Ford Mustang 1997–1998 — technical service bulletin
Bulletin 12523 · NHTSA communication 6091770 · issued Mar 1, 1999
Technical service bulletin
communication type
Unknown OR Other
component
1997–1998
model years
2
vehicle entries
Official summary
Some vehicles may exhibit a check engine light illuminated accompanied with obd-ii code p0340 set in the pcm memory. *tt
Vehicles covered
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.