Question about 1994 Toyota Camry

Open Question

How do you correct an exhaust gas re-circulation flow problem ?

Code PO 401

Posted by Anonymous on

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I get a code PO 401, exhaust gas recirculation flow insufficient detected. What defected part will cause this code. my vehicle wont start but turns over.


P0401 typically is seen when the EGR valve itself is clogged with carbon, or the vacuum line leading to the diaphragm is either broken/leaking or disconnected. Also somewhere to check is the vacuum solenoid on the other end of the line attached to the diaphragm. If that solenoid is bad, the vacuum will not be applied to the diaphragm at the appropriate time. What year make model?

Sep 22, 2015 | Ford Cars & Trucks

1 Answer

00 Camry 2.2 egr problem po 401 low flow new egr valve new solenoid new transducer new map clean passages. I don't know what else to do


Here is an overview for the code as it relates to Toyota cars.
I would go back and make sure the tubes and pipes are clear.
In most cases, the passage is plugged up, or the sensor does not "see" the flow.

Possible causes
- EGR passage clogged
- Faulty EGR Vacuum Modulator Valve
- Faulty EGR Valve
- Faulty EGR solenoid valve
- EGR solenoid valve harness is open or shorted
- EGR solenoid valve circuit poor electrical connection
- Dead (Weak) battery
- Faulty EGR temperature sensor and circuit
- Exhaust gas leaks


Read more: http://engine-codes.com/p0401

Sep 05, 2014 | Cars & Trucks

1 Answer

PO 325 DTC was indicated on the diagnostic machine when checked. though i have just PO 105, 401, 1301 but all these have been sorted now left with PO 325. Pls does this imply?


code p0325 refers to knock sensor1 bank1--circuit malfunction===causes--wiring--poor connection ---knock sensor.. Check wiring and connections are clean and tight or replace the knock sensor.. The knock sensor adjusts the air /fuel mixture for proper combustion and reads when there is detonation occurring in the cylinder( Rattling-tinny sound under acceleration)

Nov 13, 2013 | 2000 Toyota Camry

1 Answer

Egr PO401


Code 401 is for low EGR air flow. The EGR valve allows exhaust gas to be recirculated back thru the intake and reburned.
The problem could be the EGR valve, the sensor, or a blocked line.

Jun 29, 2013 | Dodge Ram 1500 Cars & Trucks

1 Answer

Recirculation exaust gas detected code po 401 2.2 camry auto.... switch?


code po412 refers to secondary air injection(AIR) solenoid circuit malfunction Cause may include Wiring---AIR solenoid and ECM I would replace the AIR solenoid or check for power to it first.

PLEASE RATE THIS REPLY FOR ACCURACY

Mar 23, 2013 | Cars & Trucks

1 Answer

Scanned my computer , came up with a PO 171 and 174 what does this mean?


P0171 AND P0174
P0171 - System Too Engine Cylinder Lean Bank 1xicon.jpghttp://engine-codes.com/p0171.htmlForum CodePossible causes- Intake air leaks
- Faulty front heated oxygen sensor
- Ignition misfiring
- Faulty fuel injectors
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Faulty Mass Air Flow (MAF) sensor
- Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech notes Dirty air filter of faulty air flow sensor are common causes for the P0171 code of the problem.


P0174 FORD - Fuel Injection System Too Lean Bank 2xicon.jpghttp://engine-codes.com/p0174_ford.htmlForum CodePossible causes- Intake air leaks
- Faulty front heated oxygen sensor
- Ignition misfiring
- Faulty fuel injectors
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Faulty Mass Air Flow (MAF) sensor
- Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech notes The codes is usually set when there is an intake leak after the air flow meter, before replacing any parts check for loose or broken hoses and intake gasket leak. On Ford some models dirty air filter, and dirty or faulty air flow sensor are the cause of the problem.

Jul 27, 2012 | Cars & Trucks

1 Answer

Ford winstar 1999 check engine code P0401


PO 401 --- EGR Gas Insufficient Flow

There could be more than one reason for that

Have to know the system & diagnose it

Aug 26, 2011 | 1999 Ford Windstar

2 Answers

I have a OBD II Trouble Code PO401


PO-401
EGR Flow Insufficient Detected

May 15, 2010 | 1999 Chevrolet Lumina

1 Answer

PO 1665 code 1998 Buick Rivera, PO 440 code


EVAP is for Evaporative emissions control system, so no this is not EGR, that is Exhaust Gas Recirculation system, as far as the P1665 goes it is related to the other trouble code P0440, u will need to replace the EVAP system Purge flow control solenoid. This should correct both problems after u replace the part disconnect the battery for 5 min's to reset system.

May 14, 2009 | 1998 Chevrolet Monte Carlo

Not finding what you are looking for?
1994 Toyota Camry Logo

Related Topics:

12 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8516 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...