Thef00t

<Heavy Sigh> alas, no.... after my first reply, I started receiving P0171 and P2198 codes along with the original P0761. Lean on bank one, upstream O² sensor. Pulled the intakes and cleaned carbon build-up, hoses,and checked for vacuum leaks. After getting it all back together, no more P0171 codes...awesome, right? 3 days later P0171 and the O² codes return. I disconnected the cold start injector and my economy jumped 10mpg. I have a cracked techstream and all the calibration update files, but I can't figure out how to initialize the Wizard without access to TIS(with a degree in computer science). The car is 16 years old and I should not have to pay for access to repair (or brick) my own property. At this point, I'm not sure if the P0761 is the transmission issue OR if P0761 is a result of the limp-mode.

AnaJanak

Hello, I have Lexus IS 250 from 2006 year with automatic transmission and I have codes P2757 and C1201. I changed the solenoid, oil and filter for the transmission.

Are these codes connected with the ecm and tcm, should I buy knew computer or the problem is with transmission? Has anyone solved this problem?

Stathasman

I sent mine off last Monday and had a very quick turn around. I got it back Monday the following week and I am back on the road today.
SIA Electronics for the win!