8HP Injector Problems – Symptoms, Causes & Fixes

Engine: 8HP 1 compatible injectors From £80

Common Injector Failures on the 8HP

The 8HP 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 8HP include models from Citroen, Ford, Peugeot. 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 8HP 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

8HP Injector Replacement Cost

Parts (per injector)

£80–£80

Labour

£150–£400

Total (per injector)

£230–£480

Full replacement cost guide

Compatible Injectors for the 8HP1 found

0445110339Bosch

£80.00

Most Common Injector Part Numbers for 8HP Engine

0445110339Bosch

£80.001 vehicle

Related Cross Reference Numbers for 8HP

0445110339 0986435172 1980EJ 9687068980

Vehicles Using the 8HP Engine

Related Engine Codes

8HR KVJA

Frequently Asked Questions

What are common injector problems on the 8HP engine?

The 8HP 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 8HP engine?

A remanufactured injector for the 8HP 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 8HP engine?

The 8HP engine is found in vehicles from Citroen, Ford, Peugeot. Common models include Citroen C3, Ford Fiesta, Peugeot 207, Peugeot 208, Peugeot 308.

How do I test the injectors on a 8HP 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 8HP Injector?

We stock 1 tested replacement injectors for the 8HP engine. All remanufactured, bench-tested, and supplied with a 12-month warranty.

View All Injectors Replacement Cost Guide Call 020 3355 6581