Darwen Diesels Blog
Our blog provides expert solutions for industry diesel injection issues and keeps you updated with news in the diesel fuel injection industry.
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What is a vacuum/tandem pump and what do they do?
March 27, 2026
What is a vacuum/tandem pump and what do they do? A tandem pump can be simply described as a low pressure fuel pump in a diesel engine which also includes a vacuum pump. It is called a tandem pump because it has two functions: the first function is to activate the vacuum pump for the
Read more…
DSLA150P1043 1.9 TDI High‑Flow Nozzles – Everything You Need to Know
February 13, 2026
If you work with 1.9 TDI engines – whether in tuning, performance builds, or injector refurbishment – you’ve likely come across the DSLA150P1043 injector nozzle. This guide breaks down exactly what it is, what “high flow” means, why tuners choose it, and which vehicles it fits. We’ll also explain the crucial differences between OEM and enlarged flow variants.
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Struggling with Injector Problems on Your 1.6 VW Caddy? Here’s What You Need to Know
December 7, 2025
If you own a VW Caddy with a 1.6 TDI engine, you might have encountered some frustrating issues—rough idle, misfires, loss of power, or even clouds of blue or black smoke trailing behind you. Sound familiar? You’re not alone.
Read more…
What is a vacuum/tandem pump and what do they do?
March 27, 2026
What is a vacuum/tandem pump and what do they do? A tandem pump can be simply described as a low pressure fuel pump in a diesel engine which also includes a vacuum pump. It is called a tandem pump because it has two functions: the first function is to activate the vacuum pump for the
Read more…
DSLA150P1043 1.9 TDI High‑Flow Nozzles – Everything You Need to Know
February 13, 2026
If you work with 1.9 TDI engines – whether in tuning, performance builds, or injector refurbishment – you’ve likely come across the DSLA150P1043 injector nozzle. This guide breaks down exactly what it is, what “high flow” means, why tuners choose it, and which vehicles it fits. We’ll also explain the crucial differences between OEM and enlarged flow variants.
Read more…
Struggling with Injector Problems on Your 1.6 VW Caddy? Here’s What You Need to Know
December 7, 2025
If you own a VW Caddy with a 1.6 TDI engine, you might have encountered some frustrating issues—rough idle, misfires, loss of power, or even clouds of blue or black smoke trailing behind you. Sound familiar? You’re not alone.
Read more…



