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Discussion Starter #1
Hi guys,

Have recently just brought a R35 Black edition 2009 and have owned the car just over two weeks and keep having issues when I am putting my foot down.
Have searched for through a few of the posts as I have seen a few people with the same problem but just querying whether anyone has any other ideas to what it could be.

Basically when you put your foot down and get round the rev counter every now and again all the warning lights come up and the car jolts. Lights are ESP, ABS, Handbrake light and 4wd lights all come up on the dash. If you turn the car off and on again it resets itself and doesn't do it unless you put your foot down again.

Using me ECUTEK I managed to get the following fault codes:

C1162 - Park break switch #2 released circuit failure
C1193 - Speed wheel sensor RF input short circuit to ground
C1105 - Traction control disable lamp circuit short to battery
C1115 - ABS power relay output short circuit to battery

Following some of the post I have read about there being issues with the negative terminal of the battery I have removed that cleaned it and put it back on nice and tight but keep getting the same results.
If anyone has any advise on what it could be I would rather try a few simple things first before I have to weigh out loads of money 2 weeks after buying the car.

Appreciate and responses guys
 

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Discussion Starter #3
Yeah brought it privately....... not majorly concerned at the moment because it still drives fine.... so not like I'm without a car but just annoying..... worst case I will run it in to Kaizer motorsport and see if they can sort it
 

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D'you think he sold it knowing the issue?

Yeah I would it pop into Kaizer, get it sorted properly. Just a thought, has it got 4 decent tyres/similar tread depth?
 

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Discussion Starter #5
To be honest I think the bloke just buys them and sells them on and makes a little out of it.... looking at the history it has had this problem for a while as they replaced the ABS pump thinking this was the problem.... yeah all 4 tyres are near enough brand new.
 

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As above, what are your tyre sizes? differing rolling radius can cause an issue.

Also, check the brake fluid reservoir is on MAX. I know other nissans (350z and370z) if brake the fluid isn't full it brings up similar dash lights.
 

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Seems to be related to a wheel sensor, as that'll trigger the abs too.. as your in Essex, take it down to [email protected], he'll diagnose it.. don't think its a major issue, as your report it drives fine.
 

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Discussion Starter #8
Yeah I believe tyres are all ok.... will double check the brake fluid.... from other posts I have read it could be abs sensors or or some even the abs ring... yeah I'm planning on taking it down to Kaizer when I get time... didn't know how common this fault was
 

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Check brake fluid level and go outside now and come back with your tyre sizes front and rear
 

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Bingo.

Tyre sizes are way outside the prescribed 0.63% for the TC system.

The correct front tyre size for running rears of 305/30/20 should be 275/35/20

That'd be my educated guess.
 
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Your car throws warning lights related to the stability and traction control systems. Having the wrong sized tyres means the system is getting data inputs on wheel speed that don't make sense. It can't be sure whether there's a malfunction or not.

I've never heard of anyone running stock tyre size front and such large tyres rear. That tells me something.

Litchfields would put a 275/35/20 tyre up front which is a 1.37% difference to your size rears.

Like I say it's just an educated guess given the tyre size differences are not usual.
 

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Yep, deffo, way out, you can use a 265/35/20 with a 305/30/20 (cup2 sizes), but the mpss's are 275/35/20 & 305/30/20 (they don't make a 265 mpss xl).

Sly normally has some tyres in stock (new or used), and they will fit the oem rims too.
 

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Your rolling circumference difference is 3% when stock is 0.63% and the warnings occur when you boot it as your speed increases (and thus the readings get further out) and the ESP and TC systems use RPM and speed to calculate things such as wheel slip.

What tyre make are you running?! (He asks thinking they're gonna be rather rubbish!)
 

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Yep! Your front tyre is oem size, so your rear should be 285 35 20.
Your rear tyre diameter is 3% smaller than the front, so will be turning faster than the front. The sensors on the car will see this and think the rear wheels must be spinning to be going faster than the front so it is getting confused. It will effect the abs, traction control, and awd system, hence the lights.
Definitely the first thing to try.
 

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Discussion Starter #17
Ahhh it is starting to make sense now

Tyres are Michelin pilot super sports which I have been told are quiet good tyres

It's a shame as all 4 tyres are not far off brand new lol

What would you recommend changing the fronts to accommodate the rears or change the rears to OEM size?
 

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Change your fronts to 275/35/20
 

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Mpss are a great tyre!
It's up to you whether you change the front or rear.
As above oem size is 285 35 20 rear with your current front.
Or you could try a 275 front as mentioned above.
Oem size will make the speedo more accurate and be most forgiving on the drive train.
The other option will give you more grip being wider. What power level are you? As Mpss in stock size gives plenty of grip anyway if your stock or stage 1 or 2.
Which has got the most tread left on it?
 

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Discussion Starter #20
Yeah I'm not sure which have the most tread on them will have to crawl under and have a look....

Car has litchfield stage 1 and a print out of 620bhp which they have told me is possible out of a stage 1
 
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