Took her out this afternoon for a blast up the A1, and all seemed to be well.

Untill some git in a Focus decided he'd just pull from the inside lane straight in front of me, toss**

Then I let an artic pull out into the second lane, and this guy got away. Finally got past the artic, mistake letting him out, and floored it to find this Focus. Reached 120 reasonable ok, but then wouldn't go any faster :confused: . It was on full boost, but just didnt want to go any faster at all. By this time I'd past the Focus anyway, and my turn off was fast approaching, so didnt get another chance to test it again. Also when I turned off, I noticed the red warning light with what looks like an exhurst box in it came on, but went out withing a few seconds.

 

Any ideas guys??

 

Thanks in advance.

 

Dave

have you still got the speed limiter on fitted to the imports??? i think they come in at 112mph dont they?? im sure an import owner will know

TBH Paul, that is what i suspected, but thought they came in lower than that, but could be wrong. Next thing is how do I remove it, and where is it?

 

Cheers

 

Dave

import, uk clocks, limited to 125mph..

Light is for the cats i think

mine used to come on at 118mph

is it runing on 6 ?

that warning light comes on if it has a problem

 

steve

if you still have the km clock??

it will top end to the 180 and then stutter (aprrox 133-115 mph)

the limiter is not an actual physical part, you buy the delimiter remove your clocks and fit it between the speedo wires and earths etc

your km clocks then revert to mph, ie 70 kph is 70 mph

costs about £65 and 45 mins to an hour, or if your not brave enough

most pleces charge about £90-95 fitted

is it runing on 6 ?

 

steve

 

 

I take it you meant six cylinders, if so the answer is yes, everything else seems ok. Apart from my starting problem, which I think I've traced down to the fuel regulator or the injectors. Which is that when left for, say overnight, it takes a while to get the furl preasure back up, but once it starts properly, it runs fine.

 

Dave

I'm sure the cat light is coming on cos your getting unburnt fuel in the exhaust where it's igniting and causing the cats to overheat.

 

Vijay

Thanks billy, just read your post

 

My speedo has mph as the large numbers around the outside, with kmh on the inside. But it reads in km's for the odometer, so i take it all that has been done to this one is the clock face has been changed then? :confused:

 

 

Dave

yes m8 sounds like just the clocks have been changed

so to be honest im not sure if that would completly delimit it?

i bought my delimiter from an import auction and it was pretty easy to fit

what do your clocks go to?? if your not reaching the max then id assume you should be ok to go further

Billy,

 

My clock reads upto 180 mph.

 

Dave

I'm sure the cat light is coming on cos your getting unburnt fuel in the exhaust where it's igniting and causing the cats to overheat.

 

Vijay

 

 

Thanks Vijay for that. :duffer:

 

Dave

http://www.zcentre.co.uk/performance/perf2/performance2.htm

 

steve

Cheers Steve :dance:

 

Dave

then i would say its ok

so sorry that doesnt help you with your original problem

as a couple have said if your reaching 120mph, its going above the limiter speed, so the cat lights could be connected, maybe the hard braking was just a blip, and hopefully next time you wont have to slow and all will be ok:)

TO make clear what I said earlier, I think they are limited to 112mph in Japan, but for some reason when UK clocks are fitted the limiter works at 125mph. I know of other Z the same as mine in this respect.

Buddy, speak to luke at the z centre. His number is 01159676356. He will help you ref the delimiter. He changed mine a few weeks ago. Somone had changed my my speedo clock but not the limiter.

cheers johno

And as has been said many times, there is a question over the Hicas not working correctly if you use an electronic de-limiter. Some say its OK, others say its not. I dont know.

Dave it does seem like the limiter is still on ,which is cutting back the top end but not cuting back the fuel at full throttle which would enable you to get the other side of 150mph easy if all was well , the unburnt fuel is getting pushed through the exhaust and is burning in the cats hence the cat temp sensor warning light,

 

Steve

Dave it does seem like the limiter is still on ,which is cutting back the top end but not cuting back the fuel at full throttle which would enable you to get the other side of 150mph easy if all was well , the unburnt fuel is getting pushed through the exhaust and is burning in the cats hence the cat temp sensor warning light,

 

Steve

 

Thanks m8, this seems the answer. Never floored it b4, due to other probs with it, so was a little surprised when this happened.

Also thank you to all you guys for responding to this and helping me out. :bow:

 

jonce - I've already got Lukes number in my phone, but thanks anyway, i will give him a call. i find him to be a top bloke, with loads of advice and knowledge. :dance: ( opsssss, sounds like I'm after somthing :x: )

 

Dave