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Yet another 4WS thread

Chassis/Brakes/Steering/Wheels discussion
MikeK
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Re: Yet another 4WS thread

Post by MikeK » Sat Jul 07, 2018 11:08 am

This has been a great thread to follow. Thanks for all the contributions, I've learned a lot from your experiences. This is eactly why I use this forum.

...and great news on your 4ws working. Nice touch on the closing credits song....

no0ne
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Post by no0ne » Mon Jul 16, 2018 4:06 pm

I dont think there is another thread like this on the internet regarding 4ws. This mofo should be pinned to the top forever 8-)

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Anzezaf
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Post by Anzezaf » Tue Jul 17, 2018 9:27 am

Huge thanks to anyone and everyone that helped me with this project :mrgreen:

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Anzezaf
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Post by Anzezaf » Sun Sep 09, 2018 7:04 pm

A small bump for this thread. I'm just gonna paste this link for the 4ws manual here. @no0ne I hope you dont mind ;)

5TH GEN 4WS MANUAL

https://drive.google.com/drive/folders/ ... 3pST1Z5VGM

no0ne
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Post by no0ne » Thu Sep 13, 2018 10:47 am

Yeah all good thats my link

RobDriver
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Post by RobDriver » Sat Sep 22, 2018 1:37 pm

My 4WS on my 2.2 Prelude is not working.
I just cannot zero the warning light........I do know how to as last year I got error code 24....then replaced the front main sensor and whoopie it all worked for a year.
I was driving down the motorway last month and the 4ws light popped up
Tried reset but it keeps flashing error code 20.....I replaced main sensor again and still no luck
I got a scope and tested all the outputs as per the manual
I get lovely square waves on A an B and also the Z gives 5v exactly when the steering wheel is at tdc
I also tested the output of the front sub sensor and confirmed it gives 0.9 volt when turned 1 way and then goes up to 4.5 volt when turned the other way.
All these tests were done on the pins of the ecu in the boot as described in the manual
I have soldered all the dry joints in the 4WS ECU
My steering alignment is perfect and i havent hit any curbes or potholes
So to me everything tests 100% ok
Ive ordered an ecu to try but doubt it will work
Any ideas guy?
5 Gen
Melton Mowbray

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Anzezaf
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Post by Anzezaf » Sat Sep 22, 2018 3:05 pm

I suspect it's the ECU, since everything else checks out. GJ on your side for all the diagnostics already done

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wurlycorner
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Post by wurlycorner » Mon Sep 24, 2018 12:35 pm

Merlin
Is it worth adding anything to the wiki on this?
(the 5g 4ws manual link maybe)?
I've wondered about making this thread a sticky in the forum but not sure if that's the best way to go... :think:

RobDriver
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Post by RobDriver » Thu Sep 27, 2018 8:16 pm

Update! I have installed the used ECU and whoopie it works...........i had no 4WS warning light and all was well for 12 miles......then the light came on again.
But I am able to zero the light so the system is working now as i was never able to reset the light with the old ecu.

I reckon i need to do a alignment zero calibration as the new ecu will have a different calibration point to my car

I will try on the weekend and let you know
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Melton Mowbray

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wurlycorner
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Post by wurlycorner » Fri Sep 28, 2018 10:46 am

Good news Rob - hope that works out.

Let us know!

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