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EGR error 71, Check engine light ON - Yaris Toyota Cars & Trucks

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  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 48 Answers

SOURCE: 2000 Honda Accord EGR Valve Error P0401

-after you change the part you have to reset/clear the code

-this can be done by either:
(1) using the OBD2 code reader that Autozone used OR since option 2 (below) is very quick
(2) disconnecting the battery for about 30 seconds (this will delete all codes/radio presets/etc) but it will also clear the 'check engine' code
-this is what I do AFTER i write down my radio station presets :)

-hopefully the new EGR valve resolves your issue after you CLEAR the code
...but that code just means a an insufficient amount of Exhaust Gas recirculation (pressure difference) used to keep the emissions in check
-if it comes back, then there are a few other fixes to try also

-let me know if you need further assistance
-please remember to rate me `fix-ya`if it works

Posted on Nov 03, 2008

  • 11 Answers

SOURCE: Check engine light on due to issue with EGR valve

You need to reset the cars cpu, can do this by unhooking the negative side of the battery for about 10 minuts,then if the light comes on again,run the obd2 reader again,because there is another problem.

Posted on Apr 13, 2009

san luis
  • 11 Answers

SOURCE: 94 camry engine light on, code 71, how do i fix it

That is your Exhaust Gas Ricirculation system malfunction that you got, this part has to be replaced it costs between $130 dollars to $140 depending on the part store you go to.

Posted on May 05, 2009

  • 412 Answers

SOURCE: Error Code 406 EGR Positions Sensor

yes it need to replace egr valve assembly..make sure you disconnect battery while replacing..some times fault will return even after replacing valve..

Posted on May 23, 2009

  • 14 Answers

SOURCE: 2002 Crown Victoria check engine light stays on

Are you talking about insufficient egr flow? Possibly code p0401. it is probably your dpfe sensor .

Posted on Jul 08, 2009

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Check engine light flashes 4-3-7-1 what will be the code number

I would guess 2 codes--43 and 71. 43 says starter signal not reaching ECM. Are you push starting the truck? If not, might be a bad wire from the ignition switch to the computer.
71 is low EGR gas temp. Could be the sensor signal is not reaching the computer but more likely the EGR valve is not opening. May be stuck/clogged, has torn diaphragm, or is not getting vacuum. I believe the vacuum is controlled by a thermal valve. Check to see that the thermal valve is getting vacuum from the intake manifold and opening to deliver vacuum to the EGR valve when the engine reaches operating temp.



Dec 04, 2011 | 1991 Toyota Pickup

1 Answer

Check engine light on. code 71

The Code 71 points to a problem with the EGR Gas Temp Sensor. This sensor measures the temperature of the exhaust gases present at the EGR valve and sends this information to the ECU. The ECU compares this reading to its programmed nominal value to confirm proper EGR system operation. If the temperature is too high, the ECU senses that exhaust gases are not being recirculated and NOx emissions will be abnormal. With this sensor faulty it can very well effect fuel delivery, which can lower MPG's (sample Camry engine).


Carbon build up on the EGR valve? There's always a possibility given the age of the vehiclee, but seeing as you are experience a loss of MPG's and have a straight forward Code71, i'd suspect a faulty sensor. Obviously cleaning the EGR ports is always a big help, but i'd venture to say that faulty sensor is playing a big role as well.

While replacing the sensor, clean the sensor's port and clean the EGR ports and you should see an improvement. The EGR Valves on these vehicles are fairly solid, and I don't think it will require replacement. Just a good cleaning of all the EGR related items/ports.

Hope this helps (remember to rate this answer).

May 25, 2011 | Toyota Camry Cars & Trucks

2 Answers

Toyota 4runner 1994 engine codes 12,52,71 what are these

Code 12 Engine revolution signal missing
Code 52 Knock sensor fault
Code 71 EGR system malfunction

May 04, 2011 | Toyota 4Runner Cars & Trucks

1 Answer

1994 4Runner V6 (non-4wd) error code 71

2.4L code 71 - EGR Gas Temp Sensor
3.0L code 71 - EGR Gas Temp Sensor
There is a test procedure to tell if bad sensor or wiring problem, can email diagram to you if like need an email address to send to

Feb 08, 2010 | 1994 Toyota 4Runner

1 Answer

I have a check engine for a 1995 Toyota Corolla- diagnostic code 71...What is it and also what parts do I need? Thanks

EGR system malfunction. Check EGR circuit/switches. Check/replace EGR vacuum hoses. Check/replace EGR Vacuum Modulator. Remove and clean EGR valve. Test EGR valve by applying vacuum to open. If necessary, replace.

Nov 22, 2009 | 1995 Toyota Corolla

2 Answers

Engine check light is on and code 71 is displayed. What is the most likely failure?

The most likely failure is your egr valve is stuck, but here is a link for a little more help:

Nov 19, 2009 | 1995 Lexus ES 300

2 Answers

I have a 94 4runner that is flashing a 71 code. can anyone tell me what is broken?

Code 71 is EGR or The EGR VSV. The ufo delie next to the egr. Might even be the temp sensor inside the egr. I would replace all three. Or even check your vacuum lines, they may be routed wrong!

Sep 08, 2009 | 1994 Toyota 4Runner

2 Answers

94 camry engine light on, code 71, how do i fix it

Go to Autozone and have your current EGR Valve, removed from the car, tested and they will determine if it is defective. They tested 2 for me, and neither was a replace, just a clean and they worked great. If they don't have a brand that suits your wants, just test it, then buy the new somewhere else, no commitment to buy.
The most common problem with these EGR valves is they get plugged up from carbon build up. Best way to test it is with a little hand held vacuum pump. Hook it up to the EGR valve and with the engine running at idle and squeeze the vacc pump handle a couple times to open the EGR valve. That should kill the engine. If it dosent, the EGR valve is probably plugged up. At that point you'll have to take it off and clean the carbon out. Even if you have your mechanic check into it, it shouldnt be that expensive to remove it and clean it out or replace it.

Good Luck and hope this helps: Oh and I think theres two EGR.. check the one on the bottom of the engine to. I am not sure but i think there are two EGR valves on your camery.  

May 05, 2009 | 1995 Toyota Camry

1 Answer

1995 Toyota Camry - Code 71 - failed emissions tests

replace the EGR switching valve and have the machanic clear the engine check light. I think it should help

Mar 25, 2009 | 1995 Toyota Camry

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