P0100

Applies to: 2.0D / 2.2D diesel (Ford Duratorq TDCi), 2003-2009 · Confidence: Platform code set + documented field failures

Common causes

• MAF contamination from EGR soot and oil mist
• Connector fault
• MAF failure

Quick checks

• Scan access: Generic OBD-II scan tool / WDS-IDS

Typical fixes

• Clean or replace the MAF - on EGR-equipped diesels the hot film soots up and reads low, causing poor performance and smoke