The Plaza Accords were a complete failure at their twin objectives of increasing US exports to Japan and decreasing Japanese exports to the US, neither of which happened.
They did trigger a wave of Japanese overseas investment and Japan's own asset bubble, leading to the Lost Decade when it burst, but these were hardly planned effects.
They did trigger a wave of Japanese overseas investment and Japan's own asset bubble, leading to the Lost Decade when it burst, but these were hardly planned effects.