Volvo S40 2004–2006 — technical service bulletin
Bulletin 2872 · NHTSA communication 10022340 · issued May 7, 2007
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2006
model years
5
vehicle entries
Official summary
Dtc ecm - 130a mass air flow sensor, faulty signal, dtc ecm - 250a long term fuel trim, lower limit, in limited adaptation areas. *kb
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.