Tachometer not working.

[FTO-Love-Affair]

So, a few months ago I replaced the motor in my black GPX with the one in a silver GPX that I bought for $700(Bargain, right!).

Thing is, with the new engine the tacho doesn't work. I had a couple of occasions where it worked for 20 seconds after starting the car, but after the two or three times that happened, nothing. In the brief few moments that I drove the silver FTO, the tacho wasn't working in it either, so I'm thinking it is something to do with the engine.

I perused through some old threads on here and many times the Ignition Failure Sensor has been to blame, So I'm thinking this could be the cause of my problem.

I can live without it, but it is hell annoying, so I was wondering how much roughly (if anyone knows) it would cost to get a new one put in and how long it would take.

[Technikhaus]

It's almost 100% the IFS, if you still have the old motor then swap the IFS over between them, otherwise they're not all too expensive.

[dstocks]

Yep, thats what itll most likely be. Ive got new or used ones if that helps. Even better, grab the one off your old engine if you still have it.

[FTO-Love-Affair]

The most common sense option of grabbing it from my old engine and I never thought of it.

I'll do that!

[FTO-Love-Affair]

Stupid question: where on the engine is the IFS located?

[FTOwnage]

Just near the thermostat housing if I remember correctly. Below it or next to it

[dstocks]

Yep, about an inch closer to the firewall than the filler cap, but about 10-15cm lower (probably need to remove intake pipe to see it.)

[Bennoz]

Looks like this