VWDiesel.net The IDI, TDI, and mTDI source.

Engine Specific Info and Questions => IDI Engine => Topic started by: kidkoala on September 30, 2006, 06:51:36 pm

Title: making my 1.9td faster
Post by: kidkoala on September 30, 2006, 06:51:36 pm: hey folks - i'm just about to start on the next step of making my car 'faster', but i'm unsure as to how i might achieve the step listed below

-----------------------------------------------------

Quote from: VWRacer

(http://www.home.earthlink.net/~rps1976/Images/Diesel/Smog/Smog105410470.jpg)

2. Now, to disconnect the connector #4 and to find a means of connecting the selenoid which is below of this connector #4 on the same wire as the connector #3 (fuel cut-off selenoid). You can let the connector #4 hang, it is now useless.

This modification prevents the pump from "delaying" the timing to reduce the Nox (polution) It is necessary that this selenoid(#4) is activated (12v) with each time the engine is ignited to keep the advanced timing even with low RPM.

---------------------------------------------

how might i be able to connect the selenoid to connector #3?
anyone done this that could shed some light?

many thanks!
Title: making my 1.9td faster
Post by: ricosuave on September 30, 2006, 08:47:33 pm: you would remove #4 connector, then take another piece of wire with a similar end and splice it into the #3 line somewhere, and run the new wire over to where #4 would go...
Title: making my 1.9td faster
Post by: coke on September 30, 2006, 09:12:40 pm: (http://www.winds.org/~coke/pics/solenoid.jpg)

Is the solenoid in the red circle pictured here the one that needs to have a constant 12v feed to it? And this solenoid is a timing advance of some sort?

I dont think this solenoid works on my car and I've had a hell of a time starting it when warm, but if I advance the timing with the cold start lever it works great. What does it get its feed from? A temperature sender?
Title: making my 1.9td faster
Post by: kidkoala on September 30, 2006, 10:54:24 pm: Quote from: ricosuave
you would remove #4 connector, then take another piece of wire with a similar end and splice it into the #3 line somewhere, and run the new wire over to where #4 would go...

could i snip #4, splice it to #3, cap the leftover #4 wires?
Title: making my 1.9td faster
Post by: coke on September 30, 2006, 11:00:00 pm: Why dont you just leave enough wire of the #4 connector, cut it, put a round connector on it and hook it to the fuel solenoid on the pump?
Title: making my 1.9td faster
Post by: RabbitJockey on October 01, 2006, 07:57:57 am: no the solenoid in the picture is not the one tha tneeds a constant 12v, the one that needs a constant 12v is the one under the lda, it looks almost like a oil pressure or water temp sending unit or something
Title: making my 1.9td faster
Post by: coke on October 01, 2006, 09:29:21 am: The solenoid your referring to would be the fuel shutoff solenoid and that has 12v anyways, because if it didn't, your car wouldn't be running. #4 in the picture posted above I believe is what I have circled in mine, and that article is saying #4 has to have a constant 12v+ as well as the fuel shutoff solenoid, labled as #3.
Title: making my 1.9td faster
Post by: Chestrockwell on October 01, 2006, 11:19:25 am: The constant power thing will do very little if anything to the performance. It is a minor advance solenoid that decreases fueling at low manifold pressure. I noticed nothing when I did this on my car.
Title: making my 1.9td faster
Post by: kidkoala on October 01, 2006, 12:21:56 pm: Quote from: Chestrockwell
The constant power thing will do very little if anything to the performance. It is a minor advance solenoid that decreases fueling at low manifold pressure. I noticed nothing when I did this on my car.

so this step is not necessary to adjust the fuel? i could just skip it?
Title: making my 1.9td faster
Post by: kidkoala on October 02, 2006, 06:31:32 pm: anyone?
Title: making my 1.9td faster
Post by: coke on October 02, 2006, 06:41:21 pm: Seemed to help my car, I'd do it. Takes about 10 minutes max.
Title: making my 1.9td faster
Post by: Chestrockwell on October 02, 2006, 07:11:15 pm: Quote
Quote from: Chestrockwell
The constant power thing will do very little if anything to the performance. It is a minor advance solenoid that decreases fueling at low manifold pressure. I noticed nothing when I did this on my car.

so this step is not necessary to adjust the fuel? i could just skip it?

I was just talking about providing constant power to the advance unit on the side of the IP. I don't know if the advancer is the same on a 1.6. As for fueling and turbo adjustment, they will definately change the performance of your engine.
Title: making my 1.9td faster
Post by: kidkoala on October 03, 2006, 10:01:13 am: Quote from: coke
Seemed to help my car, I'd do it. Takes about 10 minutes max.

so i guess i go back to my original posting, how do i connect these two?
Title: making my 1.9td faster
Post by: kidkoala on October 04, 2006, 07:02:46 pm: anyone help with this simple task? i don't want to screw things up, just looking for advice from people that have done this before.

can i simply cut #4 and splice it to #3?
Title: making my 1.9td faster
Post by: andy2 on October 04, 2006, 07:57:50 pm: Yes you can simply cut #4 and splice into #3,just insulate or cover up the remaining #4 wire so it does'nt short out on things.
Title: making my 1.9td faster
Post by: coke on October 04, 2006, 10:19:18 pm: Its easiest to get a small round stud connector and crimp it on to a small piece of wire. Attach the wire to the solenoid, then connect to the fuel shutoff solenoid.

Easy as pie.