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Porsche Cayenne lpg problem

Posted: Fri Feb 20, 2015 6:44 pm
by gbratk
Hello,

I own Porsche Cayenne 4.5 V8 340hp converted on LPG.
System is AGCentrum Zenit pro OBD, with hanna injectors and two KME silver reducers. Car is actually running perfectly when even on full power.

The problem is starting car after sitting around 30 minutes, and it was previously running on lpg. It really cranking long time before it finally start, and sometimes I even have to crank it two times (it is automatic ignition lock) to get it running. If I drive it on petrol there is no problem starting at all. So problem is when I driving on LPG.
I changed reducers and injectors with new one, and still the same...

Does anyone know what could be problem?

Thank you.