Coil Pack Impendence Range

[David Martin]

Does anyone know what the coil pack ohm/impendence should be on a 1.8 L engine? mine is a 2013. My dealer service manual does not give any ranges for the coils............it does give ranges for the fuel injectors 11.5 to 12.5 OHM and my injectors are at 12ohm right in the middle.

The only info I have found on a search was for the MR-1 number in a service manual. My ohm reading on my 4 coils are (1) 960 (2)970 (3) 970 (4)976 the cylinder in question on my port motor is #2 cyl which was extremely rich/wet since this cyl coil does not stand out........ all numbers are fairly close all coils are ageing together...........they all are rich, I would have expected the #2 to stand out as the highest impedance but that number belongs to #4.

Without new coil mfg specification it hard to tell how far the drift of all four coils. NEXT test is a good old visual inspection of the spark firing......it should be strong/blue. Compare all 4...... one at a time to look see if #2 to stands out!!!!! My gut says everything will be normal.

Thanks ahead of time guys

 

[dgfreeze]

I can offer no insight for the ohm readings, but a fairly simple test would be to swap coils with another cylinder, and see if the failure follows the coil, or stays with the cylinder.

 

[David Martin]

I can offer no insight for the ohm readings, but a fairly simple test would be to swap coils with another cylinder, and see if the failure follows the coil, or stays with the cylinder.

Thanks I just got done testing and yes I did a coil swap to do a visual spark test on my 3 black plugs. I post my numbers tonight and where my diagnose stands.

 

[WREKS]

for the MR-1