Friday, 26 October 2012

Persona Brake Servo Upgrade

A few months ago, after months and months of being sick of the poor braking performance.. I finally decided to upgrade the brake pump to a dual-layer servo. I have never actually seen the comparison before but it's said that B-line and M-line does not come with a bigger servo to accommodate the heavy sedan.. it's using the servo from a Gen-2 1.3.

So the search began.. After some research, I found out that workshops either cut a hole/knock the strut tower part of the chassis to accommodate the larger servo or they did not do it.. This is mainly due to the servo that they source (EVO3, SR20) being too big in side.. After some research, I found out that the servos from Honda Vi-Rs had a smaller size but still dual layer.. So decided to go with it..
Side by side comparison of the stock servo and the dual layer servo..
But still have to take out the servo and the pump as separate and install it one by one.. tedious job!
Braking performance felt very good after that :)

One very weird thing is that the check-engine light kept coming on after that... it's on n off.. a simple test using OBD-II found out that it's the brake switch.. parts still haven't arrive, still monitoring..

Update 09/11/12
Finally, the check engine light problem have seemed to be solved. Was told that the polarity of the brake switch was causing the problem and so I switched the positions and after the 3rd start (1st and 2nd were quick ones, probably ECU haven't detect it), the CEL light is gone!
Update 10/11/12
CEL Light came up again :(

Update 01/22/13
Finally, the problem is solved. Turns out that the brake switch isn't adjusted nicely so when the brake is released, it will not fully touch the sensor. A simple adjustment of the sensor had solved it. Million thanks to Ben (comments as below) who solved the issue.
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24 comments:

  1. wesleygan8 November 2012 at 14:24

    Hi Ben, so far I have not been able to solve the problem. Have let the authorized SC to check and changed the brake switch but still it pops up. Perhaps its something stuck in the pedal (i have not gone down to check that). But so far I have not heard it from other people who upgraded so I think it's just a mistake during installation by my foreman.

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  2. wesleygan9 November 2012 at 02:58

    Hey, I just got a call and he told me the same thing! Wonder if you were the car that had problems after installation too? I have switched the two polarities and on the check engine light is gone. Million thanks!

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  3. wesleygan9 November 2012 at 03:52

    Yup. Found him through mudah.my. Nice guy. Didn't expect him to call me back regarding the issue. Yes I had it fixed in Bangi. I think that workshop does alot of persona.:)

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  4. wesleygan9 November 2012 at 04:35

    Seriously? I will take a drive later and see whether it happens or not..

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  5. wesleygan9 November 2012 at 08:05

    You are right. It came on after awhile of driving. Haih, but it's good to know that i'm not the only one. haha.

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  6. wesleygan9 November 2012 at 18:43

    Nope.. I have the OBD-II scanner with me so used it to read the code and disable the check engine light. The check engine light came on after a day when I fitted the dual layer servo actually. How about your case? what do you plan to do?

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  7. wesleygan10 November 2012 at 00:36

    Yup.. actually the service centre thought it's faulty and changed it for me. But after awhile the problem came back.. I do not really know how or where the brake switch is located actually. I kinda like the braking feel now. Very sad case if have to revert to stock....

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  8. wesleygan10 November 2012 at 17:16

    Maybe.. perhaps change back to stock first.. then see where is the problem, then only proceed to change. I did notice one of my LED at my rear brake lights being quite dim when the check engine light is on though. And speaking about going through the trouble of reinstalling the brake servo just puts me off. Haih. Unless the servo is free . hahhaa.

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  9. wesleygan10 November 2012 at 21:50

    Have to find the time to go.. I think will easily spend the whole day there. Ive been living with this problem for 2 months+ now. Sometimes get fedup but for me the braking is important though.... Resetting the ECU only avoids the problem for awhile until the ECU detects it again. Adoi. Ive not sent the car to let other workshops check though. Btw, can i have your email? so that in case i have any news i can contact you :)

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  10. wesleygan11 November 2012 at 01:06

    Alright man.. do update me on the status after you've reverted to stock too. Thanks!

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  11. wesleygan18 November 2012 at 03:04

    Yes.. I do remember that.. He adjusted it to make it back to normal. Perhaps that's the cause of the problem? The light's up again now after 2 days of sudden disappearance. I've emailed you my contact number :)

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  12. wesleygan18 November 2012 at 06:10

    Hmmm... I didn't think of that .. I'll bring it to my mech to check it tomorrow. Hopefully good news! And oh ya, whenever the CEL light comes up, I do notice one of my right rear brake light's LED being dim.. if there's no CEL then it's bright again, are you facing this too?

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  13. wesleygan18 November 2012 at 20:41

    My mech refused to check.. asked me to go for OBD scanning.. But i've already scanned it myself -.-

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  14. wesleygan20 November 2012 at 08:41

    It's my regular mech. Ive asked around and they all will ask me to go and check with OBD .. will need money if let them check, which i already know the prob.-.-

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  15. wesleygan28 November 2012 at 05:58

    Hi.. thanks for the feedback.. I think i will try to get the car back to the same mechanic and get him to adjust the brake switch. Did the mechanic at Bangi readjust the brake switch after the CEL came on? I did he did minor adjustments for mine for the brake threshold position to reduce the freeplay. Maybe that's causing it.

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  16. wesleygan29 November 2012 at 00:46

    Hmm.. i think i might go next wednesday around 2-3pm or the following Monday on the 9th .. Don't really have much known persona workshops around my place to i guess i'll head back and let them adjust it again..

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  17. wesleygan5 December 2012 at 04:17

    Bro.. I haven't been able to find time to go to the workshop. Will update you soon if successful..

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  18. wesleygan25 December 2012 at 20:13

    Wow! that's great to hear! Mine went off for 2 weeks and I thought it was over then it came back up again!
    Where is your mechanic located? I've been asking workshops around here but they all suggested me to either change the switch or take it back to proton. The switch has been warrantied before so i don't think that's the problem... Perhaps I can let your mech adjust ?:) About the power window, it happened to me 3 days after i got my car, did you send it back for warranty? I hear there's been one batch of regulators which is faulty..

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  19. wesleygan26 December 2012 at 04:47

    Okie, i'll try to look for the shop. Is it 'YP AUTO TECHNIQUE SDN. BHD.'? How much did it cost btw?
    Whoa, 3 weeks? Then what will happen to your car? Did they set it back up? Really disappointing service from proton.

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  20. wesleygan21 January 2013 at 22:45

    Hi Ben! Just came back from the shop. Finally the problem is gone.. He had adjusted to let it pop up so that the brake switch will sense the brake.. Took me awhile to find the shop but finally got it done =) Thanks very much! He's a nice champ too.

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  21. wesleygan23 January 2013 at 01:20

    Definitely! I really did feel very very satisfied with the car for the first time after I had it done. Kudos to YP Auto, wonderful thing just a simply adjustment can do. And million thanks to you bro!

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  22. ~FenDi~9 July 2013 at 00:19

    hi guys. can u share your virs servo type?. i want to change the servo too. can share with picture ..

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    Replies
    1. Roge22 October 2013 at 20:12

      Hi, I've installed the honda ek virs servo into my wira. u see on this link: http://www.mudah.my/Master+brake+pump+servo+double+layer+civic+EK+VIRS-22724777.htm

      cheers.

      Delete
  23. Unknown23 April 2017 at 20:45

    plz can you send a photo after upgrade servo pump of your car

    ReplyDelete

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