What's a fuel injection pump??

cmcm789 · 08-05-2006, 16:47

I had the Octy in the garage with a few niggles. A starting and running lumpy problem was diagnosed as a faulty temperature sensor inside the Fuel Injection Pump. The garage have ordered on in which i shall be getting fitted mid month.

But what is it? what does it do?? Is it the same as a fuel pump?

JD

MaxLugo · 08-05-2006, 20:14

Quote:

Originally Posted by cmcm789

I had the Octy in the garage with a few niggles. A starting and running lumpy problem was diagnosed as a faulty temperature sensor inside the Fuel Injection Pump. The garage have ordered on in which i shall be getting fitted mid month.

But what is it? what does it do?? Is it the same as a fuel pump?

JD

Modern diesels, instead of having a mechanical diesel pump to control ignition and injection, have electronic pumps which are controlled by the ECU. These pumps operate at much higher pressures and tighter tolerance levels that the mechanical ones, thus providing better economy, more power, more efficiency, etc.

http://tdiclub.com/TDIFAQ/TDiFAQ-1.html

http://www.vwvortex.com/artman/publi...icle_325.shtml

http://tdiclub.com/

Lummox · 08-05-2006, 20:19

But his 110 bhp has a regular injection pump.

It does have a temp sensor built into the top of the pump.

cmcm789 · 09-05-2006, 08:58

Apparently the temp sensor cannot be changed alone, and the whole pump must be replaced.

MarkyMarkD · 09-05-2006, 22:18

We had the diesel pump replaced on our old 1.5D Citroen AX and it cost £550 :'( - not a nice repair to suffer.

***DGW*** · 10-05-2006, 10:12

Quote:

Originally Posted by cmcm789

Apparently the temp sensor cannot be changed alone, and the whole pump must be replaced.

I would get a second opinion on that due to the likely cost involved. But at least the pump should be available on exchange.

cmcm789 · 10-05-2006, 11:14

Quote:

Originally Posted by DGW

I would get a second opinion on that due to the likely cost involved. But at least the pump should be available on exchange.

Denis

Luckily the car still has 3 weeks of warranty left. That's why i am making the most of it now.

I def wouldn't want to be replacing it outside warranty if that's what it costs.

cheezemonkhai · 10-05-2006, 11:40

In that case i'd edit your about post about you know what just incase.

DarrenUK · 06-11-2006, 20:12

The temp sensors in the injection pump can be changed. It is not very difficult and replacement part should not cost much. You will probably have to go to an diesel injection specialist for the part. Search tdiclub.com for details....

cheezemonkhai · 06-11-2006, 23:09

Replacing fuel temp sensor, tutorial - TDIClub Forums

Tools required:

10mm nut driver (or socket) to remove engine cover
3/8" ratchet handle
5" (at least) extension
TX30 socket (male, non security or security)
TX10 socket (male, non security or security)
13mm socket
MetalNerd injection pump tool
1 wire-tie (optional, but recommended)
some rags

Part required:

Fuel Temperature Sensor VW part no. 028 906 040 C

08-05-2006, 16:47	#1
cmcm789 Briskodian Join Date: Oct 2004 Location: Northern Ireland Posts: 965 Thanks: 0 Thanked 0 Times in 0 Posts	What's a fuel injection pump?? I had the Octy in the garage with a few niggles. A starting and running lumpy problem was diagnosed as a faulty temperature sensor inside the Fuel Injection Pump. The garage have ordered on in which i shall be getting fitted mid month. But what is it? what does it do?? Is it the same as a fuel pump? JD __________________ Octy Elegance TDI (110bhp)

08-05-2006, 20:19	#3
Lummox U18 Automotive Join Date: Sep 2003 Location: Newport Pagnell Posts: 21,762 Thanks: 22 Thanked 636 Times in 545 Posts	Re: What's a fuel injection pump?? But his 110 bhp has a regular injection pump. It does have a temp sensor built into the top of the pump. __________________ Unit 18 Automotive Services now open Servicing, repairs, modifications you name it we do it. Cupra console bushes at special price, PM for a very competitive quote.

09-05-2006, 08:58	#4
cmcm789 Briskodian Join Date: Oct 2004 Location: Northern Ireland Posts: 965 Thanks: 0 Thanked 0 Times in 0 Posts	Re: What's a fuel injection pump?? Apparently the temp sensor cannot be changed alone, and the whole pump must be replaced. __________________ Octy Elegance TDI (110bhp) Last edited by cmcm789; 12-05-2006 at 10:58.

09-05-2006, 22:18	#5
MarkyMarkD Briskodian Join Date: Feb 2005 Location: Leics UK Posts: 318 Thanks: 0 Thanked 0 Times in 0 Posts	Re: What's a fuel injection pump?? We had the diesel pump replaced on our old 1.5D Citroen AX and it cost £550 :'( - not a nice repair to suffer. __________________ Do something useful - Join the BRISKODA Folding team: http://www.briskoda.net/modules.php?...warticle=&id=26

10-05-2006, 11:40	#8
cheezemonkhai Briskodian Join Date: Jan 2006 Posts: 14,632 Thanks: 87 Thanked 398 Times in 369 Posts	Re: What's a fuel injection pump?? In that case i'd edit your about post about you know what just incase. __________________ Cars make CO2 and trees absorb CO2. By driving your car you're feeding a tree and helping the environment.

06-11-2006, 20:12	#9
DarrenUK Briskodian Join Date: Nov 2006 Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	Re: What's a fuel injection pump?? The temp sensors in the injection pump can be changed. It is not very difficult and replacement part should not cost much. You will probably have to go to an diesel injection specialist for the part. Search tdiclub.com for details....

06-11-2006, 23:09	#10
cheezemonkhai Briskodian Join Date: Jan 2006 Posts: 14,632 Thanks: 87 Thanked 398 Times in 369 Posts	Re: What's a fuel injection pump?? Replacing fuel temp sensor, tutorial - TDIClub Forums Tools required: 10mm nut driver (or socket) to remove engine cover 3/8" ratchet handle 5" (at least) extension TX30 socket (male, non security or security) TX10 socket (male, non security or security) 13mm socket MetalNerd injection pump tool 1 wire-tie (optional, but recommended) some rags Part required: Fuel Temperature Sensor VW part no. 028 906 040 C __________________ Cars make CO2 and trees absorb CO2. By driving your car you're feeding a tree and helping the environment. Last edited by cheezemonkhai; 06-11-2006 at 23:18.

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