Infiniti QX4 1997–2000 — technical service bulletin
Bulletin ITB01025 · NHTSA communication 623166 · issued Jul 1, 2001
Technical service bulletin
communication type
Fuel System, Gasoline
component
1997–2000
model years
4
vehicle entries
Official summary
Information regarding fuel injector cleaning for vehicles with rough idle, hesitation or malfunction indicator lamp on with diagnostic trouble code p0300-p0306 stored. *yh
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.