GPDC Injector Problems – Symptoms, Causes & Fixes

Engine: GPDC 1 compatible injectors From £80

Common Injector Failures on the GPDC

The GPDC 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 GPDC include models from Citroen, Fiat, Ford, Mazda. 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 GPDC 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

GPDC Injector Replacement Cost

Parts (per injector)

£80–£80

Labour

£150–£400

Total (per injector)

£230–£480

Full replacement cost guide

Compatible Injectors for the GPDC1 found

0445110239Bosch

£80.00

Most Common Injector Part Numbers for GPDC Engine

0445110239Bosch

£80.001 vehicle

Related Cross Reference Numbers for GPDC

0445110239 0445110282 0986435122 1980H2

Vehicles Using the GPDC Engine

Citroen Xsara PicassoGPDC

Peugeot 207GPDC

Related Engine Codes

9HW 9HX GPDA HHDA HHDB HHJC

Frequently Asked Questions

What are common injector problems on the GPDC engine?

The GPDC 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 GPDC engine?

A remanufactured injector for the GPDC engine typically costs £80–£80 per injector. Labour adds £150–£400 depending on accessibility. We found 1 compatible injectors for this engine.

Which vehicles use the GPDC engine?

The GPDC engine is found in vehicles from Citroen, Fiat, Ford, Mazda. Common models include Citroen Berlingo, Citroen C3, Citroen C4, Citroen Dispatch, Citroen Xsara Picasso.

How do I test the injectors on a GPDC 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

Need a Replacement GPDC Injector?

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

View All Injectors Replacement Cost Guide Call 020 3355 6581