Lx570 code p2440 (2 Viewers)

[TTO5]

My 2010 Lx570 with 190k miles threw code p2440 today and went into limp mode. Code is for secondary air injection switching valve stuck open bank 1. I cleared it and it drives fine but I read that it needs 2 cold starts to re trigger. I was looking at doing the gen 2 bypass kit from Hewitt trying to decide if I want to change both pressure sensors that they offer. I spoke to Hewitt and he feels that my pressure sensors are probably ok but I'm looking to keep this truck around for several more years. Looking for advice or input on the bypass kit. Thanks.

 

[landbruiser200]

Did you resolve this issue? My 2010 with 225k on the clock just threw this same error code up.

 

[Fof5]

Did you resolve this issue? My 2010 with 225k on the clock just threw this same error code up.

My 2010 just threw this one and P0504 and P0571

 

[Catskills]

My truck had this issue today while I was towing my camper.

Was able to clear the code and it's headed to Toyota tomorrow but curious about others' experiences.

 

[a200]

My truck had this issue today while I was towing my camper.

Was able to clear the code and it's headed to Toyota tomorrow but curious about others' experiences.

How was your experience?

 

[Valgrind]

Anyone have an update on this? I just got the same P2440 code. Seems like this is the part you have to replace? Is that right?

 

[TTO5]

Anyone have an update on this? I just got the same P2440 code. Seems like this is the part you have to replace? Is that right?

View attachment 3922826

I installed the Hewitt Technologies bypass kit shortly after I made this first post. Been fine ever since and passes motor vehicle inspection

 

[Valgrind]

I installed the Hewitt Technologies bypass kit shortly after I made this first post. Been fine ever since and passes motor vehicle inspection

ah nice, that is what im thinking about doing too, now that I read some other threads.