cause. Cleaning electrical connections might cost $50-100 in labor. If you need a new EGR valve assembly, expect to pay $150-400 for parts plus $100-200 labor. DIY repairs can save significantly on labor costs.

Q: Will P1402 code clear itself?

The P1402 code will not clear itself unless the underlying problem is fixed. Even if the check engine light goes off temporarily, the code will return when the PCM detects the same EGR position sensor circuit malfunction during its diagnostic routine.

Q: How do I prevent P1402 code from returning?

Prevent P1402 by using quality fuel with detergent additives, following regular maintenance schedules, and addressing check engine lights promptly. Consider periodic EGR system cleaning as part of routine maintenance, especially in vehicles with high mileage or those used primarily for short trips.

Abstract

The P1402 error code in Chrysler vehicles indicates a malfunction in the EGR (Exhaust Gas Recirculation) position sensor circuit. This sensor monitors the position of the EGR valve to ensure proper exhaust gas flow back into the engine for emission control. When this circuit fails, you may experience rough idling, reduced fuel economy, or increased emissions.