99 Ignition coil resistance
01-16-2016, 01:24 PM
#1
Newbie - Just Registered
Thread Starter
Join Date: Jan 2015
Posts: 6
99 Ignition coil resistance
My 99 max misfires after its warmed up a bit. I tested the coils with a cheap multimeter and here is what I got.
Misfire has been going on since i've had the car for a year or two. First time I brought to it my mechanic he said it was a coil pack and replaced one of them. I don't know which one it was for sure but 1 looks the newest and also a number on top of it (05053) which the others don't. I'm thinking this probably isn't an oem replacement?
How I numbered the cylinders, if you are facing the front of the car.
456
123
1: 0.88 ** Looks the newest, replacement?
2: 1.48
3: 1.44
4. 1.48
5: 1.48
6: 1.40
Pack 1 is the only one that really stands out. Other than that they all seem to be roughly the same. How about 6?
No SES light on now but there is a pending p1320. I should also mention that I tested the coils when the engine is cold even though the issue only seems to occur after its been warmed up for a while. I remember a user on here talking about false negatives when cold since the insulation only begins to fail after its been warmed up a bit. I'm also replacing the plugs. I only checked the front 3 cylinders today but discovered that 1 was an NGK platinum and the other 2 were bosch platinum.
Misfire has been going on since i've had the car for a year or two. First time I brought to it my mechanic he said it was a coil pack and replaced one of them. I don't know which one it was for sure but 1 looks the newest and also a number on top of it (05053) which the others don't. I'm thinking this probably isn't an oem replacement?
How I numbered the cylinders, if you are facing the front of the car.
456
123
1: 0.88 ** Looks the newest, replacement?
2: 1.48
3: 1.44
4. 1.48
5: 1.48
6: 1.40
Pack 1 is the only one that really stands out. Other than that they all seem to be roughly the same. How about 6?
No SES light on now but there is a pending p1320. I should also mention that I tested the coils when the engine is cold even though the issue only seems to occur after its been warmed up for a while. I remember a user on here talking about false negatives when cold since the insulation only begins to fail after its been warmed up a bit. I'm also replacing the plugs. I only checked the front 3 cylinders today but discovered that 1 was an NGK platinum and the other 2 were bosch platinum.
01-16-2016, 08:30 PM
#4
A coil from another manufacturer could have a different resistance reading from the factory Nissan coils (which I think are Hitachi) and still work OK.
But if it is causing a problem, I would think you would get a P030x (P0302 in reality) code since you only have one coil like this.
FWIW, bank 1 of the engine with cylinders 1 3 5 is by the firewall.
Bank 2 of the engine with cylinders 2 4 6 is by the radiator.
But if it is causing a problem, I would think you would get a P030x (P0302 in reality) code since you only have one coil like this.
FWIW, bank 1 of the engine with cylinders 1 3 5 is by the firewall.
Bank 2 of the engine with cylinders 2 4 6 is by the radiator.
01-17-2016, 07:29 AM
#5
Member
Join Date: Jun 2015
Posts: 249
My 99 max misfires after its warmed up a bit. I tested the coils with a cheap multimeter and here is what I got.
Misfire has been going on since i've had the car for a year or two. First time I brought to it my mechanic he said it was a coil pack and replaced one of them. I don't know which one it was for sure but 1 looks the newest and also a number on top of it (05053) which the others don't. I'm thinking this probably isn't an oem replacement?
How I numbered the cylinders, if you are facing the front of the car.
456
123
1: 0.88 ** Looks the newest, replacement?
2: 1.48
3: 1.44
4. 1.48
5: 1.48
6: 1.40
Pack 1 is the only one that really stands out. Other than that they all seem to be roughly the same. How about 6?
No SES light on now but there is a pending p1320. I should also mention that I tested the coils when the engine is cold even though the issue only seems to occur after its been warmed up for a while. I remember a user on here talking about false negatives when cold since the insulation only begins to fail after its been warmed up a bit. I'm also replacing the plugs. I only checked the front 3 cylinders today but discovered that 1 was an NGK platinum and the other 2 were bosch platinum.
Misfire has been going on since i've had the car for a year or two. First time I brought to it my mechanic he said it was a coil pack and replaced one of them. I don't know which one it was for sure but 1 looks the newest and also a number on top of it (05053) which the others don't. I'm thinking this probably isn't an oem replacement?
How I numbered the cylinders, if you are facing the front of the car.
456
123
1: 0.88 ** Looks the newest, replacement?
2: 1.48
3: 1.44
4. 1.48
5: 1.48
6: 1.40
Pack 1 is the only one that really stands out. Other than that they all seem to be roughly the same. How about 6?
No SES light on now but there is a pending p1320. I should also mention that I tested the coils when the engine is cold even though the issue only seems to occur after its been warmed up for a while. I remember a user on here talking about false negatives when cold since the insulation only begins to fail after its been warmed up a bit. I'm also replacing the plugs. I only checked the front 3 cylinders today but discovered that 1 was an NGK platinum and the other 2 were bosch platinum.
01-21-2016, 09:44 AM
#6
Junior Member
Join Date: Jun 2013
Location: Barryville, NY 12719
Posts: 40
I had a random misfire that was annoying and never threw a code and one time caused me to have to pull over at highway speeds because it was that bad. swapped coils from a parts max I have seemed to be better but then it happened again. Turned out it was the MAF causing it. Swapped it out and has been good for 3 years now maybe 4. So not always does it throw a check engine light or be a coil pack. I am just going from my experience if it helps.
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