Page 1 of 1

Bosch pencil coil pinouts?

PostPosted: Fri Apr 23, 2010 8:42 pm
by david@dtmpower.com
Does anyone have any info on the connections to the Bosch pencil type of coil. The Bosch # is 0221 504 100 or 464. there are three male pins in a triangle inside a radiused triangular housing.
Thanks
David
bosch 0221504100.JPG
bosch 0221504100.JPG (74.03 KiB) Viewed 16344 times
bosch 0221504100 pins.JPG
bosch 0221504100 pins.JPG (66.3 KiB) Viewed 16367 times

Re: Bosch pencil coil pinouts?

PostPosted: Wed Jul 06, 2011 7:18 pm
by jalai
I saw this a little late, but...

coil on the vertical position
- upper pin = secondary ground
- lower left pin = +12V
- lower right pin = coil -

And this is a curve of primary current / Dwell-time at 14V (RED curve / right scale).
Upper curves are different Dwell-time secondary currents.

Re: Bosch pencil coil pinouts?

PostPosted: Thu Jul 07, 2011 6:46 am
by Martin
BMW "N" Engine?