[How to] Remove the ABS from a ST185

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Re: [How to] Remove the ABS from a ST185

Postby jonnyboygt4 » Thu Mar 25, 2010 5:34 pm

darthripley wrote:ABS was an option for 90-91 US models.
I have seen some CS/RC models without ABS, no system 10 & no sunroof.
All US '93 models came with ABS, leather, sunroof & system 10.
I'm unsure of '92 models - most seem to have ABS but I have seen only one without a sunroof.

Glad this write-up has helped people here also :)



well my gt4 is from japan, a 1991 with the 10 sound system and no sunroff there is very little mods done that i know of....so i would think that this is the way it left the factory.......I actually prefer the no abs....I feel like i have more control of how the car reacts...
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Re: [How to] Remove the ABS from a ST185

Postby timmey » Mon May 03, 2010 8:01 pm

Something to add:

"47315-20490" which is usually described as "FR Brake Tube" is no longer available from 1sttoyotaparts and toyotapartszone.com. I just ordered one and 1sttoyotaparts told me it is now discontinued by Toyota. One more (fourth) part to the salvage-from-junkyard list. Oh well. I'll see if be some miracle my local Toyota dealer has one kicking around. If they have more than one, let me know if you're looking for one.

Cheers,

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Re: [How to] Remove the ABS from a ST185

Postby darthripley » Tue May 04, 2010 5:14 am

Timmey,

that brake line 47315-20490 is the Line driver to 3-way (same on both ABS & w/o ABS, no need to remove or replace)

I will add it to the list of parts no longer available but you don't have to replace that one.
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Re: [How to] Remove the ABS from a ST185

Postby timmey » Tue May 04, 2010 10:18 pm

Oh great!

Thats excellent news. I just need to read your wonderful howto more carefully next time! I ordered one for no reason, good thing they had no stock.

Cheers,

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Re: [How to] Remove the ABS from a ST185

Postby darthripley » Wed May 05, 2010 1:05 am

^ Not a prob - it can be a little boring to read/confusing until you get into tearing the whole thing apart & out of there.
Just a good thing there was no stock so you didn't get stuck with an unnecessary line.
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Re: [How to] Remove the ABS from a ST185

Postby timmey » Tue May 11, 2010 12:57 am

Last question.

I am a bit confused about the proportion valve. When I look this part number ("47150-20140") up on online Toyota OEM parts dealers, I find that this proportion valve is for several models of Celica and Camry, all of which (at least on the results I found) are NOT AWD vehicles. I am unable to find any trace of AWD mentioned with this part number. For instance, when looked up on "https://www.metrotoyotapartsnow.com/oemtoyotaparts.html" it returns these 5 results, all with the same Part Number and price:

Under the "Mechanical Catalog" heading:
1) "Brakes - Hydraulic system - Pressure metering valve. Pressure metering valve, camry, w/o abs, 2wd, 6 cylinder 1991"
2) "Brakes - Hydraulic system - Pressure metering valve. Pressure metering valve, corolla, coupe, w/gts 1991"
3) "Brakes - Hydraulic system - Hydraulic system - Pressure metering valve. Pressure metering valve, camry, w/o anti-lock brakes, 2wd, 6 cylinder 1990"
4) "Brakes - Hydraulic system - Hydraulic system - Pressure metering valve. Pressure metering valve, corolla, coupe, w/gts 1990"

Under the"OEM Catalog" heading:
5) "VALVE ASSY, PROPORTI "

Again, all 5 parts have the same part number and price of "$168.82".

Are you sure this P/N is an AWD Non-ABS Proportion valve? If so, why is it exclusively coming up on 2WD models of Toyotas and has no mention of AWD? As I understand it, the proportion of a 2WD vs an AWD vehicle are worlds apart. Perhaps I am looking at the wrong part? As you see above, it wouldn't be a first :)!

Cheers!

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Re: [How to] Remove the ABS from a ST185

Postby darthripley » Tue May 11, 2010 1:47 am

Timmey,

At the time I bought my non ABS p-valve that was the correct part number.
I went to several different online toyota parts places & got the same info that you posted above.

However, I went to Lithia Toyota & found this when I looked up 1990 Celica:

Pressure metering valve, celica, w/turbo, w/o abs
90-93 MSRP$287.91 Your Price $225.02

When I looked up a 1990 Camry I found the same info under the 4wd (aka alltrac) & I know for a fact the Alltrac Camry's had no ABS & had the same p-valve as the non ABS ST185's.

As a last resort, you can always carefully remove the p-valve that is on your ABS brick and use that.
Etantshi did this & says that it is indeed the same p-valve as the non ABS one.

And you are correct about 2wd p-valves being different ... the part itself looks identical but inside there is a spring which controls bias & it is different from 2wd to 4wd especially on Celica's that had rear drums vs. rear discs.

I hope all this makes sense & sorry for the part number confusion. When I ordered mine I was told there were only 2 in the US so that may have something to do with part number changes.
You might want to contact ToyotaTodd as he can make sure you get the correct part number as well.

Good luck!
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Re: [How to] Remove the ABS from a ST185

Postby timmey » Tue May 11, 2010 2:02 am

Thanks a lot! I think that makes sense, actually.

I didn't realize they tuned the same part differently for different cars. I guess these sites just don't have them for AWD. I might just try my current one with under 90k on it. Could be worse.

Cheers!

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Re: [How to] Remove the ABS from a ST185

Postby darthripley » Tue May 11, 2010 4:22 am

^ I think you'll be ok with the one on your brick.
They really went up on that p-valve from when we bought it -- used to be like $160 brand new :doh:

Good luck & if you need any other help feel free to post or hit me up with a PM :)
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Re: [How to] Remove the ABS from a ST185

Postby zero06 » Wed May 12, 2010 10:26 pm

it can depend on a lot on where you live, for example on snowy roads ABS can be an advantage.


I get alot of snow up here, and abs (even new cars) is a BAD thing FTW
doesnt help on ice either.
just wet roads and having to slam your breaks at extreme OH sh*t moments
im on the fence on deleting mine. im almost 100% sure it saved my car and my life once
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Re: [How to] Remove the ABS from a ST185

Postby timmey » Wed Sep 29, 2010 12:45 am

Someone just asked me a really good question on celicatech: Will this ABS removal work on a RHD car? I cannot believe I didn't even think of this. :doh:

If I have to get non-ABS, RHD lines from a GT/GTS I think I give up.

Cheers!

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Re: [How to] Remove the ABS from a ST185

Postby darthripley » Wed Sep 29, 2010 1:01 am

That didn't even occur to me either Timmey, but I am pretty sure you would need to source the lines from a RHD non-ABS ST18x since the brake booster is on the opposite side of the car vs. LHD.
You'd have to look over on gt4oc & gt4dc.com to find someone breaking a car OR buy a flaring tool and make your own lines.

A quick tip for making your own lines: you can put sand inside the hard lines which will allow you to bend the lines without deforming them, then flare the ends to fit where necessary.
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Re: [How to] Remove the ABS from a ST185

Postby Pechin0351 » Sun Oct 10, 2010 7:20 pm

So I looked through this post and some of the other ABS deletes and did not find an answer so hopefully, some one else is having this problem and just not talking about it.
I removed my ABS parts a while ago, but left the idiot light on with an I dont care factor. Well now I started to care, and I removed the ABS computer from behind the rear pass speaker. But my idiot light is still on. I tried pulling the fuse as well, still an idiot light. I made sure that I unplugged the ABS brick when I removed it, yup still not where it used to be. So I am at a bit of a loss... Now is there a step that I missed that involves me resetting my main ECU, does it perhaps keep a memory of that dummy light. I realize it is a separate ECM that controls that light but perhaps the diagnosis systems are linked in that case? Thanks!
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Re: [How to] Remove the ABS from a ST185

Postby DudeMan » Fri Nov 12, 2010 4:48 pm

Has anyone actually deleted all the other ABS components?

Like the sensors on the brakes themselves, wires going to said sensors, wiring inside the cabin etc?

Just seems like a lot of extra junk you might as well get rid of while your at it.. At least in my case with a torn down car, easy access to everything at the moment.
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Re: [How to] Remove the ABS from a ST185

Postby darthripley » Fri Nov 12, 2010 6:01 pm

I'd like to but I haven't yet.

If you don't mind, please document everything you removed & where it is to add to the thread for others who may want to do it as well as the engine bay removal.
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