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Hi folks, I own a Vitz 1.0L (1KR-FE) car. I'm looking for options to increase the initial throttle response - and thought whether swapping the throttle body for a larger one, possibly the throttle body from either Vitz 1NR-FE (1.3L) or 1NZ-FE (1.5L) - would make any difference. The stock throttle body inlet diameter is 38 mm as I found. When swapping, I suppose matching the larger throttle body outlet to the intake manifold would need to be sorted, but I guess a matching plate (starting from the new throttle body diameter to gradually reduce to fit to the intake manifold) would do the trick. In addition, will be coupling this with a CAI. My questions are: Anyone who has attempted the same here, who can share their experience? Could this give a improvement in the throttle response? Or is it not worth it? Thank you.

My corolla 110 suddenly had rpm around 1500 and check engine light is on..I think error code is 33 and fault in map sensor..can i repair or replace it? what is the price range?any Suggestions

Hi Members, This might be a really noob question but as I have ziff knowledge on engines and engine components. help me out here. Below is an image of a Perodua Kelisa Engine. What i want to know is What is the port on the throttle body that I have higlighted in the image? What is it's function? I checked online and in this immage this nozzle is exposed : but on this youtube video and another image (thanks @Sampath Gunasekara for this ) there is a tube attached to this port/nozzle/valve which i see missing in the vehicle in question. What is the significance of this? Is it a vacuum line? Should a tube be connected to it ? Thanks in advance. Cheers.