Air Injection Pump....
- Thread starter Whiplash Willy
- Start date
harper7
Senior Member
Blame CARB for that! see *4 in the pdf compared to what the EPA requires.
Ya , but they did get a better fuel pump control computer and they are greener!!
NEW FEATURES – 2013 ENGINE
Fuel Pump Control
By adopting a fuel pump control computer that controls the pump driving voltage in three steps according
to the necessary fuel quantity, noise reduction and life extension of the fuel pump have been achieved.
By adopting a liner type fuel pump control computer with PWM control, size and weight have been
reduced by comparing to conventional register-switching type computers and fuel efficiency has been
improved by suppressing the consumption electric power.
The fuel pump control computer receives the three steps of fuel pump with filter assembly operation
request signals (duty signals) from the ECM and operates the fuel pump with filter assembly.
In addition to when the engine is stopped, the fuel pump with filter assembly is stopped when the airbags
are deployed to reduce fuel leakage to minimum.
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You are correct Toyota calls it ECM, I am so used to calling it the Powertrain Control Module.
chmura
New member
My 2011 M3 had an air injection system. But it looked more thought out than Toyotas system. Few M3 guys had the air injection system coded off (ECU coding). They turned it off not because of reliability reasons but because when starting the M3 cold it was loud and rough as hell. That's one thing I loved about the M3. Loud cold starts.
Maybe something similar can be done to the 4runner? Maybe we can turn it off with the techstream?
Maybe something similar can be done to the 4runner? Maybe we can turn it off with the techstream?
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Whiplash Willy
New member
Well, from looking at my emissions sticker under the hood:
It looks like my 2013 4nr "Conforms to the regulations for 2013MY" and meets the ULEV II standards for the US and Cali. Even though I bought it in Oregon, it meets Cali's standards...
I don't understand why all of a sudden Toyota decided to make the 1GR-FE meet Cali's emission standards for the 2013MY, since the engine hasn't changed sine 2010, but it is kind of annoying that they did!
I am not sure about removing all of that AIP stuff, but if it does fail, there is a module you can wire in, tricking your ECU into thinking that it does still work, as a less expensive option to replacing the broken parts, just for them to fail again....but that is just more junk you have to put in your 4nr...
Air Induction Pump Bypass Module - AIP Valve Bypass
The Bypass Module is made for Tundras, but the guy said it would work for our 4nrs as well. Also, apparently if your pump fails, you can buy the pump for a S10 pickup, as it is exactly the same, except for the electrical plug. It cost about $150, instead of $600.
It looks like my 2013 4nr "Conforms to the regulations for 2013MY" and meets the ULEV II standards for the US and Cali. Even though I bought it in Oregon, it meets Cali's standards...
I don't understand why all of a sudden Toyota decided to make the 1GR-FE meet Cali's emission standards for the 2013MY, since the engine hasn't changed sine 2010, but it is kind of annoying that they did!
I am not sure about removing all of that AIP stuff, but if it does fail, there is a module you can wire in, tricking your ECU into thinking that it does still work, as a less expensive option to replacing the broken parts, just for them to fail again....but that is just more junk you have to put in your 4nr...
Air Induction Pump Bypass Module - AIP Valve Bypass
The Bypass Module is made for Tundras, but the guy said it would work for our 4nrs as well. Also, apparently if your pump fails, you can buy the pump for a S10 pickup, as it is exactly the same, except for the electrical plug. It cost about $150, instead of $600.
Whiplash Willy
New member
I found a PDF on the new features of the 1GR-FE for the 2013 FJ cruiser. I am sure it all applies to us as well. It also talks a bit about the Air Injection System.
http://www.fjcruiserforums.com/forums/attachments/general-discussion/61414d1345676280-2013-fj-outline-new-features-engine.pdf
http://www.fjcruiserforums.com/forums/attachments/general-discussion/61414d1345676280-2013-fj-outline-new-features-engine.pdf
1engineer
Moderator
This is your thread. Read post #21. Same thing.
DeepSea
New member
Resurrecting this thread because mine just went bad with only 15,750 on the odometer. Three lights lit up on dash: CE, TRAC and Crawl as well as 4R in limp mode. $1100 for parts/labor if not under warranty. Technician said failure caused from excess moisture build-up in it. I haven't been forging any rivers lately but we did have heavy rains the day before it died. Bad location design by Toyota.
1996_Valencia_Owen
Banned
No way to mod this thing to improve it, or remove it and not get CELs still, right?
wfo9
New member
Nope.... According to some recent info. you can't even do rear 02 simulators on the air injection models. It will throw CELs due to some checks they do to verify it is there.
Such garbage for no good reason.
I was thinking hard about getting a 5th gen since the 6th has been so delayed, rented one this week to try it out, popped the hood to really check things out from a maintenance standpoint and found the octopus that is the air injector...what a terrible afterthought...back to waiting for a 6th gen and hoping my 4th lasts that long....
Friggin Idiot
Senior Member
You can't remove it... but you can remove that filter that degrades and gets sucked into the pump.
Secondary Air Pump Mod Validity
Secondary Air Pump Mod Validity
canadian bum
New member
Anyone install this? GenII Secondary Air Injection System Bypass Kit
