How do you fix p0733 1997 infiniti j30?

The P0733 code indicates an issue with the transmission gear ratio, specifically a problem with the third gear. To fix this, first check the Transmission Fluid level and condition, as low or dirty fluid can affect shifting. If the fluid is fine, inspect the transmission for any signs of wear or damage, particularly in the third gear components, and consider having the transmission control module (TCM) scanned for further diagnostics. In some cases, a simple reset of the TCM may resolve the issue, but if not, a professional inspection or rebuild may be necessary.