Is there a way to check the individual coil packs

ITSDACRAZYMAILADY

MEMBER
1989 CHEVROLET CELEBRITY

Car is acting like it wants to miss, dies at different times

Sunday, January 15th, 2012 AT 10:37 PM

5 Replies

SATURNTECH9

MECHANIC
30,869 POSTS

Any codes in the computer?Are you loosing spark to certain cylinders?If so which ones?When it dies does it restart right away?

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Sunday, January 15th, 2012 AT 11:26 PM

RASMATAZ

MECHANIC
75,992 POSTS

Check the fuel pressure if its within specs. Test the TPS and MAP sensors-Check the coil's primary and secondary winding resistances-

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Sunday, January 15th, 2012 AT 11:28 PM

ITSDACRAZYMAILADY

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3 POSTS

The primary & secondary resistance readings are what im looking for, @ the moment im just using a timing light going wire to wire & im getting different flashes from the same pack some steady as I think they should be some slower & staggered but definitely different than it should be

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Sunday, January 15th, 2012 AT 11:47 PM

WRENCHTECH

MECHANIC
20,761 POSTS

In theory you can test the resistance but in reality it won't help you because it changes too drastically with temperature and likely only fails the test when the coils get hot.

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Monday, January 16th, 2012 AT 12:08 AM

SATURNTECH9