msd 6010 problem???
09-27-2014, 08:06 PM
#1
Staging Lane
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msd 6010 problem??? I got a 99 z28 and just got the car back together and took it out for a spin bout 30miles or so well on the cruise i noticed it had a little off idle stumble or if i stab it it would hesitate then take off i was thinking carb tuning so i had a buddy set the carb up etc and made another hit and its still there whenever i would leave a light from time to time had a little miss or at a cruising speed well on my way back from my test trip the car started missing and breaking up horribly barely limped it home good thing i was close got it in the garage and instead of ideling aroind 1100 like it was it was at 650 so shut the car off let it sit for a minute and went to start it back up and nothing just cranked. If i tap the gas it would get a little hickup here and there so i let it sit for 45mins or so and went back out and it fired right up. Well called msd and they think bad crank sensor or maybe the box. It has these problems most of the time but from time to time its fine and you can tell idel is much smoother and stronger sounding, starts better and when u wack the gas from a stand still its like the car has 40 more hp no hickup or anything just wondering if u guys would have any sugestions before i start throwing parts at it or send the box back. Sorry for any spelling or grammer errors typing this from my cell sucks and thanks for any input
09-28-2014, 01:48 AM
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09-28-2014, 03:15 AM
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According to MSD the only way to ground the system properly is to run a ground straight from the battery to one of the heads. At that spot on the head, ground the MSD box. Then from that same spot run a jumper to the other head. The Hot wire should NOT be connected to the wiring harness anywhere. Run a dedicated switched and fused power wire to the MSD box. From the battery cable or battery. If that doesn't work you will have to go through the harness very carefully, and check all the connections. Many have had the same issues. Most seemed to be in the harness.
09-28-2014, 10:06 AM
#7
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According to MSD the only way to ground the system properly is to run a ground straight from the battery to one of the heads. At that spot on the head, ground the MSD box. Then from that same spot run a jumper to the other head. The Hot wire should NOT be connected to the wiring harness anywhere. Run a dedicated switched and fused power wire to the MSD box. From the battery cable or battery. If that doesn't work you will have to go through the harness very carefully, and check all the connections. Many have had the same issues. Most seemed to be in the harness.
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09-28-2014, 05:16 PM
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I was having intermittent issues with my 6012 box during Drag Week where the drivers side coil bank would stop firing. MSD had a tech guy at every track and he suggested moving the ground straight to the battery and that fixed the issue. I thought I had a good ground, it was attached to the frame rail, on fresh bare metal, and I used dielectric grease. I've been doing my grounds like that for years and this is the first problem I've ever had.
09-28-2014, 06:49 PM
#14
After reading all the problems people were having with these boxes and most were grounds. I called MSD and they said the block is not acceptable for the ground. They said the head so it would be the closest to the spark plugs. That's why the jumper is needed to the other head. A simple call will confirm. And it has to come directly from the battery. Everything else can run off the chassis ground.
09-28-2014, 06:55 PM
#15
If that doesn't do it. You are going to have to go through the harnesses. Start with the coil harnesses. Then the main Msd harness. Look at the plug and make sure none of the pins are pushed back and loose. May not be making completely.
09-28-2014, 08:14 PM
#16
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Well i ran a ground to the head then to the other head and ran the batt ground to the head also fires the car up and its still not right tried to go down the street and it was breaking up also idel sucks died once while attempting to turn around to get back home dam i really dont feel like pulling the harness out lol
09-28-2014, 09:03 PM
#18
After reading all the problems people were having with these boxes and most were grounds. I called MSD and they said the block is not acceptable for the ground. They said the head so it would be the closest to the spark plugs. That's why the jumper is needed to the other head. A simple call will confirm. And it has to come directly from the battery. Everything else can run off the chassis ground.
I've never had an issue and i have used so many of them grounded to the intake it is not even funny.
