gerardo247
New member
Let me preface this by saying I own a 126p EL with the electronic ignition (the one with the Nanoplex module, crankwheel sensor etc)
After already struggling with carburation, ignition and vacuum issues simultaneously, I now seem to have a problem with the ignition once more which might be related to the nanoplex ignition timing system.
Testing with a stroboscope, one coil/cable/cylinder gives a lower frequency spark than the other. When switching cables / coil position, the problem moves to the other cylinder. So it doesn't seem to be related to spark plugs or cables. I find this strange as this wasted spark ignition should in theory create a spark in both cylinders simultaneously and at the same frequency/strength, no?
The twin coil has been replaced and I get the same thing on both the old and the new. So either I have two faulty twin coil units or there's a problem further down the line.
Which then leads me to the nanoplex module - I heard this thing is pretty much unbreakable. But can that be tested?
A thing that often does break in these ignition modules is the crankwheel sensor. However does this sensor provide different outputs that regulate the spark in both leads differently? It would be my estimation that this is a single output for the Nanoplex to base the ignition timing on.
I'm a bit new at car stuff and terminology so if anything is unclear please let me know. Hope someone can be of help!
After already struggling with carburation, ignition and vacuum issues simultaneously, I now seem to have a problem with the ignition once more which might be related to the nanoplex ignition timing system.
Testing with a stroboscope, one coil/cable/cylinder gives a lower frequency spark than the other. When switching cables / coil position, the problem moves to the other cylinder. So it doesn't seem to be related to spark plugs or cables. I find this strange as this wasted spark ignition should in theory create a spark in both cylinders simultaneously and at the same frequency/strength, no?
The twin coil has been replaced and I get the same thing on both the old and the new. So either I have two faulty twin coil units or there's a problem further down the line.
Which then leads me to the nanoplex module - I heard this thing is pretty much unbreakable. But can that be tested?
A thing that often does break in these ignition modules is the crankwheel sensor. However does this sensor provide different outputs that regulate the spark in both leads differently? It would be my estimation that this is a single output for the Nanoplex to base the ignition timing on.
I'm a bit new at car stuff and terminology so if anything is unclear please let me know. Hope someone can be of help!
- Model
- Fiat 126p EL
- Year
- 1997
