What does the EGR code p0402 mean?
What does the EGR code p0402 mean?
What Does Code P0402 Mean? A malfunctioning EGR system will cause several codes such as P0400 or P0401-P0409 to be displayed. Often a P040x code is caused by a blockage in the EGR system and is not caused by a failed component.
What was the cause of the p0402 gas leak?
P0402 – Exhaust gas recirculation (EGR) system -excessive flow detected Trouble Code Fault Location Probable Cause P0402 Exhaust gas recirculation (EGR) system – Hose leak/blockage, basic setting not ca
How to fix the p0402 OBD-II trouble code?
What repairs can fix the P0402 code? 1 Replacing the stuck open EGR valve 2 Replacing a broken catalyst in the exhaust 3 Replacing an EGR temperature sensor or cleaning the carbon off of it to repair it if it registers too much of a temperature change 4 Replacing the EGR backpressure control valve
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
What does p0402 mean on a check engine light?
P0402 is a diagnostic trouble code (DTC) for “Exhaust Gas Recirculation Flow Excessive Detected”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.
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 are the symptoms of the p0400 OBD-II trouble code?
The EGR temperature sensor is not registering a temperature change when the EGR valve is opened. The EGR passages are blocked and will not allow flow of exhaust gases into the intake manifold. What are the symptoms of the P0400 code? The Check Engine Light will be illuminated and the code is set in ECM memory.
When to set the dpfe code p0402?
Amount of decrease in exhaust back pressure as measured by the Delta or Digital Pressure Feedback EGR Sensor (DPFE) Code P0402 is often set when the EGR monitoring criteria are excessively triggered—triggers include too much Manifold Pressure change, too much Oxygen sensor change, and too much EGR Temperature change.
What does the PCM do for a p0401?
For a P0401 (insufficient flow) or P0402 (excessive flow) the PCM will monitor the following components during the test sequence shown above: MAP sensor – if the EGR valve is vacuum controlled the PCM will read changes in the MAP sensor output in response to exhaust gas recirculation.
What causes a p040x code on an intake manifold?
A malfunctioning EGR system will cause several codes such as P0400 or P0401-P0409 to be displayed. Often a P040x code is caused by a blockage in the EGR system and is not caused by a failed component. Most common problem – carbon blockage where the EGR valve connects to the intake manifold
What does insufficient detected code p0401 mean?
Exhaust Gas Recirculation (EGR) Flow Insufficient Detected Code P0401 Meaning The exhaust gas recirculation (EGR) recirculates small amounts of exhaust back into the combustion chambers of the engine in order to decrease the combustion temperature, thereby reducing the formation of smog-producing nitrogen oxides.
What does the code p0402 mean on an engine?
P0402 is an OBD-II generic code that the engine control module (ECM) has detected indicating the engine exhaust gas recirculation (EGR) valve is flowing too much recirculated exhaust gases when it is commanded to open the flow of gases into the intake manifold.
Which is the opposite of p0401 in Toyota?
P0402 Code – Toyota. Excessive EGR flow. P0402 is the “Exhaust Gas Recirculation Flow Excessive Flow Detected” code, and it’s basically the opposite of a P0401 code.
Which is the opposite of p0401 excessive EGR flow?
Excessive EGR flow. P0402 is the “Exhaust Gas Recirculation Flow Excessive Flow Detected” code, and it’s basically the opposite of a P0401 code.
What is the dpfe sensor on Ford p1400?
The system employs an EGR Valve, an Electronic Vacuum Regulator (EVR), and a Delta Pressure Feedback EGR sensor (DPFE). The DPFE Sensor measures EGR flow across an orifice located inside the special EGR Tube.
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
What causes the p0402 code on an EGR?
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. Need help with a P0402 code?
What does a p1400 Ford engine code mean?
Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. What does this mean? The cost to diagnose the P1400 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.
What does the EGR system on a Ford p1400 do?
P1400 FORD Description The purpose of the Exhaust Gas Recirculation (EGR) system on your engine is to limit oxides of nitrogen (NOx) emissions. This is done by redirecting small amounts of exhaust gas back through the upper intake to get mixed in with the air/fuel charge.
