Secondary Air Injection Pump Failure on V8's! Important!
- Thread starter Billynath1988
- Start date
stopthefury
New member
I have a BRAND NEW Rutech plug and play kit for sale (no block off plates) for $150 shipped!!
inscarguy
Member
I really can't understand why most are so resistant to change the airpump. Its not that bad of a job.
I got the labor, starter, airpump, rad hoses, gaskets, fluid and any misc items that came up for under 700.00.
Now i never have to worry again or have to deal with extra wiring.
I got the labor, starter, airpump, rad hoses, gaskets, fluid and any misc items that came up for under 700.00.
Now i never have to worry again or have to deal with extra wiring.
Well let’s see
~$50 bypass, 1 wire and 10 mins to be done.
Or
$700 an entire day for most people AND have same system that failed you once already.
THATS why we all bypass.
Sounds like you replaced the pump. That is typically one of 2-3 failure points within the system. Hopefully you cleaned the ASVs and other components as they clog with crap and eventually fail.
It was smart to replace the starter while you were in there for sure.
~$50 bypass, 1 wire and 10 mins to be done.
Or
$700 an entire day for most people AND have same system that failed you once already.
THATS why we all bypass.
Sounds like you replaced the pump. That is typically one of 2-3 failure points within the system. Hopefully you cleaned the ASVs and other components as they clog with crap and eventually fail.
It was smart to replace the starter while you were in there for sure.
hewitt-tech
New member
The Rutech and other bypasses will cause a P011B Temperature Correlation code on the 08 and newer vehicles. There was a change in how the computer does this test starting on the 08 model year vehicles. We have a specifically designed bypass kit for the 08 and newer vehicles for this reason.
We are alse getting ready to release our Next Gen units that will cover all the 4.0L engines up to the current model years. They operate completely different than the current units and are completely plug and play with no need for a connection to the MAF, IAT or the starter relay. They essentially replace the Air Injection Control Driver and connect to the ECM inputs there and of the air switching valves. If you add one of our pressure sensors to the kit for a 4.0L or two for a 5.7L you can completely remove every component of the system.
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Bedstraps
New member
Happy Customer
I installed my SlyFox bypass last night. 15 minutes. Stopped the screaming shop vac sound. I'm so happy.
For anyone else considering this or wondering if they have the same problem, My car engine "made the awful noise" whenever it was cold. Cold is relative in my case. It would do it in the summer and winter whenever it had been sitting a while.
I installed my SlyFox bypass last night. 15 minutes. Stopped the screaming shop vac sound. I'm so happy.
For anyone else considering this or wondering if they have the same problem, My car engine "made the awful noise" whenever it was cold. Cold is relative in my case. It would do it in the summer and winter whenever it had been sitting a while.
Plates now available.
Forum.......wanted folks with V8s to know I now sell the blockoff plates(4.7 and 4.6/5.7 if you have another platform in your arsenal). Another source used to sell the plates individually so I sent many of you that direction to help you get the parts you needed. That source has since decided to stop selling the plates individually. For those that want to save a little money and still fix your system, the plates are $40 for the pair. The bypass is still $48. $88 complete kit. Most don't need plates but some want them anyway for complete solution. If you have Tundra, Seq, LX, GX and obviously 4R, just let me know yr /model and I can get you setup. 2005-2012 V8s.
-Slyfox
Forum.......wanted folks with V8s to know I now sell the blockoff plates(4.7 and 4.6/5.7 if you have another platform in your arsenal). Another source used to sell the plates individually so I sent many of you that direction to help you get the parts you needed. That source has since decided to stop selling the plates individually. For those that want to save a little money and still fix your system, the plates are $40 for the pair. The bypass is still $48. $88 complete kit. Most don't need plates but some want them anyway for complete solution. If you have Tundra, Seq, LX, GX and obviously 4R, just let me know yr /model and I can get you setup. 2005-2012 V8s.
-Slyfox
AntleredRuin
New member
This may have been mentioned somewhere here in this thread but it's 26 pages long now, so I may have missed it.
I'm going to be inspecting a 2005 Sequoia (same 4.7 V8) in Houston, TX in the next few hours; hopefully to take it home.
To my knowledge, the Sequoia doesn't have this issue, but I guess I'll find out.
I keep seeing that this is an 'offroad' mod only, as it messes with the federal emissions equipment. That being said, has anyone installed one in Houston, or TX at least, and passed inspection? Obviously I'd make it look as clean as possible with a wire loom, etc.
I'm going to be inspecting a 2005 Sequoia (same 4.7 V8) in Houston, TX in the next few hours; hopefully to take it home.
To my knowledge, the Sequoia doesn't have this issue, but I guess I'll find out.
I keep seeing that this is an 'offroad' mod only, as it messes with the federal emissions equipment. That being said, has anyone installed one in Houston, or TX at least, and passed inspection? Obviously I'd make it look as clean as possible with a wire loom, etc.
AntleredRuin
New member
Neat, thanks! Fingers crossed!
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AntleredRuin
New member
Ok, checked it out and it overall looked good, but when the engine was shut off after the test drive, there was a pretty loud hissing sound, seemingly coming from the basic location were the air pump is. Lasted about 10 seconds or so.
I've seen on the newer Toyota engines that this is normal (moisture purging from evap) but not on the VVT 4.7. Is this the start of the air pump issue?
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I've seen on the newer Toyota engines that this is normal (moisture purging from evap) but not on the VVT 4.7. Is this the start of the air pump issue?
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You are correct, the new units 2013+ run the AIP pump after shutoff to help remove any water that could have splashed into the pump while driving.(this is Toyotas attempt to prevent issues.....we will see over time if it works)
I'm not sure what you heard......my GUESS......is your were running the AC and when you killed the engine you heard refrigerant "moving" in the system as the high side and low side equalized once the compressor was off.....just my hunch. Nothing else I know of would have made a noise like that.
I'm not sure what you heard......my GUESS......is your were running the AC and when you killed the engine you heard refrigerant "moving" in the system as the high side and low side equalized once the compressor was off.....just my hunch. Nothing else I know of would have made a noise like that.
AntleredRuin
New member
Yup, AC was on full blast. Nice and cold. That makes sense to me, thanks!
Thanks for the help, you're definitely getting my business if I ever need That bypass
Sent from my VS986 using Tapatalk
Thanks for the help, you're definitely getting my business if I ever need That bypass
Sent from my VS986 using Tapatalk
phqduphead
New member
Anyone have issues getting smoged after installing the bypass?
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Sent from my iPhone using Tapatalk
The bypass will not affect smog testing. An unmodified truck will be warm when it gets to the smog test station. The AIP system only works on cold engines.....so either way you're testing a warm engine. No codes show up in ECU or elsewhere either. Unless someone gets under your hood and starts looking for components they will have no way of knowing. I have yet to hear of someone having this issue.
IF......you are REALLY paranoid......you can have a bypass......start truck, let it warm up. Remove the bypass, bring warm truck to station.....(the bypass will be in your garage and you have no need for it as the engine is warm) and get the test done. Come home, reinstall bypass for tomorrow morning first start.
IF......you are REALLY paranoid......you can have a bypass......start truck, let it warm up. Remove the bypass, bring warm truck to station.....(the bypass will be in your garage and you have no need for it as the engine is warm) and get the test done. Come home, reinstall bypass for tomorrow morning first start.
phqduphead
New member
I sold my 4Runner and the machine is not connecting to the odb port. So has nothing to do with the bypass. I think a connector in the odb harness is bent or something, fuse is good. Of course the new owner is having issues with this and I’m out of town for work.
Thanks for the response.
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Thanks for the response.
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I'm up in the PNW and had to install a bypass last summer at about 165k. I am looking at upgrading my 2005 to a new 2020. I'm assuming with the bypass installed, taking my 4Runner in to the dealer is a hard no. I swore I read something about someone selling their vehicle to a dealer after the bypass install, but I can't find it. Any info would be helpful. Thanks.
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Not sure how to answer the dealer thing. My first thought is list vehicle on here and be open with potential buyers that the bypass has been done and that its a good thing. If on another selling site(craigslist type), I would again be forthcoming about it and have them research it if they are not comfortable(send them here).
Other thought, is a 2005 4Runner is going straight to auction site I'd assume; unless someone that works at the dealership wants it. It will never be on their lot, they aren't even going to care about a bypass I wouldn't think.
Other thought, is a 2005 4Runner is going straight to auction site I'd assume; unless someone that works at the dealership wants it. It will never be on their lot, they aren't even going to care about a bypass I wouldn't think.
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