I got the following codes:
- P1415 code (P1415 Secondary Air Injection System – Malfunction Bank 2 RH)
- P0174 (System too lean (bank 2)
- P0150 O2 sensor circuit malfunction (bank 2, sensor 1)


I did some research about the codes on this and other LR forums and the RAVE. This seems like a pretty common problem so I thought I would share my remedy.
I isolated the problem to the bank2 SAI valve. I could not identify any vacuum leaks or clogged hoses. What I did find out was the sound the bank 1 SAI valve makes when it operates properly. I removed the bank2 valve and cleaned it out with a liberal amount of parts cleaner then reinstalled it. Applying vacuum to the newly cleaner valve (I wouldn't call it clean) I got the noise that the good valve was giving me. Apparently it was just a stuck valve. I cleared the codes and only the P0150 has returned...got a new O2 sensor on order.

 

Nice. Hope it holds for you. Glad to hear you got the valve off without breaking any bolts.

 

Got same error with you, use Chinese JLR Mongoose v138 clear trouble code, but trouble returned yesterday, now follow your instruction, fix it. You are best, thank you!

 

04duxlr: the bolts were actually pretty easy. I didnt even need any liquid wrench like I did on the O2 sensor. If I had gotten to the valve sooner I might not have to change the O2 sensor.