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pd or not
- Thread starter mrk
- Start date
Yours is a non-pd. PD has a pump on each injector and is operated with a cam. Just a different type of injection system. Non-PD would be the opposite! Normal TDI has a variable fuel pump and PD doent, although dont remember the name for the PD one.
Briefly 
The earliest VAG TDI engines, TDI 90 and TDI 110, are non-PD. They use a conventional diesel distributor pump system driven off the toothed cambelt. Injection quantity and timing are set at the pump and each injector has a separate feed line from the pump.
The more recent VAG TDIs, including 100, 105, 115, 130, 150 and 160 BHP engines, are PD (Pumpe Duese, best translated as Pump Injector). Fuel is distributed by a low-pressure pump and common fuel rail to individual injector assemblies attached to each cylinder head. Injection quantity and timing is set at the injector. Stripped of all their complex engineering detail, the injectors are just like a stirrup pump or a syringe squirting fuel through a spray head into the cylinder. Of course, the complex engineering detail is what makes it work reliably for hundreds of thousands of miles
The injectors are driven by extra lobes on the single camshaft. These lobes are very high-lift, and even though the cam followers have rollers, they are very highly stressed and require special high-grade oil to avoid premature wear.
There was a PD TDI 90 but apparantly it was only fitted to VW Sharans.
All of these engines have their injection timing and quantity parameters finely tuned by electronic actuators that modify the basic mechanical delivery.
The best way to tell whether your engine is PD or not is by engine code, but I haven't found a list yet which distinguishes between PD and non-PD TDI engines. I might put one together - but not today, the boss might notice
The earliest VAG TDI engines, TDI 90 and TDI 110, are non-PD. They use a conventional diesel distributor pump system driven off the toothed cambelt. Injection quantity and timing are set at the pump and each injector has a separate feed line from the pump.
The more recent VAG TDIs, including 100, 105, 115, 130, 150 and 160 BHP engines, are PD (Pumpe Duese, best translated as Pump Injector). Fuel is distributed by a low-pressure pump and common fuel rail to individual injector assemblies attached to each cylinder head. Injection quantity and timing is set at the injector. Stripped of all their complex engineering detail, the injectors are just like a stirrup pump or a syringe squirting fuel through a spray head into the cylinder. Of course, the complex engineering detail is what makes it work reliably for hundreds of thousands of miles
The injectors are driven by extra lobes on the single camshaft. These lobes are very high-lift, and even though the cam followers have rollers, they are very highly stressed and require special high-grade oil to avoid premature wear.There was a PD TDI 90 but apparantly it was only fitted to VW Sharans.
All of these engines have their injection timing and quantity parameters finely tuned by electronic actuators that modify the basic mechanical delivery.
The best way to tell whether your engine is PD or not is by engine code, but I haven't found a list yet which distinguishes between PD and non-PD TDI engines. I might put one together - but not today, the boss might notice
OK, here's a list extracted from Elsawin. No claims for being complete
Code:
PD Engines
Code kW BHP Models
AJM 85 116
ANU 66 90 Alhambra
ARL 110 150 Leon, Toledo, Ibiza
ASZ 96 131 Leon, Toledo, Ibiza, Cordoba, Alhambra
ATD 74 101 Ibiza, Cordoba
ATJ 85 116
AUY 85 116 Alhambra
AVB 74 101
AVF 96 131
AWX 96 131
AXB 77 105
AXC 63 86 VW Transporter
AXR 74 101
BJB 77 105 Altea
BKC 77 105 Altea
038 74 101
AVQ 74 101
AXS 74 101
AZU 74 101
AZY 74 101
BEW 74 101
BKE 85 116
BLS 77 105
BLT 96 131
BLU 81 110
BPX 118 160
Non-PD Engines
Code kW BHP Models
1Z 66 90 Ibiza, Cordoba
AFN 81 110 Ibiza, Cordoba
AGR 66 90 Leon, Toledo, Ibiza, Cordoba
AHF 81 110 Leon, Toledo
AHH 66 90 Passat, Audi A4
AHU 66 90 Ibiza, Cordoba
ALE 66 90
ALH 66 90 Leon, Toledo, Ibiza, Cordoba
ASV 81 110 Leon, Toledo, Ibiza, Cordoba
AVG 81 110
AND 66 90
ANE 81 110
AVM 63 86
AXN 66 90
BAW 57 77
BEU 43 58
BJC 53 72AHF was also used in Audi A3 and early Golf IV GTTDI. Another thing to note is only the TDI 90 has a wastegate turbo, all others, including the PD engines, have a VNT turbo.
Interesting how the 130 engines are listed as "131" bhp in that list.
I thought they were actually rated at 130 PS (~128bhp)
I thought they were actually rated at 130 PS (~128bhp)
Interesting how the 130 engines are listed as "131" bhp in that list.
I thought they were actually rated at 130 PS (~128bhp)
Probably a conversion from kW & then rounded up.
muddyboots wrote
Interesting how the 130 engines are listed as "131" bhp in that list.
I thought they were actually rated at 130 PS (~128bhp)
Jon TDI wrote
Probably a conversion from kW & then rounded up.
Yep, Elsawin only quotes kW so the HP figure is an excel conversion, as we're all more familiar with horespower.
Interesting how the 130 engines are listed as "131" bhp in that list.
I thought they were actually rated at 130 PS (~128bhp)
Jon TDI wrote
Probably a conversion from kW & then rounded up.
Yep, Elsawin only quotes kW so the HP figure is an excel conversion, as we're all more familiar with horespower.
brad1
Guest
can someone please confirm whether a injector from AFN engine will be the same as the injectors in my ASV engine
cheers
cheers
gti gadge
Guest
Briefly
The earliest VAG TDI engines, TDI 90 and TDI 110, are non-PD. They use a conventional diesel distributor pump system driven off the toothed cambelt. Injection quantity and timing are set at the pump and each injector has a separate feed line from the pump.
The more recent VAG TDIs, including 100, 105, 115, 130, 150 and 160 BHP engines, are PD (Pumpe Duese, best translated as Pump Injector). Fuel is distributed by a low-pressure pump and common fuel rail to individual injector assemblies attached to each cylinder head. Injection quantity and timing is set at the injector. Stripped of all their complex engineering detail, the injectors are just like a stirrup pump or a syringe squirting fuel through a spray head into the cylinder. Of course, the complex engineering detail is what makes it work reliably for hundreds of thousands of miles
There was a PD TDI 90 but apparantly it was only fitted to VW Sharans.
All of these engines have their injection timing and quantity parameters finely tuned by electronic actuators that modify the basic mechanical delivery.
The best way to tell whether your engine is PD or not is by engine code, but I haven't found a list yet which distinguishes between PD and non-PD TDI engines. I might put one together - but not today, the boss might notice
The easiest way is to bend your ass over and look at the floor under the drivers seat
All PD's have a return to tank fuel cooler strapped their as the fuel is way to hot to go back in the tank otherwise
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