Vauxhall has been using many self-diagnostic systems on their vehicles since 1987. In recent times, self-diagnostic systems have been developed to cover the entire electronic network on all Vauxhall models.
This means that even the smallest repairs require utilisation of specialist diagnostic equipment. We have the latest diagnostic equipment called Tech 2. This is the same diagnostic equipment used by Vauxhall dealers.
Tech 2 plugs into the OBDII (on board diagnostics 2) port found inside the car on all GM vehicles worldwide including Vauxhall/Opel. Using this, we can check for fault codes stored within any of the car’s computer systems; check data from the car’s computers; actuate system parts to check their operation; record data for later analysis; and program systems, including remote and transponder (immobiliser) keys.
More on Diagnostics
- Engine management
- Common Rail Diesels
- CAN Bus
Diesels have come a long way since the old noisy and dirty diesels of the Eighties and Nineties. We are now on 3rd generation common rail systems which are much more efficient and cleaner. This means however that the fuel systems run under very high pressures anything up to and 2000 bar (30,000 psi). This means the only people who should work on a common rail diesel engines fuel system are fully qualified vehicle technicians.
These engines also now incorporate a diesel particulate filter (DPF) in the vehicle’s exhaust system which collects the soot created by a diesel engine’s emissions. After a certain mileage the engine management will perform a particulate filter regeneration by heating up the filter to approx 600 degrees Celsius to burn off the collected soot, this therefore prevents the filter from becoming blocked. You can tell if a vehicle has a particulate filter because the end of the exhaust will be completely clean (no black soot). Read more about Diesel Particulate Filters on the AA Website.