28231462 — Frequently Asked Questions
Verified answers about the Delphi 28231462 1.2 TDI (CFWA) Common Rail Injector (VW Polo / Skoda Fabia-Roomster / Seat Ibiza).
What is Delphi injector 28231462?
A Delphi solenoid common-rail diesel injector for the VW 1.2 TDI (CFWA) engine. VW OE 03P130277.
Which vehicles use 28231462?
VW Polo V, Skoda Fabia II/Roomster and Seat Ibiza with the 1.2 TDI (CFWA) engine, roughly 2009-2015.
Is it solenoid or piezo?
It is a Delphi solenoid common-rail injector.
Does 28231462 need coding?
Yes - convert and write the 20-character IMA code (adaptation channel 10) with VAG ODIS/VCDS when fitting.
What is the OE part number?
VW 03P130277 references Delphi 28231462.
Can I mix it with aftermarket injectors?
It is not recommended - the 1.2 TDI runs best with a matched, correctly-coded set.
What are the symptoms of failure?
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my 1.2 TDI run rough?
A worn or leaking injector unbalances fuelling; read live back-leakage data and bench-test the weak cylinder.
What causes these injectors to fail?
Poor fuel filtration, contamination and back-leakage wear - fix the cause first.
Does a remanufactured 28231462 perform like new?
A properly remanufactured injector is bench-tested and recalibrated to the Delphi plan, then IMA-coded on fitment.