01-12-2015, 02:39 AM
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#1
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Junior Member
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Join Date: Jan 2015
Location: CO
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Junior Member
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Secondary air injection pump nightmare: 2005 4 Runner V8
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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01-12-2015, 12:09 PM
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#2
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Join Date: Mar 2006
Location: Aledo, TX
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Quote:
Originally Posted by sweetrvr
.....
My question: If I install the bypass, will it still pass emissions?
Thanks
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As far as my knowledge goes (based on reading about this bypass): yes, it will pass emissions.
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2013 Silver Trail (with KDSS)-Nitto TG-G2, Bilstein 5100, Custom lift: front 2.1", rear 1.5" (lift info: [URL=https://www.toyota-4runner.org/2938235-post744.html[/URL] thread #744)
1995 SR5 4x4, 1996 SR5 4x4, 2005 SR5 V8 4x4- All Sold, but not forgotten!
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01-12-2015, 12:23 PM
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#3
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Join Date: Aug 2006
Location: Natchitoches, LA
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Join Date: Aug 2006
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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.
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01-12-2015, 01:25 PM
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#4
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Join Date: Dec 2014
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Age: 43
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Join Date: Dec 2014
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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?
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01-12-2015, 06:05 PM
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#5
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Quote:
Originally Posted by Link12
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?
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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.
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01-12-2015, 06:37 PM
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#6
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Quote:
Originally Posted by BlackWorksInc
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.
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Yea seen that. Worries me a little on my wife's 08 GX470 78k miles without any warranty left on it.
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01-12-2015, 07:07 PM
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#7
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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!
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01-12-2015, 07:10 PM
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#8
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Join Date: Nov 2013
Location: Traverse City, Michigan
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Senior Member
Join Date: Nov 2013
Location: Traverse City, Michigan
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Quote:
Originally Posted by sweetrvr
..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!
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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.
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2005 Toyota 4Runner, Sport Edition, V8, K&N filter, Doug Thorley headers, custom dual exhaust, Bilstein 5100 W/ Tacoma TRD coils in front, FJ Cruiser coils, Daystar 1.5" spacer W/ Doetsch Tech 8000 10" shocks in rear, 2.5" 4crawler Body Lift, removed Sway-Bars, removed mud flaps, removed running boards, chopped body mount, 315/70-R17 Hankook Dynapro MT
Build thread: http://www.toyota-4runner.org/4th-ge...ld-thread.html
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01-12-2015, 08:05 PM
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#9
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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.
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01-14-2015, 12:34 AM
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#10
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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
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03-28-2022, 04:54 PM
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#11
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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
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03-28-2022, 06:12 PM
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#12
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Quote:
Originally Posted by Billynath1988
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.
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x2!!!
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03-28-2022, 06:55 PM
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#13
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Does this work for 2006+ as well? How does it compare to the Hewitt?
Sent from my SM-G998U using Tapatalk
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03-28-2022, 07:30 PM
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#14
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Quote:
Originally Posted by Dry-fly
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
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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:
Quote:
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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.
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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.
Last edited by ctduncan; 03-28-2022 at 07:37 PM.
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03-28-2022, 09:06 PM
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#15
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Quote:
Originally Posted by ctduncan
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.
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This is the only bypass kit I've ever seen.
Secondary Air Bypass Kit: Gen 2 (3 Valve) | Hewitt Technologies
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