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[countrywoman]

Live data says engine running lean, I know I can smell it. Bank1 and 2 say 128 when cold and 134 when hot what ever that is. Says rich if I rev it, no intake leaks I could find, idle speed spot on , temp gauge matches scanner and no exhaust leaks. Any ideas?

[TheBoy]

If it's a 2.5/3.0 ECU - I seem to recall yours is, the LTFT are an 8 bit integer for each bank, so that's a figure of 0-255, with 127 being the mid-point.  So the amount either side of 127 it is, that is how much it's adjusting trim.

Air leaks, duff MAF, knackered exhaust, knackered O2 sensors.

As a rule, if the banks are varying, it's likely to be bank specific on the fault, such as bank specific sensor, or leak that side. If both trim similarity amounts, more likely to something common.