Autosport Labs

Are the ignition leads on the right plugs?

Sounds like it's not firing on 7 - does sounds a bit like bad coil. They generally work on a wasted spark system which means there should be another cylinder firing at the same time as 7 - you should be able to swap this lead with 7. However, have you checked your trigger wheel installation to see i...

Glad you got it working

Why would that cause a misfire? Wouldn't that be a good thing? I've got resistive leads anyway so don't think that's the problem

Yep, plugs seemed to be OK when I last pulled them a couple of days ago - none of them stood out as being covered in soot/oil etc. Why would resistive plugs make a difference?

If I unplug the individual leads from the coilpack, the spark jumps about 2 inches - I think that's strong enough! Not sure if misfire is happening at higher revs - at idle it's really lumpy with lots of popping from the hot exhaust (i.e. unburnt fuel - so don't think it's a fuelling problem). I'm e...

Thanks again...

Thanks. I've just ordered an infrared thermometer so hopefully it will tell me which cylinder isn't firing properly. By swapping the leads over, I can see if it's the coil pack that might be at fault

Terrific...

Which pairs fire together?

Does the 4-post coilpack fire two "posts" at each spark (i.e. can you interchange the ignition leads to help diagnose problems?)

Am I right in thinking the coilpack fires twice (wasted spark) per revolution? I'm trying to establish whether mine is faulty

I had endless problems with this error but it turned out to be the power supply I was using (which was duff, even though it made the LED light up OK)

I see you've tried a couple of batteries - were they fully charged?

Thanks! Fuel bill isn't too cool, mind you, don't know how much of a difference the MJLJ will make

Haflinger? Pinzgauer, my friend, the big one!

Pleased to report it's far better in the wet than the old system

I had this problem as I am running the ignition system off a voltage dropper (truck is 24V). When the battery isn't fully charged, you lose too much whilst cranking so the MJLJ isn't powered. Try using a small fire alarm 12V battery to power it whilst cranking. Once the engine is running, it should ...