Recent content by rxaaron

I thought I had this problem behind me after replacing a post-cat O2 sensor and not having any issues for months. DTC code back this morning. I no longer think there's any correlation with moisture or humidity- the cabin/under dash area is bone dry. See the freeze frame data for those interested:

What wires are you referring to? The problem with removing the kit is it has the block off plates installed which aren't the easiest to get to. Likely there's an underlying problem with the SAIS system which is the reason the previous owner installed the bypass. Removing everything would just...

Pictured is where the spade connector is tied into the starter relay. I don't really understand what you mean by jumping the MAF wires. Reading the service manual, does the engine have to be under a "load" condition for P0101 to trigger? That may make it difficult to trigger by wiggling the...

My kit looks like this:

Yes the O2 sensors confirmed the A/F in this case then. I'm fairly certain theres nothing in the air intake as I've had most of that apart since having this problem (new filter, MAF, and cleaned throttle body). I don't have any freeze frame data. I'll have to wait for the CEL to come back on...

I did the test this morning based on your tutorial from another thread. How do you confirm with secodary o2 sensor data? The a/f sensors seem good from my understanding so far: Lamda 0.883,0.883 when running +12.5%, 1.116,1.127 when running -12.5%. Those numbers were very similar to yours...

I'm going to replace the pre-cat air/fuel sensors next week and dump some injector cleaner in the gas.

My truck has the gen 1 kit that’s only $150. It has the block plates installed I’m pretty sure and I don’t know right off how to take those out.

Factory service manual? I have access to what’s posted on charm.li and have tech stream on a laptop.

I don’t know the full vehicle history. It’s possible part of the SAIS failed and that is why the bypass kit was installed.

What do you mean?

I’m hoping for some assistance with a reoccurring issue with my 07 LX470. I bought the truck from an individual this May. Ever since I’ve been having sporadic problems with a dtc code, P0101, “mass or volume air flow sensor ‘A’ circuit range/performance.” This only happens about every 500...