4agze supercharger switch

[levinguy]

have attempted to put a switch in my ae101 gtz for the supercharger like in this thread http://forums.toyspeed.org.nz/viewtopic.php?t=47599&postdays=0&postorder=asc&highlight=supercharger+switch&start=0

using this ecu pinout

http://www.club4ag.com/faq%20and%20tech_pages/Turner%20Peter/AE92%20and%20AE101%204A-GZE%20ECU%20Comparison.htm

now when i try to drive it the car will only start wen the switch is bridging the wire, when it is earthed or just broken the car won't start at all, turns over but doesn't start

when i have been driving and changed the switch postion the car dies, with throttle it sounds like the fuel or possibly air has been cut

the wire i cut was black and yellow

what have i done?
wrong cable?

[Rick]

The question is WHY!

[Mr Revhead]

yeah, please tell us why??

and to me it seems uv cut the wrong wire

[Lloyd]

Best bit of advice in that link was this:

Give up, it is not worth it.

If you want more economy, trade it in on a 4AFE powered one.

Why do you want to do this exactly? The supercharger is controlled by a relay as I'm sure you will have noticed. You either need to find a way of (assuming the relay always has power) to break the earth, give it an earth or leave it up to the computer as though you'd never touched it.

Failing that, use the switch to feed the supercharger power/earth directly to it at the wiring coming off it. Probably a lot easier than poking around with ECU wires and trying to earth them not knowing if they are even the right ones.

[KinLoud]

FFS!
I did this to my AE101 GTZ about 5 years ago.
I was VERY carefull to triple check that I had the correct wire before I cut it!
1 - Solder up the wire you cut so your car works again!
2 - Kick yourself in the bum real hard
3 - Shout loudly "don't believe everything you read on the internet"
4 - Shout loudly "toyota often changes the colour of the wires"
5 - Get a multimeter
6 - trace the wire from the supercharger relay back to the ecu
7 - double check that earthing the wire at the ecu causes the relay to operate (probably need the ignition on)
8 - triple check that the wire you have traced and checked actually matches up with the ecu plug diagram that YOU SHOULD HAVE BEEN LOOKING AT BEFORE YOU CUT THE FIRST WIRE!
9 - cross your fingers
10 - cut the wire and take it for a drive

As far as the engine having no power... on the cruise back from Napier on one of the Queens Birthday Toyspeed meets I was doing 155kph with supercharger off on a straight level (private) road.

Ken
Ham
021 408 863

[Mr Revhead]

yeah itll go with no boost

but why?!!?!?

[tex]

From the link posted:

posting.php?mode=reply&t=50920

Yep thats the wire. Dont worry about the name of the pinouts it could be anything. There are a few other diagrams on club4ag tech reference that you could use to cross reference.

Just make sure you get the right wire, pin 25 on a connection (26 pin plug) because the ignitor has a black yellow wire and you dont wanna cut that Wink

It helps when you reads things through throughly.

TEX

[thegreatestben]

I just cut the wire and put the switch in between on of the two wires on the sc itself. I didnt do it though. My friend did. Its stupid, You dont get anything out of it, just a slow car.

[evil_si]

I just cut the wire and put the switch in between on of the two wires on the sc itself. I didnt do it though. My friend did. Its stupid, You dont get anything out of it, just a slow car.

and you thought you would get anything else? maybe like amazing extra 20psi with it turned off

[Caveman]

Uh oh

yellow and black is also a wire for the ignitor

CHECK WHICH WIRE YOU CUT!!!!111one

[thegreatestben]

I just cut the wire and put the switch in between on of the two wires on the sc itself. I didnt do it though. My friend did. Its stupid, You dont get anything out of it, just a slow car.

and you thought you would get anything else? maybe like amazing extra 20psi with it turned off

Naw nothing stupid like that, Was seeing if It made any difference to fuel economy. This was during stupidly high talk of $2/L petrol prices. But it doesnt seem to give you any increase in economy. I managed to get another 4 psi out of that pulley tho. Did you ever get that oem one in the mail???

[beeker]

My competition 4agze is perme on. No idea how this was done by the prior owner thou.

[Mr Revhead]

you just earth one of the wires from the s/c