Zavoli Alisei momentarily cutting out / switcing to petrol on moderate acceleraton

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LPGC
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Re: Zavoli Alisei momentarily cutting out / switcing to petrol on moderate acceleraton

#21 Post by LPGC » Sun Jun 21, 2020 9:13 pm

The weak setting may have improved things.

By hiccup do you mean interface connection problems, rpm detection problems and/or drive-ability problems? Connection problems and rpm detection problems can seem to come and go on these systems and rpm detection problems can cause drive-ability problems.

It may be a bit early to feel relieved of hiccups, hopefully not!

Misfires can also cause hiccups. If the mixture is too rich you're likely to get a hiccup and by entering a lower reference pressure in software you'll have effectively leaned the mixture a little. A leaner mixture also implies a lower ginj, connection issues generally occur at high ginj's.

Pleased to read your promising results.
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danci1973
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Re: Zavoli Alisei momentarily cutting out / switcing to petrol on moderate acceleraton

#22 Post by danci1973 » Sun Jun 21, 2020 9:17 pm

Day 2 of 'no hiccop'. I did some casual driving over the day and then a 'dedicated test drive' of about 100 kilometers...

I'm not popping the champagne just yet, but I will put one in the cooler. :D

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Re: Zavoli Alisei momentarily cutting out / switcing to petrol on moderate acceleraton

#23 Post by LPGC » Sun Jun 21, 2020 9:29 pm

Very good!

Did you make any changes to extra injection filtering etc?
Full time LPG installer
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2 miles A1, 8 miles M62,
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danci1973
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Re: Zavoli Alisei momentarily cutting out / switcing to petrol on moderate acceleraton

#24 Post by danci1973 » Sun Jun 21, 2020 10:02 pm

LPGC wrote:
Sun Jun 21, 2020 9:13 pm
By hiccup do you mean interface connection problems, rpm detection problems and/or drive-ability problems? Connection problems and rpm detection problems can seem to come and go on these systems and rpm detection problems can cause drive-ability problems.
I meant the initial problem of LPG momentarily switching off / to petrol. The laptop to ECU connetion did occur once (I think).
It may be a bit early to feel relieved of hiccups, hopefully not!

Misfires can also cause hiccups. If the mixture is too rich you're likely to get a hiccup and by entering a lower reference pressure in software you'll have effectively leaned the mixture a little. A leaner mixture also implies a lower ginj, connection issues generally occur at high ginj's.

Pleased to read your promising results.
I will try to improve the map a little, but will need a helping hand for that, so that's coming some time in the future.



LPGC wrote:
Sun Jun 21, 2020 9:29 pm
Very good!

Did you make any changes to extra injection filtering etc?
Compared to the initial setup (from the installer), I probably did - I did experiment with that setting, but I didn't record every single change I made. I believe the slider was initially fully to the left whereas I've set it 3 places to the right.

But if you meant from my last report on Thursday - no, the only change I made was the 'Type of revolution signal' -> 'Weak' (and gas pressure from 1.5 to 1.4 bar).

danci1973
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Re: Zavoli Alisei momentarily cutting out / switcing to petrol on moderate acceleraton

#25 Post by danci1973 » Fri Jun 26, 2020 9:28 pm

Well, it's been a couple of days and I've put about 1500 km on the car without any (LPG related) issue whatsoever. I guess I'm ready to call it 'a success' and pop that proverbial champagne... :)

Thank you very much for your help, Simon, it's been very valuable.

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Re: Zavoli Alisei momentarily cutting out / switcing to petrol on moderate acceleraton

#26 Post by LPGC » Mon Jun 29, 2020 8:03 am

You're welcome
Full time LPG installer
Servicing / Diagnostics / Repairs to all systems / DIY conversion kits supplied with thorough tech support
Mid Yorkshire
2 miles A1, 8 miles M62,
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07816237240

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