Secondary air injection pump nightmare: 2005 4 Runner V8

sweetrvr

New member
My new (to me) 2005 V8 has several codes related (from what I understand) to a air injection pump related to emission control on startup.

This does not affect performance at all, but, from what I'm told, will put it into "limp mode" when it fails. The price quoted from the dealership: $2800

Apparently an aftermarket bypass circumvents the pump completely at around $200.

This vehicle has been a major disaster, no doubt.


My question: If I install the bypass, will it still pass emissions?

Thanks
 
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The bypass kits will not affect the emmisions testing.
The AIP system only works for 20 secs or so on a cold startup.
If you bring a warm truck to emiisions testing they will never know the difference.
 
I have a 08 tundra 5.7 and they went out on it at 30k and while it was at the dealership getting fixed I received a notice that my warranty will be extended to 150k on this problem. Why have they not done that on the 4.7 if it's obviously a problem?
 
I have a 08 tundra 5.7 and they went out on it at 30k and while it was at the dealership getting fixed I received a notice that my warranty will be extended to 150k on this problem. Why have they not done that on the 4.7 if it's obviously a problem?

There's a thread some where on here where I and a few other members discussed that Toyota SHOULD cover the 4Runner and Land Cruisers under their warranty enhancement (which covers only the Tundras and Sequoias equipped with the 2UZ-FE [4.7L V8] and 3UR-FE [5.7L V8] engines) based on the very similar design of the Secondary Air Pump system and how they seem to fail across the board in similar fashion.
 
There's a thread some where on here where I and a few other members discussed that Toyota SHOULD cover the 4Runner and Land Cruisers under their warranty enhancement (which covers only the Tundras and Sequoias equipped with the 2UZ-FE [4.7L V8] and 3UR-FE [5.7L V8] engines) based on the very similar design of the Secondary Air Pump system and how they seem to fail across the board in similar fashion.

Yea seen that. Worries me a little on my wife's 08 GX470 78k miles without any warranty left on it.
 
thanks..

..much appreciated. I'm definitely going to put in the bypass.

I've driven the vehicle probably 20 miles since I've bought it. So far the transfer case has had to be replaced, the heater doesn't work and now the injection pump. I'm in over $4K and it's picked up the groceries once.

What a joke!
 
..much appreciated. I'm definitely going to put in the bypass.

I've driven the vehicle probably 20 miles since I've bought it. So far the transfer case has had to be replaced, the heater doesn't work and now the injection pump. I'm in over $4K and it's picked up the groceries once.

What a joke!

Uhm, what did the previous owners do to that thing??!!! These don't have issue's with things going out constantly. Got yourself either a lemon, or the previous owners really messed some shit up and hid it from you.
 
Please.. Trust me.. save your self alot of frustration and get the kit from slyfox. 5 minute install and problem solved.

Look up my thread on it.
 
Sorry to hear you got a lemon. Just curious, what was wrong with the transfer case? Never heard of anyone needing to replace the entire TC before, just the actuator, unless they beat the hell out of it off-roading or something
 
I realize I’m late to the game here, but could someone be kind enough to post an actual link to the SAI pump bypass kit? I found something made by Hewitt in a web search? Is that it or just a competitor? Thanks guys
 
I realize I’m late to the game here, but could someone be kind enough to post an actual link to the SAI pump bypass kit? I found something made by Hewitt in a web search? Is that it or just a competitor? Thanks guys

I had this issue a few years ago and you are going to want to email the person directly.
From their visitor page:
Folks.....Email me at [email protected] if you have questions. Hard for me to follow "visitor messages" in here as they dont go to my inbox.

Also to answer ThatRed4thGen, I have 06 and it works fine. I don't know what the Hewitt is but I (and many others) had success with this one. It is not worth seeking out a camparison for.
 
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I had this issue a few years ago and you are going to want to email the person directly.
From their visitor page:


Also to answer ThatRed4thGen, I have 06 and it works fine. I don't know what the Hewitt is but I (and many others) had success with this one. It is not worth seeking out a camparison for.
This is the only bypass kit I've ever seen.

Secondary Air Bypass Kit: Gen 2 (3 Valve) | Hewitt Technologies

Sent from my SM-G998U using Tapatalk
 
I had this issue a few years ago and you are going to want to email the person directly.
From their visitor page:


Also to answer ThatRed4thGen, I have 06 and it works fine. I don't know what the Hewitt is but I (and many others) had success with this one. It is not worth seeking out a camparison for.
Do you have a link cause I can't find what you're talking about.

Sent from my SM-G998U using Tapatalk
 
Do you have a link cause I can't find what you're talking about.

Sent from my SM-G998U using Tapatalk

A guy who is a member here sells a bypass kit that works great and for a lot less money than the Hewitt kit, he's the same guy the above member is referring to, click on the following name and it will take you to his profile page he has a comment/reply there in the visitor section with his email address..... [MENTION=8828]slyfox75[/MENTION]
 
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Hey guys!
Im here:)
I thought I had ordering info in my signature....I'll have to go see what happened to it.
I sell them direct: email me at jeffcolemaps at gmail or search ebay for slyfox75. Coming to me at email saves you shipping and tax. Up to you.

-Jeff
 
Help

Please.. Trust me.. save your self alot of frustration and get the kit from slyfox. 5 minute install and problem solved.

Look up my thread on it.

Where do I find this slyfox bypass kit. I have a 08 Toyota 4 runner, can someone post a link. I'm new to this forum. Thank you
 
Where do I find this slyfox bypass kit. I have a 08 Toyota 4 runner, can someone post a link. I'm new to this forum. Thank you

Send Jeff/ [MENTION=8828]slyfox75[/MENTION] an email at the address below for questions and more info, I have "mentioned" him in this post so he will be notified and should see this post.


Slyfox75 AIP/SAIS bypass kit. Bypass = $49, Stainless Blockoff Plates $28(pair) email to jeffcolemaps at gmail for more info or questions. -jeff
 
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