Well my car its a Pontiac Sunfire 2002 2.2L, he start perfectly, no missfire, A/C Cool, very quiet, fan work, no overheat, no check engine light and run perfect. But the problem is when it run around 20 to 30 minutes it start to losse power, and when I step on the accelerator it doesn't accelarate but the engine keep running, if I try to step on it more harder the engine will shut down, when this happen I start again everything run normal but about 20 minutes later the problem its till happen again !
I've checked the fuel tank and the pump. OK
I've change the fuel filter. OK
I've change the spark plus. OK
The temperature of the engine is normal. OK
The only thing I don't tounch is the fuel injection system because I don't have the tool and machine for it.
Can someone tell me what its the problem?
What is the more cheaped way to fix it?
I'm apology, my english not good !
have the same problem?
Tuesday, March 29th, 2011 AT 10:03 PM