Microtech LT10S help
Posted: Wed Jun 27, 2018 1:55 pm
Hey guys,
Does anyone have any experience with Microtech engine management? I know a lot of rotary guys use it. I tried to sign up to the forum at the microtech website, but there website just gives "500 - Internal server error". I know someone with a Peugeot rally car that has had a Microtech LT10S system for a number of years. He complains it has always been very hard to start and will flood. However once the engine is warm it will start pretty well. It has been previously dyno tuned. I've been looking at it on and off for months trying to resolve the issue (all I can say is the adjustments on this are very very crude compared to the delco 808).
It seems to crank over and fire occasionally. I've put the scope on it today and found a few things:
-Its firing the the same cylinder every 2nd cycle (4 revolutions)
-Injector pulse is constant
-Ignition output is constant
-Ignition timing jumps from 5 deg cranking to something like 18 degrees every time it fires. Cannot work out in microtech software why its doing this
-Injector pulse is exactly DOUBLE what the software says it is
Clearly something is not setup right. When it does get running it idles warm with 3-4mS injector pulse (on the software display) with the wideband say 14:1. I'm not sure if this is actually double that in reality. Cranking cold the software is saying 10.5ms (it was almost 20mS before I started playing around with it), but the scope proves its actually outputting 21ms (exactly double). If it was outputting 40ms before hand, no wonder it flooded every time he tried to start it cold.
Does anyone have any experience with Microtech engine management? I know a lot of rotary guys use it. I tried to sign up to the forum at the microtech website, but there website just gives "500 - Internal server error". I know someone with a Peugeot rally car that has had a Microtech LT10S system for a number of years. He complains it has always been very hard to start and will flood. However once the engine is warm it will start pretty well. It has been previously dyno tuned. I've been looking at it on and off for months trying to resolve the issue (all I can say is the adjustments on this are very very crude compared to the delco 808).
It seems to crank over and fire occasionally. I've put the scope on it today and found a few things:
-Its firing the the same cylinder every 2nd cycle (4 revolutions)
-Injector pulse is constant
-Ignition output is constant
-Ignition timing jumps from 5 deg cranking to something like 18 degrees every time it fires. Cannot work out in microtech software why its doing this
-Injector pulse is exactly DOUBLE what the software says it is
Clearly something is not setup right. When it does get running it idles warm with 3-4mS injector pulse (on the software display) with the wideband say 14:1. I'm not sure if this is actually double that in reality. Cranking cold the software is saying 10.5ms (it was almost 20mS before I started playing around with it), but the scope proves its actually outputting 21ms (exactly double). If it was outputting 40ms before hand, no wonder it flooded every time he tried to start it cold.