loss of power once engine is warmed up

2003 RENAULT MEGANE
68,000 MILES • 1.4L • 4 CYL • FWD • MANUAL
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W4RN3R
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  • 1 POST
car starts and run ok until engine has warmed up, then i get major loss of power engine still runs but no revs when gas pedal is pressed down, i have to turn engine off, wait about 30 seconds then restart engine and car runs ok again for about 1 to 2 mins.

I have removed and cleaned the camshaft sensor and i have replaced the pre cat lambda(o2) sensor, should i also replace the post cat lambda sensor as well? or the coil packs, its such a tricky problem to pin down and repair
Jun 13, 2014 at 10:21 AM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
To be honest, I'm not too familiar with this vehicle. We don't have them in N. America. However, some basic principals apply to all cars.

Have you had the computer scanned to determine if there are any trouble codes? Have you checked fuel pump pressure to make sure it is within the manufacturer's specs? Have you confirmed that the catalytic converter isn't plugging? As far as the O2 sensors, are you using a lot of fuel or seeing any black or white smoke from the exhaust?
Jun 13, 2014 at 8:21 PM