Powertrain, generic (extended)

P2694 Cylinder 9 Injector Data Incompatible

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P2694 would flag bad or missing correction data for the injector in cylinder 9 and therefore only fits engines with nine or more cylinders, in road vehicles essentially V10s. No manufacturer documents this code publicly. GM's diesel tables end at P2693 for eight cylinders, and Ford's 2023 diesel summary covers the same eight codes; neither lists a cylinder 9 entry. The logic would follow theirs: a missing, out-of-range or checksum-failing code for that injector sets the fault, as CARB demands for coded injectors from 2015 on. If P2694 shows up on an engine with eight cylinders or fewer, suspect a scan tool decoding error or wrong software rather than an injector.

Likely causes

Cylinder 9 injector code not programmed (ten-cylinder engines)
Scan tool decoding error on engines without a ninth cylinder
Controller software for a different engine

Symptoms

  • Check engine light on
  • Usually no noticeable symptoms

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–300
Time0.3–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

fuel injector cyl9control module

Related codes

P2693P2695P2696P0209P02F6

References: law.cornell.edu, gsi.ext.gm.com, fordservicecontent.com.