Hi all,
My QP Evo 3.2 has started to act up recently. It will go into a kind of limp mode when engine is all warmed up. Not sure if it's limp mode but it will suddenly start to run very uneven and not on all cylinders. There is also a strong smell of fuel and engine is very down on power. This will only happen when engine is up to operating temp - 85/90 dgr. When cold and up to operating temp it will run perfecty normal.
No warnings or check engine light either.
I suspected one of the O2 censors and disconnected them when problem appeared but no change. I then swapped the cam position sensors - no change. Last I swapped the upper crank sensor but no cure there either. I have not changed the lower crank sensor as this has to be done from under the car and I have no lift. I also tried a new throttle position potensiometer but there was no change.
Could it be one of the water temp sensors that is failing ? What other sensors could create this problem when reaching 80/90 dgr. ?
Regards,
Arvid
My QP Evo 3.2 has started to act up recently. It will go into a kind of limp mode when engine is all warmed up. Not sure if it's limp mode but it will suddenly start to run very uneven and not on all cylinders. There is also a strong smell of fuel and engine is very down on power. This will only happen when engine is up to operating temp - 85/90 dgr. When cold and up to operating temp it will run perfecty normal.
No warnings or check engine light either.
I suspected one of the O2 censors and disconnected them when problem appeared but no change. I then swapped the cam position sensors - no change. Last I swapped the upper crank sensor but no cure there either. I have not changed the lower crank sensor as this has to be done from under the car and I have no lift. I also tried a new throttle position potensiometer but there was no change.
Could it be one of the water temp sensors that is failing ? What other sensors could create this problem when reaching 80/90 dgr. ?
Regards,
Arvid