Powertrain, generic (extended)

P217E Fuel Injector Group H Supply Voltage Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P217E flags the supply of injector group H as grounded, on GM's direct-injection V8 engines the injector of cylinder 8. GM lists it for the 6.2 LT4 in 2018 and in its 2016 table 16OBDG07A. With the high-side driver switched on, a current of 25 A or more means the line has found a path to ground; at 11 V or more, 10 bad samples out of 20 taken at 100 ms set the code as type A and light the MIL right away. Since the per-cylinder low-side codes P0282 and P0283 cover the return line, this code points specifically at the feed wire, the injector body or the driver. A practical check is to unplug the module and the injector and measure the feed wire to ground before suspecting the module. The engine loses cylinder 8. P217F is the high fault.

Likely causes

Cylinder 8 feed wire chafed to ground
Cylinder 8 injector shorted to its housing
Engine control module output stage faulty

Symptoms

  • Check engine lamp on immediately
  • Cylinder 8 misfire, engine shakes

Repair estimate

DifficultyHardWorkshop job
Parts and labour€100–1,500
Time1–5 h

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

Parts involved

fuel injectorinjector wiringengine control module

Related codes

P217DP217FP217BP0282P0308

References: gsi.ext.gm.com, gsi.ext.gm.com.