Hi list,

Week before...
I dissected Idle Stabilizer Control Unit (VW 251-907-393B).
The one condenser and one transistor were burned. I don't
know why part was burned. I ordered that parts to the friend.
He is the engineer of SONY. He delivered that parts to me yesterday.
I attached that parts to ISCU. Work was finished in 10 minutes.
Westy's idle is stable now (about 950rpm).
But, when A/C works, transistor becomes very hot.
Which Westy has this heat, too?

I don't trust this unit. Because, I don't make the cause that unit
was burned clear.

Anyone can explain to me the symptoms of this transistor ?
Anyone have the Semiconductor diagram of this unit?

I want to search this unit. ISC valve (025 906 457A) is new.
If I can't solve this problem, I will attach CPU-Cooler to the transistor.
I am familiar with Westy's troubles little by little. It's Fun!! (^_^)

Pix
http://members.aol.com/winpai/ISCU01.jpg
http://members.aol.com/winpai/ISCU02.jpg

TIA..

Yosh@87Westy
dolphin@mars.netspace.or.jp
Good Japanese, Poor English!

SPL THANKS to:
GS, DR, DB, KW..

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