Author Topic: what are these wires for on the pump? (Read 2356 times)

MouseGTD · « **on:** January 05, 2009, 04:25:30 pm »

i've just got a 1996 seat toledo which has an AAZ in it to use as a doner for the engine, but after looking at the diesel pump and comparing it with the one on my SB i'm a bit confused. on the SB pump theres only one wire coming from it which goes off to a live. although on the AAZ there are four wires coming from it, 2 come from where the one wire normally goes although it has some kind of cover over it, and 2 from the center of the four fuel pipes (theres just a nut there on the SB).

heres a pic of what i'm on about...

other than that the pump looks just the same as my 1.6 one :?

Baxter · « **Reply #1 on:** January 05, 2009, 04:30:42 pm »

Its the equivelent of the needle lift sensor on a TDI, it measures when injection commences and dicks about with the pump timing via the solenoid on the bottom of the pump.
It is basically semi electronic control.

MouseGTD · « **Reply #2 on:** January 05, 2009, 05:04:21 pm »

can i bypass or get rid of this?

Baxter · « **Reply #3 on:** January 05, 2009, 05:43:02 pm »

Practically yes, ideally no.
I have run them without, they work, but it's there for a reason.
The control unit is connected to a vehicle speed sensor as well as loads of other things.
I have fitted them in T3's and snipped with wires back when I have had no option but most people find another AAZ pump without all the electrical gubbins and fit that instead.
maybe have a word with TinTin or Giles and see what they suggest.

MouseGTD · « **Reply #4 on:** January 06, 2009, 01:55:15 am »

would fitting my 1.6 pump be an option? would it suffer performance wise?

shegel · « **Reply #5 on:** January 06, 2009, 02:03:12 am »

dude that thing is nasty looking clean it up

MouseGTD · « **Reply #6 on:** January 07, 2009, 04:21:29 pm »

so could i just get around this by fitting my 1.6 IP?

Author Topic: what are these wires for on the pump? (Read 2356 times)

Baxter

Baxter