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Need some help…Last week I received my aFe stage II and Banks Monster for my 08 Titan. It was late so I installed the CAI that night. Drove to work next day, no problems (10 miles). After work on the second day I installed the Banks. I drove about 30 miles round trip on the test drive. Towards the end of the drive, the SES came on. The next day, I reset the ECU and after a trip to work SES come back on. I get codes R0172 (system to rich bank 1) and R0175 (system to rich bank2). Followed service manual best I could with limited time. Doesn’t seem to be any leaks. What else should I look for? Also, don’t have a scanner. I enquired about the UpRev and this is the response “We can’t support 08 Titans yet. Nissan changed the ECU architecture for 08, so we have to reverse engineer it all over again”. Crap, that’s out for now! So I need an interim scanner, any recommendations on that too?