P0193: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P0193 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

7 complaints filed with NHTSA mention P0193, 4 of them since 2015, across 6 different models. The component owners most often filed it under: fuel/propulsion system.

Manufacturer service bulletins that name P0193

9 technical service bulletins and manufacturer communications filed with NHTSA mention P0193, from 4 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • FORD F-150 (2018), bulletin 10143082: Some 2018 F-150 vehicles equipped with a 3.3L engine built on or before 7-May-2018 at Dearborn Assembly Plant or on or before 31-May-2018 at Kansas City Assembly Plant may exhibit an illuminated MIL and/or runs rough con…
  • FORD F-750 SD (2017), bulletin 10095233: SOME 2017 F-SUPER DUTY EQUIPPED WITH A 6.7L ENGINE MAY EXHIBIT A MIL ON WITH DTC P06A6, P0193, P02E9, P0335, P0532 AND/OR P2454. THIS MAY BE DUE TO A CONCERN WITH THE REFERENCE VOLTAGE OR SIGNAL RETURN CIRCUIT OF THE CRA…
  • FORD F-250 SD (2017), bulletin 10100045: SOME 2017 F-SUPER DUTY VEHICLES EQUIPPED WITH A 6.7L ENGINE AND BUILT ON OR BEFORE 07-FEB-17 MAY EXHIBIT A ILLUMINATED MALFUNCTION INDICATOR LAMP (MIL) ON WITH DTC P06A6, P0193, P02E9, P0335, P0532 AND/OR P2454. THIS MAY…
  • GMC YUKON XL (2014, 2015, 2016), bulletin 10114645: This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Codes P0089, P127C, P1…
  • CHEVROLET CORVETTE (2014, 2015, 2016), bulletin 10114645: This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Codes P0089, P127C, P1…
  • CADILLAC ESCALADE ESV (2015, 2016), bulletin 10114645: This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Codes P0089, P127C, P1…

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.