Removed the ABS from the car, but it still feels like it cuts in??

[Daniel]

A 172 (mk2 ph2) that has no ABS Sensors or rings. (Removed)

Under hard braking the pedal gives the feedback of ABS cutting in.

Now I'm not too sure if this is actually ABS, or another fault, but it is deffinately coming from the brake pedal.

Can anyone shed any light??

Ta.

 

[TheEvilGiraffe]

Sympathy-ABS ?

Mine got lonely last week as I didn't drive it for a few days, and it set the alarm off a few times to let me know it was still there.

Been fine since I drove it again.

But to answer your question ...

Can anyone shed any light??

No.

 

[Jay Payne]

Warped discs?

 

[Neal 182]

Warped discs?

Sounds like it to me as well

 

[Munson]

Grooved discs? Mine grumble like a motherfucker. It doesn't feel anything like ABS though so I'll shut up.

 

[Jamie]

How much does it all weigh? Very interested about that. Did you remove the central control box and put in a new master cylinder and brake pipes?

 

[cliobritt]

road car? make sure to tell insurers mate.

 

[Daniel]

Sorry, need to clarify a few things...

Its not my car, its a mates track-only car. He removed the Sensors and rings when he rebuilt all the brakes and shafts.

Its deffinately not warped discs. Its a proper 'thump thump' under the feet.

 

[Fred@BTM]

did he remove the pump? is it the car that's now in my workshop per chance? (black 172 with a dashboard that looks like an xmas tree?)

 

[Daniel]

LOL! No mate its not. That one didn't do it though, and its had the same treatment.

(I've driven both on track back to back)

 

[Tom85]

i know the exact problem, i have had it too, be it on a 1.2 8v, when modifying certain things. it feels like the abs trying to work, but infact it does not at all. it does reduce the braking efficiency of the vehicle at lower speeds though
as far as i understand (which may not be correct) it cannot be disabled without changing some ecu settings or having a 172cup wiring loom or some otherways around it.

 

[Fred@BTM]

you have to remove the pump, no signal = 50/50 all round as a default = death

 

[pug_92]

you have to remove the pump, no signal = 50/50 all round as a default = death

loads of people say this but, my abs is out of order atm, i get the pedal vibrations too. but the brakes still work fine hasn't locked up a rear wheel, even in the snow last week.

or is this someting that happens overtime?

 

[Fred@BTM]

the bias is controlled by the pump, my car was stripped out completley when i tried it, a car with full interior maybe different with a bit of weight over the rear

 

[pug_92]

mines stripped out aswel, i'm gonna do braided lines from master cylinder to wheels and put a manual bias valve in before i visit the ring in july.

which master cylinder should i use? oem 172 cup or just keep the standard ph1?

 

[Fred@BTM]

i've got a 1.2 16V twin outlet one on mine, does the job for me!

 

[pug_92]

cool cheers