Quote Originally Posted by eikichi View Post
I was trying to overtake a van last night and to my surprise, my car was having a difficult time overtaking it and to think I was only going at 40 kph. I later realized that my car can barely go past 2500 rpm. I tried it on gas and revved up to 4k rpm and everything was fine. When I switched back to lpg and revved it above 3000 rpm, the engine seems to be limited to below 2200 rpm. The engine sounded as if it was choking or similar to that when you try to flood the carb with gas and it was running rough. What could be the culprit here? My car is a Corolla with a venturi kit.
SGI type kit? I have similar issues when it's really cold out or when I've been sitting in traffic too long. i think the kit gets too cold and it affects power delivery. But whatever you find out, please share the solution with us. Changed my coil and retuned... helped a lot, but it still occurs from time to time.