P0402 OBD Engine Code Logo   Code #P0402 -
Exhaust Gas Recirculation Flow Excessive Detected

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po402,rubs rough,starts hard

Looks to be a problem with the EGR which is the Exhaust Gas Recirculation. Three basic components of the EGR are the: valve, solenoid, and a differential pressure sensor. You should check the sensor to make sure its working correctly, make sure the EGR isn't clogged and check and make sure you're getting a good vacuum seal.

Toyota Tacoma


p0402 code

95 tacoma code p0300

No run the engine

Nothing yet


the idle is to high and i replace the egr valve

Dodge Dakota
doesn't seem to affect the performance

Hello I have a 2001 Ford Taurus my engine came on and the code number is PO402 can you tell me anything about it please


no power runs for alittle bit and dies.

The Check Engine Light is constantly on and acceleration not smooth.

Check engibe light came on

Mercury Grand Marquis
Check engines light came on

Mercury Grand Marquis
Car starts, runs smoothly, does not overheat. Check egine light comes on

Mercury Grand Marquis
Light comes on when car starts

Ford Explorer
obd2 p0402

check engine light comes on reolaced egr valve

Toyota Tacoma
P0402 EGR Flow Excessive - They say that the EGR modulator and the switching valve needs to be switched, but it will cost way too much. Can anyone help me out?

lack of powe check engine light staying on

Suzuki SX4
po0402 code

Suzuki Grand Vitara
Car idles roughly and little less power.


check eng liht on fail smog check

no simpttoms i replaced the vac control valv

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Tell us about Code #P0402

When did your Check Engine Light Come On?
Does your Car Start?
Does your Car Vibrate? Shake?
Does your Car Idle Roughly? Reduced Power?

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Other Comments

P0141 P0141

P0325 Nissan Maxima
Sometimes when the car slows to a stop, the car dies. Idle set at 900 rpm. Car starts back right away.

P0325 Nissan Maxima
Sometimes when the car slows to a stop, the engine shits off. Can start it right backmupmafter.

P0180 engine lights not deleted

P0180 Volkswagen Touareg

Other Check Engine Light Codes

P0012   'A' Camshaft Position - Timing Over-Retarded (Bank 1)
P0143   O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
P0265   Cylinder 2 Injector Circuit High
P0304   Cylinder 4 Misfire Detected
P0377   Timing Reference High Resolution Signal 'B' Too Few Pulses
P0445   Evaporative Emission Control System Purge Control Valve Circuit Shorted
P0467   EVAP Purge Flow Sensor Circuit Low Input
P0491   Secondary Air Injection System (Bank 1)
P0832   Clutch Pedal Switch 'A' Circuit High
P0851   Park/Neutral Switch Input Circuit Low

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