First, the OP is not from the US (Spelling!!), and according to Tire Guides, that vehicle was not sold in the US (1.4L)
Further, that tire size (175/65R14) was the never on a Honda Civic sold in the US (according to Tire Guides.).
So we don’t know what the vehicle tire placard says for OE tire size and pressure.
According to Tire Guides, all 2000 Honda Civics (US versions) specified a P185/65R14 at 30/29 psi (front/rear) except for the Si Coupe which specified a 195/55R15 at 35/33.
The tire size quoted is SMALLER than what is specified on the vehicle tire placard. Smaller both in diameter AND load carrying capacity. That means the inflation pressure listed on the placard is NOT appropriate for the smaller size. Using that pressure MIGHT lead to a tire failure!
Doing the math: To carry the same load a P195/55R15 does at 35 psi, a P195/50R15 needs to be inflated to [[drumroll]] 41 psi! That means the P195/50R15 needs to be an XL (Extra Load)
And according to Tire Rack, the only 195/50R15 available in an XL is a Yokohama Advan A052 - an extreme performance summer tire. I’ll bet the OP doesn’t have an XL!!
And - NO!! - inflating an SL tire to 41 psi will NOT allow the tire to survive the additional load. The tire has to be built to withstand BOTH the pressure and the load.
So, my advice to the OP is to check his vehicle tire placard to see if the info I listed above is correct. If it is, I suggest the OP get the proper size tire. Otherwise there may be a tragedy in the future.