I have problem with my vectra c, x18xe. I took it two weeks ago, but the problem started last friday.
The car has Tartirini LPG injection system installed in Italy, right after the car was bought from the Opel store. Anyway, I have the following problem:
When I start the engine in the morning, the engine goes to 1200 r.p.m's for couple of seconds and extinguish alone. From 2nd or 3th time the engine keep working after pressing the gas pedal intensively for 10 seconds. Anyway, the pedal is not working everytime . It's possible to press the pedal 3-4 times before any reaction from the engine.
I also had problem with the exhaust gasses lamp and went to authorized OPEL service station. They replaced the following parts: lambda sonde, Ignition Coil, spark plugs. They also cleaned car's throttle, but no change with the the morning start, only the lamp was turned off. I drove the car back in the same service-station . They put new benzine nozzle to test, but wasn't from them. The problem remains.
Currently they are blaming the gasoline in the tank(May be it's old. I bought the car with half tank gasoline, but I am driving on LPG).They also blame the LPG injection system, but I am really sceptical about this, because the car is working 5 and a half years on LPG.
When the cars is on LPG it works perfectly. When the car is on gasoline it needs 10 minutes to warm up, before start working normaly. In these 10 minutes I am pressing the pedal a lot to feel any acceleration.
Can you give me any advise what I have to do? I am out of options any more