Question 1

What does an injector test report actually show?

Accepted Answer

Every Remanufactured Injector test report shows four numbers per injector: idle delivery (mg/stroke), full-load delivery (mg/stroke), back-leakage (ml/min) and a spray-pattern grade. Anything outside OEM tolerance is flagged red. The report is a single A4 PDF emailed within 48 hours of receiving your injectors — no phone-call interpretation needed.

Question 2

Do I need to send all four injectors for testing?

Accepted Answer

We recommend sending all injectors from the affected engine even if you only suspect one. Back-leakage is a relative measurement — a single injector tested in isolation cannot be compared against the others on the same engine. Testing the full set costs £80 and rules out borderline units that would otherwise come back as a workshop return weeks later.

Question 3

How should I package injectors for testing?

Accepted Answer

Wrap each injector individually in bubble wrap, keep the cylinder number marked on the side (e.g. 'Cyl 3'), and place upright in a small cardboard box with packing material. Royal Mail Special Delivery or DPD Tracked is sufficient. Our address is on the confirmation email — please do not include fuel; pump the injector dry first or bag it separately.