ignition coil negitive side

[coreys88burban]

on my 1988 suburban 350 what is the negitive side on the ignition coil? theres no markings anywhere and im trying to hookup the green wire for a Tach. cant find this anywhere. i know what the coil is and where ts located it just has no - or + marks

 

[chasespeed]

You have a multi-meter? What are the the 2 wires? White and green?

Chase

 

[coreys88burban]

You have a multi-meter? What are the the 2 wires? White and green?

Chase

no i dont, it says connect the green wire to negitive side of ignition coil..it tbi so its not the convetional coil that says -, +

 

[dwh]

A quickie search yields this clue:

http://www.ehow.com/how_7603984_testing-1988-1989-chevy-gmc.html

"Look at the coil and notice that the plug has two sides. The right side has a pink battery plus (+) and a white (tach) wire. The other side has a white (ignition coil control) and a pink and black (ignition control module) wire."

 

[coreys88burban]

A quickie search yields this clue:

http://www.ehow.com/how_7603984_testing-1988-1989-chevy-gmc.html

"Look at the coil and notice that the plug has two sides. The right side has a pink battery plus (+) and a white (tach) wire. The other side has a white (ignition coil control) and a pink and black (ignition control module) wire."

mine has more than one white wire on it though. plus no pink wire..i dont ready any of those pickup ones becuase they are never correct online..body changeover thing.

 

[chasespeed]

Get a hold of a multi meter. Disconnect plug... test from plug to neg, or GOOD ground. When you have 0ohm, you have the neg side of the coil...

Chase