Technical Rough idle on 1.2 8v 169A4

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Technical Rough idle on 1.2 8v 169A4

kpematop

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Sep 10, 2003
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Sofia, Bulgaria.
Hello,
I am owner of Lancia Ypsilon 1.2 8v Ecochic MY2012 EURO5B with factory installed LPG. The car is same to Panda 1.2 8v GPL 2012-2014.
I bought the car second hand with rough idle. I did overhaul of the engine, replaced lambda probe, map sensor, coolant temperature sensor. On gasoline rough idle is a little bit less, on LPG engine is not calm. Gasoline injectors gives 2.8ms, LPG gives 3.2ms and 1.15bar in the LPG rail. With preheated engine on idle running on gasoline map sensors shows 350-360mbar intake pressure, on LPG around 400-420. There is no vacuum leak, already checked. Is it possible that euro5b is like that ?

Regards
 
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