SimpleTrigger problem
Two cars with 4 cylinder simple trigger setups experience problems with stumbling in the 1500-2000rpm range.
First car specificiations:
- Firmware 1.1.78
- Simple trigger with 1GT101.
Second car specifications:
- Firmware 1.1.80
- Simple trigger with 1GT101.
I have posted a log and an idle triggerlog from one of the cars here:
Very noticable stumbles occur between 3.03 and 3.06s. I found the bad injector phase setup after taking the log but correcting it did not change anything.
What should we watch in the log ?
- We started benchtesting.
- we didn't notice anything noteworthy so far:
- injection length, ignition advance and dwell seems to be good so far.
- we're continuing testing.
I´ve also experienced this with a 4cyl Porsche 911 in Gävle running Simple Trigger,
spent a couple of hours driving on the road try to work things out but couldnt anything out of it.
It runs as the wind over 2000rpm´s.
Firmware 1.1.81 - Can probably post a log tonight.
Erik Englund.
Is that also with HALL-dirac filtering? vemscfg or vemslog ?
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We could reproduce the problem with invalid setup only:
- VR trigger (~50 usec pulses after LM1815)
- and HALL-dirac filtering enabled; Note that validate warned about it.
With proper HALL signal, max 24 teeth (and signal stable for min 25% after the chosen edge), we could not reproduce the missing spark. It behaved well in all tests so far.
Note2:
- If we disable hall-dirac filter in primary trigger settings the ignition seems good.
- Can you disable HALL-dirac filtering and see if the occasionally missing spark goes away ?
- what is the duty % of the primtrig HALL signal ? (eg. 20% high 80% low ? )
- Erik do you use Hall-dirac filter too?