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Positive Crankcase Ventalation and Exhaust Gas Recirculation

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What is the sensor PO400 on a 1998 esteem?

EGR { Exhaust Gas Recirculation} Flow Malfunction Early Exhaust Gas Recirculation (EGR) systems components include and EGR Valve, and Engine Control Μodule (ECΜ) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Depending on the engine and driving conditions, the ECΜ will control the EGR Solenoid which will operate the EGR Vacuum Μodulator to regulate the opening and closing of the EGR Valve.


Where do you find the egr on a 96 mercury villager?

The EGR valve is located on the top of the intake manifold rearward of the throttle crank under the cowl. If you suspect a problem with the system, you may want to check the EGR control solenoid, the EGR control backpressure transducer and all vacuum hoses.


What is the purpose of the EGR valve position sensor on a 1994 Explorer XLT?

The PCM controls the EGR valve, so the EGR position sensor tells the PCM what position the EGR valve is in, so it can control the EGR valve and ake other necessary adjustments.


What does the egr sensor do on a 1997 dodge neon?

AN EGR (Exhaust Gas Reclaimer) sensor monitors the EGR and sends a signal to the ECM (Engine Control Module) letting the ECM know if the EGR is open or closed or anywhere between.


What is Ford trouble code 0409 What do I buy to fix it.?

The P0409 code indicates an exhaust gas recirculation (EGR) circuit malfunction. It could be a bad EGR valve, a bad EGR optical sensor, a bad powertrain control module (PCM), or a bad electronic control Module (ECM), also referred to as the engine control module.


What is a 2007 CHRY TOWN EGR position sensor?

An EGR (Exhaust Gas Re-circulation) valve position sensor sends a signal to the ECM (Engine Control Module) what the EGR valve position is. This is to confirm that the EGR has responded to a command sent from the ECM.


What is an EGR vacuum solenoid on a 1991 4.3 s10 and what it does?

The EGR (Exhaust Gas Recirculation) valve opens when vacuum is applied. The EGR vacuum solenoid opens and closes the vacuum supply to the EGR valve when it is commanded to do so by the ECM (Engine Control Module).


Where are the idle air control valve and the EGR valve on a 1991 Chevy Corsica 4-cylinder LS?

The idle air control valve is located on the throttle body, and the EGR valve is located on the intake manifold.


What is meaning of computer code po403?

It means something is not right with the car's EGR valve.These are possible causes, starting with the most common.Bad EGR solenoidExcessive resistance in control circuit (PCM controlled ground) due to an open, chafing or damage to the harnessPoor connection at the EGR solenoid harness (worn or loose pins)Water intrusion at the EGR solenoid harnessBlockage in EGR control solenoid holding solenoid open or closed causing excessive resistanceLoss of supply voltage to EGR solenoid


What does the code p1401 mean for a 2002 Mercury Cougar?

The code P1401 for a 2002 Mercury Cougar indicates a problem with the EGR (Exhaust Gas Recirculation) system, specifically related to the EGR flow being insufficient or not detected. This can be caused by a faulty EGR valve, clogged passages, or issues with the EGR control system. Addressing this code typically involves inspecting and testing the EGR components to restore proper function and emissions control.


What is the function of the 98 Toyota Camry egr vacuum modulator?

EGR stands for Exhaust Gas Recirculation. The purpose of the EGR system is to lower the amount of oxides of nitrogen the engine produces. The parts of the system are the vacuum actuated EGR control valve, the vacuum switching valve, and the EGR vacuum modulator assembly.


What is code P1409 for a Ford Taurus 2002?

Code P1409 for a 2002 Ford Taurus indicates an issue related to the EGR (Exhaust Gas Recirculation) system, specifically that the EGR valve is stuck open or there is a problem with the EGR control circuit. This can lead to increased emissions and poor engine performance. Common causes include a faulty EGR valve, vacuum leaks, or problems with the EGR control solenoid. It's advisable to inspect the EGR system components and associated wiring for faults to resolve the code.