P2319 code meaning
Ignition Coil G Primary Control Circuit High
Powertrain system Generic code P23xx codes Check engine light
What P2319 means
P2319 sets when the coil G control line, belonging to cylinder 7 of a V8 or larger engine, shows a short to voltage. GM's 2019 tables include it for the LT5 Corvette V8 as a Type B code with 50 of 63 failed samples. Ford describes the protective reaction in detail: after a coil-driver fault the injector of that cylinder stays off for 30 s; on six- and eight-cylinder engines as many as two cylinders can be shut off at the same time. After the pause the injector is switched on again, and if the fault returns within about 0.1 s fuel is cut once more. Message 52455 from Ford (2024) on 6.8 and 7.3-litre trucks lists P2319 with the other codes that may point to the wrong cylinder; the real culprit is the cylinder that drops out in the power balance test without a code of its own.
P2319 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 2 hours
- Clears after repairAfter a drive cycle
Symptoms of P2319
- Check engine light on
- Cylinder 7 shut off for periods of 30 s (Ford)
- Rough running and loss of power
Common causes of P2319
- Most likelyCoil G control wire shorted to a supply line
- PossibleInternal fault in coil G
- Less likelyCode assigned to the wrong cylinder by PCM software (Ford SSM 52455)
- Less likelyEngine module output stage defective
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Ignition coilCoil driverIgnition wiring
What each part of P2319 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 3 | Area: ignition system or misfire. |
| 19 | The exact fault in that area. |
What to do next
- Note P2319 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2319
What does P2319 mean?
P2319 means "Ignition Coil G Primary Control Circuit High". P2319 sets when the coil G control line, belonging to cylinder 7 of a V8 or larger engine, shows a short to voltage. It is a generic code, so it means the same on every make.
Is it safe to drive with P2319?
Drive gently and only to a workshop. With P2319 the car can go into limp mode (reduced power) to protect itself.
Will P2319 fail an emissions test?
Yes, it can. P2319 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2319 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2319 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.