AndrewRS

iTrader: (2)

Did you end up cutting the cross-member or did the engine and adapter plate clear somehow? I really like how you didn't have to cut up the spoiler and the latch still works.

Outlaw 911

I cut part of the center out and made up a 1/2 6061 plate on the bottom tied into the bottom braces. Also bleneded in the inside and added some reinforcements there. Im not sure if i have a pic of it before i put it in.

Outlaw 911

Well my engine is running again! Pretty much figured it was way lean down low at start up. 5 weeks of checking and waiting on a local guy with a tuner to show. Finally took it 1.5 hours to anouther guy who fixed the tune. Also had a weak block to chassis ground causing some problems.

dcd215

Looks like you are on the home stretch.......be interested in your comments after driving it

Outlaw 911

Been chasing some water leaks today so no test drive yet.

Anyone know what temp the Porsche fans come on?

Outlaw 911

BTW I did paint my console during the down time......

Outlaw 911

Well all i have been doing is chasing water leaks in my water pump adapters going into the block. Nothing i have done will stop them from leaking, liquid teflon, rectorseal and a harding thread sealer ....no effect. So i have ordered a ls3 stock pump and it is going on as soon as it gets here.

I also wired the fans to the ls so they are working now.

Also does anyone know what the blue Porsche wire on the alternator is looking for? I hooke mine up to the ls alt wire but the dash display still shows a battery failure. But the gauge shows charging voltage. Thanks in advance for any ideas?

dcd215

Blue wire goes to the light terminal on the alternator

Outlaw 911

If that's position "b" thats where its at. My harness only has one wire on the alt plug , orange on position b. Getting the battery/generator failure on dash display. Maybe the porsche is looking for something more.

dcd215

The Porsche Harness or the GM harness ?The GM alternator I have has 3 wires .One of which is for the idiot light .The 1999 Porsche via the blue wire is looking for the idiot light connection to the alternator .The blue wire when connected to the alternator grounds the idiot light when the key is on -engine off- and supplies 12 volts when the engine is running and the alternator is working .If you have a terminal on the back of the alternator that will take 3 or four wires more wiring is needed as well as the proper plug .If there is no terminal on the back of the alternator ...........I don't know

dcd215

One more thing -on the 1999 that blue wire also is connected to abs and traction control .Don't know on your model .

hayabusa

iTrader: (7)

You say the blue is looking for 12volts can it be taken from the the

hayabusa

iTrader: (7)

the 12 volt wire leading off the gm alternator harness?

dcd215

The gm alternator has a terminal marked l for the light and that is what the blue wire should connect to .The blue wire serves two purposes -turn off the idiot light by providing 12 volts when engine runing (I misspoke on the grounding) to counter the 12 volts from the ignition on to the idiot light .Two 12 volts is effective 0 at the idiot light .The second purpose is to tell the abs and traction control the engine is running .

Outlaw 911

My gmpp harness only has one wire from the plug, it orange. The stock plug from it had 3. If the porsche blue wire is looking for 12v then that is the problem because iirc the gm wire is a 5v reference. Thanks guys

dcd215

Google -the alternator bible pirate 4x4 .There is a complete tutorial on what goes where and why .

Outlaw 911

Thanks DCD, way more info there than one can absorb! After reading and checking my wire is hooked to the correct wire.
I am still wondering what forsure the porsche blue wire is looking for.

dcd215

Mine works-you sure you have the right blue wire ?

Outlaw 911

Yep its the one, what voltage is your blue wire seeing?

ca12los

​​​​​​​The blue wire wants to see ground with key ON engine OFF. With engine running and alt charging the blue wire sees 12v which shuts off the charge idicator light. The problem is some alternators use the lamp circuit to turn on the field circuit in the voltage regulator. Which alternator are you using. W