I have a 2000 Honda Accord Lx 4cyl. i didnt realize my car was non-abs. Went to autozone and ordered abs master cylinder(MC) and installed it into my car. everything fit perfectly. My brakes will still work, but sometimes i get less braking power or it does not respond fast enough. i've replaced my calipers, rotors, and break pads all at the same time as the MC. My question is, can the ABS MC cause this?

 

If your car has rear drums vs disc the MC may have a different bore size, larger for the rear disc car. What you may be feeling is having too large of an MC for the system. You press the pedal but due to the larger bore you cannot apply the correct amount of leverage. The pedal requires more force that you cannot apply with the same pedal ratio, and you will not be able to effectively stop the car as well.

So to answer your question, yes. An incorrect MC bore could cause braking problems. It would be best to replace the MC with the correct MC for your application.

 

Sorry for the thread jack but I have a question related to the Ops.

My old accord was non ABS and before I junked it, I took out the master cylinder which I had installed myself, since I did not want a fairly new part going to waste I removed it from the car.

My newer accord which I bought a few months back is ABS and I am have brake issues, I would like to use my old master cylinder from my old accord into my current one, so here is the question is this good idea?

I checked the part #'s, only the last 3 digits are different. Physically they look the same, the non ABS unit has both inputs for ABS brake line and regular brake line.
46100-SM4-A04 ('94 accord non abs)
46100-SM4-G54 ('95 accord ABS)

 

Hmm well, using Centrics website(parent company of Power Slot & Stop-Tech).
http://extranet.soleniuminc.com/centricparts/
1995 ACCORD ABS
130.40022 1" bore, RF PORT 10 X 1 INV, RR PORT 12 X 1 INV, STROKE 2.41"
1994 ACCORD NON ABS
130.40020 15/16" bore, RF PORT 10 X 1 INV, RR PORT 10 X 1 INV, STROKE 1.93"

So it looks like the MC will not bolt up to the lines, kind of idiot proofs it. Bore and stroke on the 95 ABS uses a larger bore and longer stroke, which will displace a larger volume of fluid. I would not try to interchange either one with the other, you will have too hard of a pedal or to soft of a pedal. Either will not allow correct operation of the system.

stran12
2000 Accord non ABS
130.40038 15/16" bore, RF PORT 10 X 1 INV, RR PORT 10 X 1 INV, STROKE .642"
2000 Accord ABS
130.40032 1" bore, RF PORT 10 X 1 INV, RR PORT 10 X 1 INV, STROKE .642"

So the bore is larger for ABS cars but otherwise the same, that would indicate you probably have a harder pedal that requires more foot pressure force to get the same amount of braking power as the smaller bore MC.

If I were you I would return the MC and get the correct 15/16" bore unit