Z2JA Injector Problems – Symptoms, Causes & Fixes

Engine: Z2JA 1 compatible injectors From £90

Common Injector Failures on the Z2JA

The Z2JA engine uses high-pressure common rail diesel injection. Over time, injector nozzles wear, seals degrade, and internal components lose calibration. This leads to a range of drivability symptoms that worsen if left unaddressed. We stock 1 tested replacement injectors for this engine from Bosch.

Vehicles fitted with the Z2JA include models from Citroen, Ford, Peugeot, Vauxhall. If you are experiencing any of the symptoms below, your injectors may need testing or replacement.

Symptoms of Injector Failure

Related Fault Codes

P0201 P0202 P0203 P0204 P0263 P0266 P0269 P0087 P0089 P0300

How to Test Z2JA Injectors

Leak-off test: Connect clear hoses to the injector return lines and compare fuel volumes at idle. The injector returning the most fuel is likely worn.

Correction values: Use a scan tool to read injector correction (IMA) values. Readings beyond ±3 mg/stroke indicate wear.

Resistance check: Measure resistance across the injector connector pins with a multimeter. Compare to manufacturer specs.

Complete Testing Guide Leak-Off Test Guide

Z2JA Injector Replacement Cost

Parts (per injector)

£90–£90

Labour

£150–£400

Total (per injector)

£240–£490

Full replacement cost guide

Compatible Injectors for the Z2JA1 found

0445110955Bosch

£90.00

Most Common Injector Part Numbers for Z2JA Engine

0445110955Bosch

£90.001 vehicle

Related Cross Reference Numbers for Z2JA

0445110749 0445110954 0445110955 2191087

Vehicles Using the Z2JA Engine

Ford Transit ConnectZ2JA

Ford Transit CourierZ2JA

Related Engine Codes

A13DTC A13DTE DW10FC DW10FD YHR YHV

Frequently Asked Questions

What are common injector problems on the Z2JA engine?

The Z2JA engine commonly suffers from injector seal failure, nozzle wear causing poor spray patterns, and back-leak issues. Symptoms include rough idle, black or white exhaust smoke, hard starting, and increased fuel consumption. These issues typically appear after 100,000–150,000 miles.

How much does it cost to replace injectors on a Z2JA engine?

A remanufactured injector for the Z2JA engine typically costs £90–£90 per injector. Labour adds £150–£400 depending on accessibility. We found 1 compatible injectors for this engine.

Which vehicles use the Z2JA engine?

The Z2JA engine is found in vehicles from Citroen, Ford, Peugeot, Vauxhall. Common models include Citroen Berlingo, Citroen C3, Citroen C4, Ford Fiesta, Ford Focus.

How do I test the injectors on a Z2JA engine?

Perform a leak-off test by connecting clear hoses to each injector return line and comparing fuel volumes at idle. You can also check injector correction values with a diagnostic scan tool or measure electrical resistance with a multimeter.

Injector Compatibility Checker

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Need a Replacement Z2JA Injector?

We stock 1 tested replacement injectors for the Z2JA engine. All remanufactured, bench-tested, and supplied with a 12-month warranty.

View All Injectors Replacement Cost Guide Call 020 3355 6581