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Just found this Microtech IGBT X4 after opening my fuse box to check something. A bit surprised and concerned as it was placed using non heat resistance tape onto fuse box diagram which had then come off and then been turned upside down plus as you can see one wire is not connected. I assume this is somehow related to an after market dwell adjustment and ignition power. Anybody the wiser? Car runs fine.
icrotech Ignitor Box to suite LT-10S ECU (Direct Fire)
Blown X4 & X6 boxes
We get several enquiries from guys who have blown their X4 or X6 igniter box. These igniter boxes DO NOT blow up for no reason and each and every box is tested before they go out the door.
If you have blown an igniter box the most common reasons for it to happen are……..
- Bad wiring or bad earths (the 2 black earth wires are very important & must be well grounded)
- Dwell Settings too high (with the Microtech Bosch coils 3.5 m/s is a good starting point.
- Voltage too high ( the higher the voltage the lower the dwell settings must be. With a 16 volt system the dwell setting should be lowered to around 2.75 m/s)
- Cranking the engine over with the battery charger connected (this will cause the car voltage to go as high as 21 volts and will damage the igniter immediately)
- Blown ignition coil (the ignition coil will short out internally and blow the igniter)
- Cranking the engine with the plug leads off (checking for spark with the plugs sitting on top of the valve cover without being grounded or doing a compression test with the plug leads swinging in the breeze. If the spark cannot go to ground through the spark plug it will take the easiest path which is usually back through the igniter box)
- Shorted wiring during installation
- Letting the box get wet
It is very important to make sure if you have blown an igniter that the problem has been found and eliminated before you plug another igniter in its place. The igniter has blown for a reason and will only happen again if the problem that caused it isn’t fixed.
He says its working fine.... why the ad for a new ignitor? The X4 can not be used with the stock coils.... they have built in ignitor so it would not be needed
Did some more digging and found a receipt for $899 in 2014 for PRO RX8 Ignition coil kit from a mob called PROMAZ in Melbourne VIC. Also checked the coils and they are Bosch. So roughly 7years and 50 000km old. Also found this link to PROMAZ and they are still selling something similar in this link Promaz smart coil kit
I thought my RX8 was pretty standard apart from the catback exhaust which as far as I am know just looks and sounds nice with minimal impact on performance. Seems I need to dig a bit deeper as I guess this bypasses ignition ECU settings and there may also be other changes to mapping. Also when I looked closely the new loom covering looked pretty crap and brittle and putting the controller in the fusebox attached using heat sensitive double sided tape is just wrong. The disconnected wire is because?
So thinking I want to go back to standard but unsure what to do. I am pretty good with car stuff and have a background in electronics including programming chips. Will obviously check in with PROMAZ. Adice?
They must have been really good to last that long. A simple ignition coil test can determine if they are still good. At the very least, inspect the spark plugs and replace if necessary. If the coils aren't good, you will get a code for it.
02-17-2021 | 07:56 AM
Found this device in fusebox
