some say yes some say no who is right

no just a fuel injector. diesels that have a turbo would have a T in the engine description, eg. hdti

No

Yes you have a direct injection variable geometry turbo engine here is the spec for the bigger engines.The 2-litre HDi 138 16 valve engine develops 100 kW CEE (138 bhp DIN ) for maximum torque of 320 Nm at 2,000 rpm. The overboost function increases maximum torque to 340 Nm at 2,000rpm at full engine load.

They most certainly DO. l work at Peugeot parts. Peugeot and Citroen use the same engines. HDi stands for High Density injection. l personally have a 307 HDi 90. All HDi models have turbos.(you and l have a 2.0litre 90 bhp) The same engine is also available with 110 bhp and also more recently 136 brake horse power. They also make a 1.4 and 1.6 hdi models. Please do not listen to some of these people who say no or it should have a t in the name badge; they are talking nonsense.

yes the hdi does have a turbo fitted, the 90 is for 90 horse power

Yes it does. All PSA-Peugeot-Citroën HDi engines have turbochargers.

Very few modern diesel cars are without turbochargers. As a turbocharger is now expected, some manufacturers no longer see the need to advertise that they have them - Renault/Nissan dCi, Toyota D4-D, BMW d and Mercedes-Benz CD l versions are all turbocharged too, but do not advertise the fact.

Yes a turbo and a intercoller