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

Dodge Sprinter
Low power after warms up. Codes P0402 - P2457 - P0404


Nissan Frontier
Yes light on

No outright symtoms just sets code po440 then po441 after a week when being reset

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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

P0660 how to fix code po660

P0660 check engine light on po660

P0660 po660

P0191 Lincoln Continental
car bucks before shifting at low throttle and multi meter show voltage drop to fuel pump

P0191 Lincoln Continental
car bucks before shifting at low throttle and multi meter show voltage drop to fuel pump

Other Check Engine Light Codes

P0189   Fuel Temperature Sensor B Circuit Intermittent
P0234   Turbo/Super Charger Overboost Condition
P0241   Turbo/Super Charger Boost Sensor 'B' Circuit Low
P0307   Cylinder 7 Misfire Detected
P0341   Camshaft Position Sensor 'A' Circuit Range/Performance (Bank 1 or Single Sensor)
P0440   Evaporative Emission Control System
P0443   Evaporative Emission Control System Purge Control Valve Circuit
P0638   Throttle Actuator Control Range/Performance (Bank 1)
P0863   TCM Communication Circuit
P0972   Shift Solenoid "A" Control Circuit Range/Performance

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