well, the cat has no catalytic converters and the rear lambda sensor are deleted from the ECU as well
Next thing i`ll do is check the petrol injector but i thin if i had a leaking/bad petrol injector running on LPG bank 1 would`n run lean, am I right?
Another thing that might have happened is that i have done something wrong assembling the intake manifold after cleaning and lubricating it - i will definitely check it out opening the manifold once again and this time i will renew all vacuum hoses
ECU detects no single misfire no matter running on petrol/LPG.
ainarssems - that`s a good point, i have tested the fuel pressure only at idle. it should be 4 bars without the fuel regulator connected and 3,5 with put under vacuum as far as i know.