QUOTE(kulaan @ Mar 28 2008, 09:50 AM)
did u try to tunning it?? maybe can help ur problem...
Havent tune the car (don't think that prev owner did any tuning) ... Now waiting for salary to go and do tuning

... People has been quoting me 200 for meca-tune, using experiences instead of computer

... any cheaper recommendations?
P/S: using auto tranmission

QUOTE(rcracer @ Mar 28 2008, 10:41 AM)
If the g/box downshift and you don't step on the gas pedal, the engine is not using anymore fuel than idling, in fact the ECU turns off the injectors. It is more obvious in a manual car because when you step on the clutch you can actually see the rpm will drop below idling and the ECU will restart the engine by firing the injectors. So engine braking doesn't use fuel at all actually.
But when it downshift, the RPM shoot to 3k++ , doesnt eat petrol ?

...
QUOTE(S4PHTT @ Mar 28 2008, 10:44 AM)
Dovienya,
I think although Persona comes with a better TCU, it will still downshift like Gen2...The better TCU is primarily used to counter the Campro's torque dip and provide a better drivability...So, i think not necessary to change the Persona TCU but i could be wrong though as i've never driven a Persona...haha...
As for the downshift, i think it depends on your speed and the pressure applied on your accelarator...When the car detects even a slightest slope, the gearbox will downshift a gear...so, when it downshifts on a slope, just step harder to increase your speed (if it's safe to go faster) and it will upshift.
Normally if you travel more than 90/100 km/h on the top gear and applying a constant pressure on the accelerator while on the slope, it will not downshift unless you release and if the car slows down. Well, mine normally shoots up 3k++ rpm but not 5k++ rpm, haha...
Well, this is what i experience with my car and my FC is around 0.19-0.20 cents/km and i seldom drive hard...
Shazmn,
Nope, mine is just the normal M-line model. I think it has something to do with my Anti Theft System installed by my SA.

Just by downshift-ing, my RPM jump to 3k++, sometime until 4k .. if i press petrol, it doesnt upshift

only make my RPM jumps to 5k++. Like this, my car should eat more fuel... But

when reach bottom and it upshift, see alot of powah

.. but have to slow down cause cutting into highway

Thanks for the updates
This post has been edited by Dovienya: Mar 28 2008, 12:48 PM