P2DED code meaning
Cylinder 4 Intake Valve Lift Range/Performance
Powertrain system Generic code P2Dxx codes Check engine light
What P2DED means
P2DED is the cylinder 4 member of the per-cylinder lift checks: the engine computer finds this cylinder's lift off target or slow to follow. On four-cylinder engines with hydraulic lift control the oil comes first. FCA's tech tip for the 2.4 L Tigershark MultiAir asks the technician to exclude a low oil level, a filter or viscosity outside spec, old or diluted oil and a clogged screen in the oil gallery on top of the block, which feeds the MultiAir unit, before any actuator is replaced. FCA itself stores MultiAir faults under its own P1xxx numbers; P2DED is not documented publicly by any maker. Since MultiAir throttles the intake through the valves, a sticking cylinder 4 shows up as uneven idle, misfire or weaker pull. CARB counts such lift errors as emission faults.
P2DED at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 8 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2DED
- Check engine light on
- Misfire on cylinder 4, rough idle
- Hesitation when accelerating
Common causes of P2DED
- Most likelyLow, aged, diluted or wrong-viscosity oil
- PossibleClogged oil screen in the gallery feeding the lift unit
- PossibleOil filter not meeting the maker's specification
- Less likelyWorn cylinder 4 section of the lift actuator
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Intake valve lift actuator cyl 4VVT system
What each part of P2DED means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| ED | The exact fault in that area. |
What to do next
- Note P2DED 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 P2DED
What does P2DED mean?
P2DED means "Cylinder 4 Intake Valve Lift Range/Performance". P2DED is the cylinder 4 member of the per-cylinder lift checks: the engine computer finds this cylinder's lift off target or slow to follow. It is a generic code, so it means the same on every make.
Is it safe to drive with P2DED?
Drive gently and only to a workshop. With P2DED the car can go into limp mode (reduced power) to protect itself.
Will P2DED fail an emissions test?
Yes, it can. P2DED 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 P2DED to fix?
Difficulty: hard. A typical repair takes 0.5 to 8 hours of work. This is a job for a workshop.
Will P2DED clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.