Ohm checking coils - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Turbo99 · 07-29-2013, 09:10 PM

Anybody know if you can ohm check our coils and which pins to check to, along with expected readings?

SSMickey · 07-29-2013, 10:31 PM

I can't answer your question, but if you suspect a misfire from a coil, just swap the suspect coil to the other bank and see if the misfire moves with it. It would take longer to drag out the meter and hook it all up.

Turbo99 · 07-29-2013, 10:54 PM

I have another set sitting here, but they are not Brand new and I just wanted to check them if I could. I have logged a misfire and found 2 bad plug wire on those cylinders but the miss is still there just not as bad I suspect I have a coil slowly going out. I will change them one the cylinders as I need but was just wondering is there was a OHM check I could to check the ones I have here and compare when I take on off.

SSMickey · 07-30-2013, 09:22 AM

I checked my repair source and it lists no spec for the coils themselves. The only thing it says is to move the suspect coil and see if the misfire moves with it. Sorry I couldn't be more help.

Iam Broke · 07-30-2013, 08:12 PM

Take resistance readings on all of them, if one is more than +/- 10% you may have a suspect. Induction readings would mean more than resistance but most cannot access an L meter. Shorted turns will result in lower resistance & less output for spark.

freedomintheskies · 08-10-2013, 11:25 PM

1-2 ohms on the primary side of the coil and 5-6k ohms on the secondary. Plug wires run about 2-3k ohms per foot.

07-29-2013, 09:10 PM	#1
Turbo99 Drives: 08' F250 Diesel & 10' Camaro 2SS Join Date: Nov 2010 Location: Gainesville,Fl Posts: 1,362 View My Garage	Ohm checking coils Anybody know if you can ohm check our coils and which pins to check to, along with expected readings? __________________ 08' F250 CCSB 6.4L Diesel White & Black, Blacked out, 580RWHP @ 55psi 13.21 @ 101mph 10' Camaro 2SS LS3 M6 White & Black, Blacked out, 684 RWHP & 633 FT.LBS @ 10psi 10.82@130mph TVS2300 ,Hendrix Street Slayer Twin Carbon Clutch, Dana 60 3.73, DSS 1400HP Axles,JRe cam & LaMotta Performance tuned,LPE Fuel, AI Super Chiller,MT ET Streets

07-29-2013, 10:31 PM	#2
SSMickey Drives: 2010 IBM 2SS Join Date: Feb 2010 Location: Columbia S.C. Posts: 1,455 View My Garage	I can't answer your question, but if you suspect a misfire from a coil, just swap the suspect coil to the other bank and see if the misfire moves with it. It would take longer to drag out the meter and hook it all up. __________________ ProCharger P1X, Vengeance Racing Kaotic Cam, ARH Headers and Exhaust with Borla ATAK mufflers, MGW Shifter, MTI Drop Springs, Forgeline RB3C Wheels, 3.91 gears, Night Owl LED Control System

07-29-2013, 10:54 PM	#3
Turbo99 Drives: 08' F250 Diesel & 10' Camaro 2SS Join Date: Nov 2010 Location: Gainesville,Fl Posts: 1,362 View My Garage	I have another set sitting here, but they are not Brand new and I just wanted to check them if I could. I have logged a misfire and found 2 bad plug wire on those cylinders but the miss is still there just not as bad I suspect I have a coil slowly going out. I will change them one the cylinders as I need but was just wondering is there was a OHM check I could to check the ones I have here and compare when I take on off. __________________ 08' F250 CCSB 6.4L Diesel White & Black, Blacked out, 580RWHP @ 55psi 13.21 @ 101mph 10' Camaro 2SS LS3 M6 White & Black, Blacked out, 684 RWHP & 633 FT.LBS @ 10psi 10.82@130mph TVS2300 ,Hendrix Street Slayer Twin Carbon Clutch, Dana 60 3.73, DSS 1400HP Axles,JRe cam & LaMotta Performance tuned,LPE Fuel, AI Super Chiller,MT ET Streets

07-30-2013, 09:22 AM	#4
SSMickey Drives: 2010 IBM 2SS Join Date: Feb 2010 Location: Columbia S.C. Posts: 1,455 View My Garage	I checked my repair source and it lists no spec for the coils themselves. The only thing it says is to move the suspect coil and see if the misfire moves with it. Sorry I couldn't be more help. __________________ ProCharger P1X, Vengeance Racing Kaotic Cam, ARH Headers and Exhaust with Borla ATAK mufflers, MGW Shifter, MTI Drop Springs, Forgeline RB3C Wheels, 3.91 gears, Night Owl LED Control System

07-30-2013, 08:12 PM	#5
Iam Broke PHAT B33 Drives: 2012 TF3 Camaro 2SS/RS M6 Join Date: Jun 2012 Location: Dark of the Moon Posts: 1,460 View My Garage	Take resistance readings on all of them, if one is more than +/- 10% you may have a suspect. Induction readings would mean more than resistance but most cannot access an L meter. Shorted turns will result in lower resistance & less output for spark. __________________ Another 1 of 371 '12 T3 LS3 M6's built.

08-10-2013, 11:25 PM	#6
freedomintheskies Drives: 2010 Camaro SS2 Join Date: Jul 2013 Location: Nova Scotia, Canada Posts: 59 View My Garage	1-2 ohms on the primary side of the coil and 5-6k ohms on the secondary. Plug wires run about 2-3k ohms per foot. __________________ Live in peace but defend it...Embrace it but never take it for granted...