CAS ?

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Re: CAS ?

Postby Jon_B » Mon 15.12.2003, 15:23

Now we're on the subject of ElanScan, does anyone know where I could obtain the lead to connect to my laptop?  ElanScan seems such a valuable tool and the cost of a lead would easily be recovered.
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Re: CAS ?

Postby ESM » Mon 15.12.2003, 16:29

Re. interface sources, have you checked out my site? Its got some info on the subject. <br><br>As has already been stated - a 4000RPM limit is enforced in limp-home mode, however, the light should always be illuminated when this is happening. Does the ECU light come on ok when the ignition switched on but the engine has not been started and does it still flash code 12? If so then the ECU & light are apparently ok and limp-home mode isn't active. ElanScan logs would useful  but might eliminate more than they actively diagnose - the fact that no codes are being set implies that its a not a sensor problem. <br><br>I suggest you douse the HT leads with WD40 and test for improvements - if it gets any better buy some nice magencor replacements.<br><br>Alan
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Re: CAS ?

Postby Jon_B » Mon 15.12.2003, 16:43

Engine light does not come on whilst driving.<br>Lamp does work as it comes on with ignition.<br>No errors stored, code 12 flashes continuously.<br>I will try a new set of Magnecors and see what happens.  I didn't realize Halfords sold them!
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Re: CAS ?

Postby ESM » Mon 15.12.2003, 17:03

It does sound like you've got an ignition or injection problem of some sort. The HT leads have to be the most likely for the cause & Since you've got originals its worth replacing them anyway.<br><br>Alan
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Re: CAS ?

Postby M100 TWO » Mon 15.12.2003, 18:10

H Jon, my local halfords did not keep magnecor leads in stock I had to order only a couple of days to arrive.<br><br>John
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Re: CAS ?

Postby Doug » Tue 16.12.2003, 01:04

[quote author=stevo link=board=help;num=1070358609;start=15#15 date=12/15/03 at 03:29:26]remember your leads have been handleing millions of of pulses of high voltage for the best part of a decade. [/quote]<br>He means BILLIONS, not millions--unless you have mileage like RAC, in which case it is actually a few TRILLION!  :o
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Re: CAS ?

Postby Sy V » Tue 16.12.2003, 08:26

If you're ordering through Halfords, make sure you get the right rating of Magnecors.<br>The manufacturers recommend the 8.5mm (KV85-Red) leads for the SE and S2 as opposed to the 8.0mm (KV80-blue) leads for the Clemo/Norma.<br>That £56-odd price suggests the blue leads to me.
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Re: CAS ?

Postby Jon_B » Tue 16.12.2003, 12:30

Visited my local Halfords last night andwas told they can't order Magnecor leads as they are not one of their approved suppliers.  What a load of cobblers!  I'll try another location and if still no joy will purchase from SJS.  Although I'm still not convinced it's the leads that are causing the problem.  Car starts and runs fine up to 4000rpm but will not run under boost or over 4000rpm.  Also when you rev the engine from idle it now takes longer to return to idle.  Wierd.
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Re: CAS ?

Postby stevo » Tue 16.12.2003, 12:35

fingers crossed its just the leads and not a brain transplant. [smiley=headscratch.gif]
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Re: CAS ?

Postby M100 TWO » Tue 16.12.2003, 13:32

Hi Jon, with the engine running upto 4000 revs it does sound like the ECU has gone into get you home mode you say you have no codes coming up maybe the ECU has got into a loop try disconnecting the battery leave for a few minutes repower the ECU it takes a few miles for it to settle down they recommend using 4th gear and 2,500 revs if I remember correctly - see if this will cure your problem
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Re: CAS ?

Postby Jon_B » Tue 16.12.2003, 13:52

I've tried that.  Still no luck!!
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Re: CAS ?

Postby ESM » Tue 16.12.2003, 17:21

I reckon you need to get ElanScan on the job to get some solid evidence on what's happening, the fact that the problems start at 4000RPM does imply ECU intervention. However, if you're not seeing any boost that can't be caused by the ECU - below 0.4bar boost control is passively controlled by the wastegate capsule - you should  see some boost at high throttle openings below 4000RPM. If you don't check that the actuator is moving freely - the wastegate could be stuck open.<br><br>The only other thought I've had is to have a look at the CAS and check its well secured - could it could have moved and altered the timing? If possible check the timing, just to rule it out, in any case.<br><br>Alan
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Re: CAS ?

Postby M100 TWO » Mon 12.01.2004, 19:05

Hi Jon, Have you managed to sort the problem, if so could you please post the solution, I am very interested to see what caused it.<br><br>John
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Re: CAS ?

Postby Jon_B » Tue 13.01.2004, 15:41

Still no solution.  I have connected up ElanScan but can't get it to work with the engine running.  I took it to my local specialist last week and they couldn't get the Tech 1 tool to talk to the ECU, so were unable to find what was wrong.  They suggested it may be the ECU (gulp!).  It's in again tomorrow as they have a spare ECU.  If all's fine then I will know where the problem lies.<br>Jon
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Re: CAS ?

Postby timmo » Thu 20.01.2005, 11:26

whats happening now John?
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Re: CAS ?

Postby Enright » Tue 10.05.2005, 21:32

So what was the result?<br>It sounds suspiciously like the problem I've had, albeit a LOT more serious.<br>I'd really like to know how you sorted it out.
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Re: CAS ?

Postby Jon_B » Wed 11.05.2005, 09:43

This was an old problem I had a year and a half ago which just went away over night!  I suspected an intermittent sensor fault.  I have, however, had similar problems over the last couple of months (but even more serious) with the car not running at all.  Well the problem wasn't the CAS or the CTS or the O2 sensor or the leads or the plugs or the coil.  All have been replaced.  The MAT and MAP sensors have been tested and show the correct resistance readings so it's not those either.  Last option was ECU.  Have one on order from Lotus (£330) and should be picking it up tonight.  tswcowboy did have a spare ECU that I could have borrowed but I didn't want to use someone elses if I had a short somewhere that was destroying the ECU (this will afterall be the 3rd ECU this car had had!!)
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Re: CAS ?

Postby Enright » Wed 11.05.2005, 11:18

Damn - I won an ECU on eBay not long ago. It didn't solve my problem so I would have been happy to sell it again, for a LOT less than £330.<br><br>I'm sure it works fine (unless like you suspect with yours, your car's running has caused problems inside the ECU).
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