What can cause a P0402 code?

What can cause a P0402 code?

Code P0402 is triggered when the EGR temperature sensor sees more of a temperature change than the EGR has commanded to open. This is usually caused by the EGR backpressure control valve getting a burnt diaphragm from the exhaust backpressure over time or from a partly blocked catalyst.

What is the p0402 code on a Ford F-150?

It’s important to note that code P0402 is often set in Ford vehicles (especially on a Ford F-150) that use a differential pressure feedback EGR (DPFE) sensor to determine how much EGR is flowing. Aside from Ford, users have also reported P0402 in Toyota, Nissan, Peugeot, and Lexus vehicles.

How much does it cost to repair a p0402 Ford engine?

The cost of diagnosing the P0402 FORD code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

When to use the Check Engine light p0402?

EGR is only needed in limited amounts under certain driving conditions. If the PCM detects that there is excessive EGR flow, it may turn on the check engine light and trigger code P0402.

What does the DTC p0402 stand for?

Diagnostic Trouble Code (DTC) P0402 stands for Exhaust Gas Recirculation “A” Flow Excessive Detected. It indicates that the powertrain control module (PCM) has detected excessive EGR. It is one of the generic diagnostic trouble codes in a number of makes and models that are related to the vehicle’s EGR.

How much does it cost to diagnose p0402 Ford code?

Labor: 1.0 The cost of diagnosing the P0402 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour. When is the P0402 FORD code detected? High Exhaust Gas Recirculation (EGR) flow control is detected

How to fix a Ford Taurus code p0402?

How do I fix code P0402 FORD Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. P0402 FORD Tech Notes There is a factory service bulletin for the following Ford models: 2000-2002 Ford Taurus

Is there a problem with the EGR valve p0402?

With a P0402, it is common for people to replace the EGR valve, only to have the problem return. The most likely solution is to replace the DPFE sensor. Check the voltage at the DPFE sensor both at idle and when the EGR is open Related EGR codes: P0400, P0401, P0403, P0404, P0405, P0406, P0407, P0408, P0409

What is the OBD code for Ford engine?

P0402 Ford. Ford P0402 OBD-II Trouble Code Definition: P0402 Exhaust Gas Recirculation Flow Excessive Detected.