1998 VW Polo mk4 Tach wire

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mmh1

Copper - Posts: 117

Joined: May 10, 2005

Location: United Kingdom

Posted: April 18, 2006 at 6:02 AM / IP Logged

Hi,

I'm having trouble installing an Clifford Intellistart 4 to my VW Polo Mk 4 1998 with manual transmission.

Could anyone advise me of the colour of the Tach wire which is required for the engine starter.

This could be one that the UK installers could answer as it's a UK car.

Or will a Clifford RPM or Alternator sense module be required?

Many thanks, Mo

joe_1

Silver - Posts: 286

Joined: November 12, 2004

Location: United Kingdom

Posted: April 18, 2006 at 3:22 PM / IP Logged

hi what is the engine that your car has, so i can give exact wire colour

i am also a technician so if you have any engine trouble let me know, and i will do my best to help.

mmh1

Copper - Posts: 117

Joined: May 10, 2005

Location: United Kingdom

Posted: April 18, 2006 at 3:45 PM / IP Logged

Hi Joe,

Thanks for your reply.

The Polo is a mk4 1998/9 model 1.6GL 5dr.

It has a 1.6 8v engine.

Thanks, Mo

joe_1

Silver - Posts: 286

Joined: November 12, 2004

Location: United Kingdom

Posted: April 18, 2006 at 4:17 PM / IP Logged

hi mo, the autodata that i got doesnt give the exact rpm wire at the instrument panel, but here are the wires that come from the ecu to the instruments,GREEN/ blue white blue/white and violet, if you cannot get a tach signal from the instrument panel, then you can get the same signal from one of the fuel injectors, injector 1 wire colour is green, and can be found at pin 7 on the ecu, it is on the right hand side of the ecu harness and it is the top row,

i am also a technician so if you have any engine trouble let me know, and i will do my best to help.

mmh1

Copper - Posts: 117

Joined: May 10, 2005

Location: United Kingdom

Posted: April 18, 2006 at 4:31 PM / IP Logged

joe_1 wrote:

Hi Joe,

Thanks for getting back to me so quickly.

I was just hoping to connect to a negative coming from the coil, I'm only used to cylinder type coils like on my old Mini to get a tach signal. The Polo has a different type of coil and some type of ignition amplifier and I'm not familiar with that.

Connecting to the ECU worries me and this is the 1st install I'm doing regarding remote start. I have installed a couple of alarms before: a Selca and a Microscan so have a little bit of knowledge, but I'm no expert.

Where would you say would be the safest point to connect to to get an accurate rpm signal for the remote intellistart and blackjaxx?

Would it be a good idea to use a diode in the sensing wire from the alarm so that only a signal can flow from the rpm source to the alarm and not the other way just as a precaution so as not to fry the ECU?

Many thanks, Mo

joe_1

Silver - Posts: 286

Joined: November 12, 2004

Location: United Kingdom

Posted: April 20, 2006 at 12:11 PM / IP Logged

does the ign coil have 4 wires going to it on the multi? or does it just have 2 wires going to the coil.

set your multi meter to ac and test the coil for a fluctuating signal when the engine revs change, this wire should read a steady neg with the ign just on

i am also a technician so if you have any engine trouble let me know, and i will do my best to help.

mmh1

Copper - Posts: 117

Joined: May 10, 2005

Location: United Kingdom

Posted: April 25, 2006 at 1:54 PM / IP Logged

joe_1 wrote:

does the ign coil have 4 wires going to it on the multi? or does it just have 2 wires going to the coil.

set your multi meter to ac and test the coil for a fluctuating signal when the engine revs change, this wire should read a steady neg with the ign just on

Hi Joe, sorry for the delay replying.

It has 2 wires coming into the coil from the ignition amplifier and 1 connection from the coil to the distributor.

Thanks, Mo

joe_1

Silver - Posts: 286

Joined: November 12, 2004

Location: United Kingdom

Posted: April 25, 2006 at 1:59 PM / IP Logged

hi, connect it to the one connecting to the coil and distributor.

i am also a technician so if you have any engine trouble let me know, and i will do my best to help.

mmh1

Copper - Posts: 117

Joined: May 10, 2005

Location: United Kingdom

Posted: April 25, 2006 at 3:11 PM / IP Logged

joe_1 wrote:

hi, connect it to the one connecting to the coil and distributor.

I think that's the main HT lead from the ignition coil to the centre of the dizzy. (Haynes manual)

Is that still suitable? got me thinking due to the possible high voltages involved.

joe_1

Silver - Posts: 286

Joined: November 12, 2004

Location: United Kingdom

Posted: April 25, 2006 at 3:18 PM / IP Logged

i think you have to connect it direct to the wire, as you will not beable to do this to the high tension wire beacuse you cannot link into that, just hook it into the pulse wire from the coil to the cap

i am also a technician so if you have any engine trouble let me know, and i will do my best to help.

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