See first of all i would like to tell u that this is possibly to achieve a 20 to 30% of increase in your computer system. step1: remove the temp files. (go to run, type %temp% and press enter,you will get a folder with lot of files in it. try deleting all the files by pressing ctrl+a and shift+del). some files may not get deleted,leave them or skip it from getting deleted. step 2: remove prefetch files: (go to run,type prefetch and press enter, you will get a folder with lot of files in it with the extension .pf, delete all the files by pressing ctrl+a and shift+del). step 3: removing the recently used files list: (go to run and type recent and press enter and delete all the files in that folder by pressing ctrl+a and shift+del ). most important step 4: right click on (mycomputer) in the desktop and select properties, select advanced tab, in the performance click on settings,you will get a dialog box, select advanced tab, and click on the change button. you will get yet another dialog box. click on c:[...] and click on the custom size radio button. see the maximum size and give edit the initial size to a number near to the maximum number and press set button. click on d:[...]and click on the system managed size radio button. click on the set button. use the above given step to other drives such as e:,f: etc. after setting all the virtual file size, click on ok.-> apply-> ok->ok, the setting of the virtual files will take effect after your restart your computer. restart your computer and enjoy of about 20% increase in the speed.
Not telling us what brand, model and OS off the phone does not help, not telling us what model camera you have only increases the difficulty to answer this.
Please give more details, included what you want to achieve, why, (because you saw it in a manual, or just because you would like it and you are not sure it is possible) and what you already tried.
You can read what the ECTS is telling your computer with a scanner. (It will read in degrees) If this is bad, sometimes it will read -40 degrees and cause the system to add more fuel, which may be you issue. Also, you can ohm out your spark plug wires to verify if they are all equal.
there is an ambient temp. sensor in the intake air ducting, if its a small round two wire plug you can unplug it and the computer will think its -40C. You will set a code when you do this, but should go away after you plug it back in.
Depending on the engine you could have a cracked mainshaft in your distributor which is quite common, unfortunately most cracks are on the underside of the shaft which requires removing the distributor.