Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 05-26-2010, 03:39 AM   #1
Registered User
 
Join Date: Apr 2009
Location: Australia
Posts: 328
Smart or dumb coils?

Hi guys,

anyone know if the 986 2.5 runs smart or dumb coils? Apparently if they only have two wires going to them they are dumb, mire wires could be either...

Cheers,
Sam
sparker is offline   Reply With Quote
Old 05-26-2010, 07:07 PM   #2
Registered User
 
Join Date: Apr 2009
Location: Australia
Posts: 328
Found some information that will help, if anyone has a coil out they can measure or knows the wiring this will tell:

Three terminals on coil could be either smart or dumb coils.

If dumb, it would be:
12v, ground, and the coil negative signal from an ignition driver inside the ECU.

If smart, it would be:
12v, ground, and the dwell/timing pulse.

Also, a dumb coil will have low resistance between coil positive (12v
pin) and coil negative. Should be less than 1 ohm.

Anyone able to assist with this information?

Regards,
Sam
sparker is offline   Reply With Quote
Old 06-20-2010, 04:17 AM   #3
Registered User
 
Join Date: Apr 2009
Location: Australia
Posts: 328
Hi guys,

anyone know? I measured the coil plug but got nothing... There us what I think will be earth (yellow/grean), a brown and a black wire. Anyone ever plated with these ignitions???

Sam
sparker is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 03:17 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page