Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

coil problem

More
7 years 3 months ago - 7 years 3 months ago #5574 by yhspeed
coil problem was created by yhspeed
[working in a 98 mitsubishi galant , misfire problem , when i put the clamp with oscilloscope and measured the primary current , i saw this








i think its a primary shorted [/b ] ¿what do you think guys?
Attachments:
Last edit: 7 years 3 months ago by yhspeed.

Please Log in or Create an account to join the conversation.

More
7 years 3 months ago #5575 by SniperDan
Replied by SniperDan on topic coil problem
It has the characteristics of a shorted secondary winding. Typically a shorted primary would be much more severe, with pretty much no ramping due to the lack of CEMF. Almost as a high amperage square wave if you can envision that.
"Without data, you are just another person with an opinion."

~W. Edwards Deming
The following user(s) said Thank You: yorman harol.a

Please Log in or Create an account to join the conversation.

More
7 years 3 months ago #5580 by Dylan
Replied by Dylan on topic coil problem

SniperDan wrote: It has the characteristics of a shorted secondary winding. Typically a shorted primary would be much more severe, with pretty much no ramping due to the lack of CEMF. Almost as a high amperage square wave if you can envision that.


Exactly!

Please Log in or Create an account to join the conversation.

More
7 years 3 months ago #5582 by ScannerDanner
Replied by ScannerDanner on topic coil problem

SniperDan wrote: It has the characteristics of a shorted secondary winding. Typically a shorted primary would be much more severe, with pretty much no ramping due to the lack of CEMF. Almost as a high amperage square wave if you can envision that.[/quote

exactly! And with that waveform, I am surprised it runs at all

Don't be a parts changer!
The following user(s) said Thank You: yorman harol.a

Please Log in or Create an account to join the conversation.

More
7 years 3 months ago #5587 by yorman harol.a
Replied by yorman harol.a on topic coil problem
thanks for you answers guys !!!
caracas, Venezuela

Please Log in or Create an account to join the conversation.

Time to create page: 0.250 seconds