TOYOTA P0402 EGR Excessive Flow Detected

How to troubleshoot P0402 code on TOYOTA 2ZR & 3ZR 4 Cylinder Engines

[@taxfree4]

Perfect example of a step by step diagnosis, textbook. Great job Peter

[@ftwbreeze]

Good morning Peter. Great diagnosis as usual my friend. Just another day in paradise! Thank you for sharing your kindness

[@adrian-xy7zt]

Peter you are the best.

[@styverdyver]

Nice diagnosis! I loved my 97 Tacoma. Had 225k on it when it was bought back by Toyota for frame recall. Got a large check for my "loss". I now have an 06 tundra Dbl Cab SR5 and love it too! I do miss that 97 though! Nothing wrong with it but the frame!

[@darranhawthorne3977]

Great VIdeo, If only this came out a few months ago.

[@toycoma98]

I deleted my egr on my 2rz. I just soldered a 10k resistor on the temp sensor wire after cutting it. Made a blockoff plate on the intake manifold. Threw away all the egr components. While i was at it, i also bypassed the coolant lines on the throttle body. Connected the hose from the hard lines together. No check engine light.

[@xrisdavid785]

Thank you Peter......always fun to watch you !!

[@santiagomatamoros7885]

I fixed that exact same problem on my old man’s 1999 Tacoma (176k) Amazon had the Aisin-marked part at a discounted price of $19 because it was an “open-box” item or something and arrived in 2 days. OEM forever!

[@toycoma98]

Amazon sometimes have counterfeit parts.

[@robertlehouillier5497]

Great show

[@Nick41622]

The best thing to do is delete the EGR valve. The engine will run better & have more power. This is what we do in Australia.

[@DAKYOF]

It won’t pass the smog check inspection required in California

[@RenRageD]

​@DAKYOF if you delete it and have no check engine light with out chipping the ecu, will it still not pass? I'm having this problem I've cleaned the valve and replaced sensors and still get check light. I'm in Cali too. Any advice would be nice. Thanks in advance.

[@Nick41622]

​@@DAKYOF We have no yearly inspection in northern Australia, so we don't care if the light comes on.

[@DAKYOF]

You will need an scanner and confirmed that all the sensors are set to be smoged check if you just delete the EGR valve but the ECU won’t read it and that is enough to fail, not even try or waist your money to fail the smog.

[@DAKYOF]

@@Nick41622 it makes sense, I will do that too after inspection but the problem is when we have the smog check inspection here in California is every 2 years. I am struggling to diagnose my code. This video is very helpful I already on the process.

[@name-ob6np]

Great Job Peter !!

[@drumtwo4seven]

Excellent 👍

[@bblod4896]

Use the parts you can acquire. A truck that old, save some money and use aftermarket.

[@warthhoh]

Also the fuel filter lives under intake manifold

[@MarzNet256]

That VSV for the EGR is kinda like a pneumatic relay (small flow controls large flow).

[@flir67man84]

Awesome truck ..how is frame

[@efil4kizum]

might be A0K in California?

[@sheerwillsurvival2064]

Great video 👍🏻

[@toycoma98]

What repair manual is that? I own chilton and haynes, that one looks different.

[@rogerb6611]

Looked like a factory Manual

[@hotrunny]

Awesome Taco!!! Rarest paint color too. What is the color code?

[@efil4kizum]

there is a colour code diagram out there, have you seen it?

[@efil4kizum]

8K6 ??

[@hrcia6123]

I change the vacuum, VSV and EGR valve and it went away the check engine light

[@LAactor]

Tell that other KZbinr it's doorknob and not door nail

[@kaimcbride1553]

Check your Shakespeare, it is doornail.

[@LAactor]

SHUN THE NON-BELIEVERS! But it's true. If they didn't see it on camera then it has to be not true.. of course. 🤣🤣🤣

[@rayonwilliamssportsandfun2106]

Cat 🐈

[@LAactor]

#MEOW

[@LAactor]

Thank goodness that "first" guy is sleeping right now.

[@efil4kizum]

@@LAactor lmao

[@billsimpson604]

Those were the days when they still used vacuum lines to control pollution components. Today it is all electronic computer controlled, and way more complex. Of course, the government is trying to make ICE cars & trucks so incredibly complex, that they become rolling nightmares which will cost thousands of dollars to repair at dealers, so as to force people away from ICE vehicles, and into pure electric cars & trucks. Be aware that several studies have found that electricity demand from the coming AI computer server center boom, combined with the additional electricity demand from charging millions of electric cars, will require trillions of dollars in utility grid upgrading. So you will soon be paying more for electricity - a lot more. All while the USA is exporting supertankers of crude oil to foreign countries, along with shipload after shipload of liquefied natural gas. You think burning all that fuel abroad pollutes the air? Maybe since the billionaires who control that industry make enormous political contributions, it's okay. The more oil and gas we export, the faster it runs out here. Ever think about that?

[@LAactor]

And the irony is when it's a g0v vehicle all the population control is disabled/deleted in them immediately upon delivery

[@efil4kizum]

1996 Taco!!

[@durango8882]

A real beauty Tacoma Petr💥

[@kenhenry297]

Great video. Those parts are getting more challenging to find, I did check my local dealer in the Atlanta area and they still carry it.

[@dk7863]

🙂

[@jimv1484]

Yes I enjoyed this video. I have zero confidence that any local shop in my area could carry out this type of diagnosis. We need to somehow duplicate or clone you and ship you all around the country so everyone can have good running Toyota's!

[@sonofliberty92]

Love your videos Petr!