View Single Post
Old 09-15-2011, 08:02 PM   #25
art leong
VIP Member
 
Join Date: Dec 2001
Location: Richmond Hill, Georgia
Posts: 2,003
Likes: 0
Liked 1 Time in 1 Post
Default Re: Testing coils on a coil over plug system?

Quote:
Originally Posted by buzzinhalfdozen View Post
Art, if you have 12.5 volts at battery and 11.8 volts at coil you are seeing voltage drop in that circuit, what voltage does the coil have when it's running?
The only thing on is the O2 sensor and the ECU. I'll check it with the O2 sensor unplugged
When the car starts and runs the voltage goes to 13.9
__________________
Art Leong 2095 SS
art leong is offline   Reply With Quote