What would changing my ecu do?

I have a 1997 honda civic dx coupe automatic. I have a stock ecu in it. I also have a p2p ecu and a p28 ecu. What would happen of i were to swap them out. Would i have increase power. Or what would happen. And do i need anything speacial to swap?

2004 Honda Civic Heating and Cooling?

I have a question for anyone, including mechanics or mechanical engineers who are familiar with the heating and cooling system of a vehicle. So basically I will break down my experience into high speeds (freeway over 65mph) and low speeds (around 35-50mph).

At low speeds when I turn on my heat, nothing but air comes out and the needle slowly creeps up to read hot (H) in the panel. AC typically works but has been back and forth, sometimes it does and sometime it doesn't.

At high speeds when I turn on my heat, AC and heat typically works and the engine runs at normal temperature, until I get off of the freeway then it heats up and cools down again.

My fluids are full, thermostat is working, and there's no visible leak.
Timing belt and water pump are due for replacement.
Coolant hasn't been changed, car is at 140,000 miles.

My diagnosis is that since the water pump is due for a change, maybe its not working hard enough to pump the coolant through the system until enough centrifugal force is reached at high speeds from the timing belt.

Secondary diagnosis is that I have a clog somewhere in cooling system causing my vehicle to overheat because fluids are not reaching the radiator since I have never flushed the system.

Recently, a lot of steam (coolant) has been spitting out of the coolant overflow by the cap, indicating that the engine is running hot and the thermostat is activated via return hose to radiator, car runs hot regardless of an open thermostat.

Changing automatically transmission fluid?

I have a 97 honda civic with a 1.6L SOHC (D16Y7) and i want to know if it would be a good idea to replace the trans fluid. I bought the car with 135xxx miles and its currently at 141. The trans fluid is very dark. Nothing is wrong with the trans as far as i can tell. I want to replace it, i would be doing a drain and fill. Any thoughts on it?

2006 honda civic serpintine, a/c issues?

Ok so I have a 2006 honda civic ex. When I bought the car it came with a no A/C serpintine belt. Car runs perfectly fine with the no A/C serpintine belt on, so I said what the heck I miswell get the serpintine belt with A/C so I did and before I began to put it on I made sure to check the A/C clutch… It did move freely with the spin of my hand. So I began to install the serpintine belt with A/C after I finished I started the car and hit the a/c to on and max then the car started rpming up and down real low until it shUT off why is it doing this? After it shuts off there's a funny smell coming from the belt but when I put the no a/c serpintine belt back on car run perfect again why is this? If the clutch on the a/c compressor is moving freely doesn't that mean it's working I made sure I got the right belt routing down I just don't get it… It gets over 100 degrees out here where I live and I have children if anyone knows what this could possibly be please help thank you

My 87 honda civic DX randomly stalls?

Okay my step dad have me this piece of junk 87 honda civic DX and he didn't even look at car when it's messing up he told me try fuel filter since he just change girl pump so I changed fuel filter which still didn't work it stalls at random moments though like approaching a stop sign it'll just Die or mostly it stalls when I get gas like there's days it will stall and days it won't and I need to figure out what's wrong

What do i need to convert to vtec?

I have a 1997 honda civic coupe with the stock d16y7 motor. I wanna keep the block stock but want to switch the head to vtec. I have the vtec head with intake and all which is the d16y8 head vtec… Do i need anytging special? If there's a video of someone doing the swap please leave a link. Any help would be greatly appriciated.

Honda Civic or Nissan Tiida 2015?

I'm looking to buy a new car in a couple of weeks and need your valuable suggestions whether to buy civic or tiida in Dubai…

Wanna use it for longer periods, so civic or tiida is better interms of cost of ownership, reliability?

Wanting to Turbo my 1996 honda civic EX d16y8 1.6L?

Wanting to Turbo my 1996 honda civic EX d16y8 1.6L? - 1

Added (1). So i plan on wanting to turbo my Civic as seen above. So as of now everything is on stock interal and the engine is only at 84k miles. I'm about to get the timing belt replaced next week. And i've had the car for 2 and half years now and it runs good. And i'm looking to push about 6-8 psi. So i want to dump money into this car i'm 19 an i want to get experience with cars on this car before i try and safe for a more expensive car.

Added (2). and i'm looking to upgrade alot of stuff. So apart from getting a turbo my main question is what should i get on my car preferbly before my i put a turbo in to make my car withstand the turbo better. And you know i plan on gettin on the turbo every know and then but i'm not gonna rally it 24/7 because i would like to try and make it last a little longer. How long do you think it will last?