Lexus GX 2010+ :: Secondary Air Injection Valve Failure - Code P2440
Jul 24, 2015
Just got the dreaded p2440 code which is the secondary air injection valve failure. Not only do you get several lights on the dash, you also get limp mode with this code.
My GX is a 2011 with 46k, and even though several Toyota vehicles have had their warranty extended to 10yr 150k for this very system, Lexus has done no such thing.
The dealer was very familiar with this issue and knew it wasn't covered under any existing warranty. He said it's "around $2000" to fix because one of the valves is still under the intake manifold.
Even though I hate to "RIG" my GX, I ordered the bypass module from EBAY. It blocks the system off and tricks the ecu into thinking all is well.
For those not familiar, this system runs on cold starts for 30 seconds or so to warm up the cats, it has no other function.
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I have a P2440 code from warning light- Secondary AIR System Switching Valve A' Stuck Open. This started to appear when I took it into the dealer for other issue with transfer case whining when in 4x4. Can this code be associated with something the mechanic did , would they remove any sensors or wires, that may not have put back. Not happy. Are these trucks know for this code? Estimate cost?
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I have a 2010 GX460 with about 81000 miles on it. I recently got the above codes and after researching it I decided to take apart the air injection valves, and also the motor to see what was going on.
Luckily these parts are very easy to access on our cars. Take the engine cover and front plastic cover off. The two valve are on either side of the cylinder head, and the pump will be on the left hand side, front of the engine bay.
I ordered two new valves, and ended up just cleaning out my pump.
Here are the Part Numbers:
VALVE ASSEMBLY, AIR SWITCHING
2570138100
VALVE ASSEMBLY, AIR SWITCHING
2570238050
This is exactly what happened: [URL] ....
Here is what both of my valves looked like:
Here is what the air pump looked like:
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120K miles - love the car
CEL, skid, VSC trac and VSC off lights on - dealer said the code was p2441 Secondary Air Injection System switch stuck. Dealer said I needed to replace air injection system and that the cel would not go off until it was repaired. They completed the 120K service and when I picked it up, all the warning lights were off. I have driven it a couple of hundred miles since then and still no lights. Does that mean it could have been something else???? I love the car, but I need tires and brakes and now repair charges for a 2005 car with 120K.
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Secondary air injection system leak detected-Bank 1 & 2... 2003 miles on my car and the CEL pops on this morning. VCV bodies are being replaced tomorrow. The tech didn't fully understand what parameters to test for or what conditions would be present to set this code, I can't say that I do either... the flapper could possibly play a role in this..?
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I got 2001 vw jetta 2.0.. I keep getting check engine light,,when i scan it keep saying P0411 Secondary Air Injection System Incorrect Flow Detected. i replaced new smog air pump, and new egr valve and today i was driving car and i got check engine light, its still same code.
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2004 VR6 24v ... I had another thread about my son's car stalling after driving about 20 miles and then running good again after letting it sit for a couple of hours. Anyway I changed the Crank Position Sensor and I have been driving it work and back the last couple of days so I am starting to relax that the CPS fixed that problem. Won't be positively sure for a while as the problem took a while to occur. So far so good.
While coming to work today the car picked up the P0411 code, secondary air injection system incorrect flow. When I changed the CPS sensor i unbolted a module underneath the car by the oil filter to get better access to the CPS. I did not remove it, just unbolted it so I could push it out of the way about and inch.
After putting it all back together and driving it for several trips with no stalling this P0411 comes on. Is that module I moved the Secondary Air Pump and could I have disturbed something. I will check it when I get home. How critical is that code. I read where it works to warm a cold engine. What effect would there be driving with that code?
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My 97 E350/460ci occasionally sets trouble code 4011. It clears every time I check it with my code reader. Something about insufficient secondary air injection. The dealer ship couldn't duplicate/diagnose the problem. Maybe something with the air injection solenoids.
Otherwise, it runs fine. I did notice on the passenger side of the engine compartment a large black metal filter looking thingie with about a 3/4" outlet that doesn't have any hose on it or seem to go anywhere else. Once in a while when you start it i hear a sort of soft popping noise for a few seconds that I would associate with the air pump.
Also can't get the ABS light to go away. It's out when you start it but as soon as you get going it comes on. I flushed the fluid and replaced the rear sensor to no avail. Also tried to flush out the front tone wheels and sensors.
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It showed up yesterday and I looked it up that it's the Secondary Air Injection System Switching valve stuck open. I cleared the code but this morning I heard the pump vacuum noise, which I have never heard before but the code didn't come back on. [URL] .....
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Where the secondary air injection pump is? I'm getting P1411 & P1423 codes.
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ok i was just driving my 2004 ford f150 truck and it stopped running. I turned the key and it started back up again and then while on idle it stopped again. I took it too auto zone and it showed a code of p1237 which as far as i can see says fuel pump secondary circuit failure. does that mean i need a new fuel pump and how hard is it to replace.
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I have a beautiful 1996 Saab, 900s. Recently the check engine light came on and at Autozone they said the code was for the secondary air injection pump. I took it to a new mechanic, he checked it out and called me to say the pump itself was broken and would cost 1,000 to fix. I said that was a lot, and would think about it, and picked up my car.
Strangest thing- the check engine light is now off! Is this normal? And I just took the car in for the state inspection, it passed! I was under the impression a car without a working secondary air injection pump can't pass emissions. What is going on here??
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My 2006 W12 has been trouble free since taking delivery over a year and a half and 30K miles ago. Just broke 60K total miles over the weekend and the engine light came on. I have pasted the scan below. I cleared the codes and drove about 500 miles before the MIL reappeared. I have read this thread: [URL] ....
My first question is: Is there any harm in continuing to drive it?
I have visually inspected the secondary air injection system hoses and can't find anything glaring (no kinks, leaks, disconnections). I am open to taking the car to the dealership but I have low confidence in their diagnostic capabilities. I am fine with them doing work once we know what is wrong but I want to tell them what to do (replace a bunch of hoses for example). How to proceed?
Address 01: Engine Labels: 07C-906-018-BAP1.lbl
Part No SW: 07C 906 018 AJ HW: 000 000 000 00
Component: D1-6.0L-AT-LEV2 G 6722
Revision: --H01--- Serial number: VWZ3Z0E5400307
Coding: 0000173
[Code] ....
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Finally getting to my header and exhaust install.
I plan on removing the secondary air injection as I have no provision for it. Will this throw a CEL?
Looks like it goes into a rubber hose and comes around to the top of the intake manifold.
What is the best/cleanest way to cap this off?
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Chassis Type: 9M - VW Jetta IV
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75 76
Address 01: Engine Labels: 06A-906-032-AWP.lbl
Part No: 06A 906 032 RN
Component: 1.8L R4/5VT G 0001
Coding: 07510
Shop #: WSC 00066
3VWSE69M14M129075 VWZ7Z0D9541648
1 Fault Found:
16795 - Secondary Air Injection System: Incorrect Flow Detected
P0411 - 35-00 - -
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 56: Radio Labels: 3B7-035-1xx-56.lbl
Part No: 3B7 035 180 G
Component: RADIO 3CP 0007
Coding: 00031
Shop #: WSC 00066
1 Fault Found:
00856 - Radio Antenna
36-00 - Open Circuit
End ---------------------------------------------------------------------
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I keep throwing a P0411 - Secondary Air Injection System error. My previous pump was seized so I replaced it, and broke a few of the chintzy air hoses in the process. Now, with new pump installed and new air hoses connected, I can go about 5 days before the code comes back on.
So to recap, I have:
Replaced the air pump
Verified the new air pump functions, yepReplaced the air hoses
Verified connection of air hoses at all junctions
Checked the Secondary Air Relay for function
I have not yet checked the solenoid - unsure how to do so.
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I recently picked up a 2000 jetta vr6 for a very good price its a glx I have owned a vr6 before and done timing chains myself on it this one is a glx , I am having 5 fault engine codes on my vagcom they are cam position sensor , knock sensor, secondary injection pump, and mass air flow it ran fine 100 miles yesterday this morning the epc came on then went off and ran bad can these codes all be related or do I have to replace each sensor individually..
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I have a 2003 bmw 330xi with 136k miles that wont pass smog because the secondary air monitor wont complete. At this point im stumped and there's not check engine codes set or pending. I replaced all vacuum lines, verified the vacuum switch controlling the system works and holds pressure. Verified the valve works and even replaced it just to make sure. Air pimp works and stays on for required time. I even manually opened the valve with a vacuum pump and still nothing. Someone mentioned that a lazy O2 sensor could be the issue but all other monitors complete with no problems within 15 mins.
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I've had my 2000 V6 Passat in for service three times with Secondary Air System issues - the dealer said that the whole thing needed replacement. The indy shop identified a couple of things to repair but said total replacement was unnecessary. A secondary airs system valve has been replaced twice (same one both times). Check engine always comes on within a day - we took it to another dealer for their opinion and again. Said that I need to replace the valve (third time!).
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I have a PZEV (Partial zero emission vehicle) 2006 Focus. Recently, my car threw the check engine light. Looked at the two codes, found out it was for the secondary air system. I pulled the car apart, removed the pump, checked that the pump was indeed receiving 12v (checked with a multimeter) with ignition-on-engine-off. I couldn't feel, or hear, the pump spinning. Figuring it was the source of the problem (as opposed to a clogged hose), I replaced the relay, thinking that perhaps it was on its dying leg. That didn't work. I next replaced the pump, which also didn't work. I can't even hear or feel the new pump running with ignition-on-engine-off.
I "reset" the codes, or so I thought, by disconnecting my battery for quite a few minutes. During the first startup, the check engine light isn't on. Starting up again though later in the day, the light returns. The engine does run a bit rough when cold without the pump malfunctioning for the first few brief moments.
Is the pump supposed to be powered and running for the entire time ignition-on-engine-off (I assume so since it is receiving 12v). How loud should these guys be? I would have thought I would be able to feel the motor spinning or hear something....
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I got a code for Fuel pump secondary circuit failure, how do you fix it? 1990 Aerostar 4.0 2wd with A/T and A/C
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