- Mon Apr 15, 2024 6:41 pm
#67959
Hi folks,
I hope anybody has an idea on this; I'm stuck
I'm running a DIY-EFI Core4 on my 1978 VW Campervan (2 Liter aircooled Boxer engine). Injection mechanics is all stock VW, Ignition and timing wheel is basic distributor with a single coil. The distributer has a Hall Effect Sensor included with even distribution (it's actually from a 1600i Beetle), My MSQ is attached. FW version is 2024-02
Effect: Above ~1.000 rpm the ignition angle on the engine is twice the value of the MAP. So say I do have 20 degrees BTDC in TunerStudio in the Map, I can see 40° BTDC with the timing light . When setting 30 degrees in the MAP, in reality it is 60 degrees with the timing light, which is of course well beyond healthy.
For the time being if have hence divided all map values by 2. So if I want to have 20 degrees on the engine, I'll set the map to 10 degrees. With that, Engines is running smooth with super stable ignition timing
Any idea what's going on here?
I hope anybody has an idea on this; I'm stuck
I'm running a DIY-EFI Core4 on my 1978 VW Campervan (2 Liter aircooled Boxer engine). Injection mechanics is all stock VW, Ignition and timing wheel is basic distributor with a single coil. The distributer has a Hall Effect Sensor included with even distribution (it's actually from a 1600i Beetle), My MSQ is attached. FW version is 2024-02
Effect: Above ~1.000 rpm the ignition angle on the engine is twice the value of the MAP. So say I do have 20 degrees BTDC in TunerStudio in the Map, I can see 40° BTDC with the timing light . When setting 30 degrees in the MAP, in reality it is 60 degrees with the timing light, which is of course well beyond healthy.
For the time being if have hence divided all map values by 2. So if I want to have 20 degrees on the engine, I'll set the map to 10 degrees. With that, Engines is running smooth with super stable ignition timing
Any idea what's going on here?
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