Tomiam

Thanks Geoff! It did a day of sprinting at Blyton Park without any issues, probably because it was foot to the floor driving. Then on the way home it travelled for an hour with issues, I filled up with fuel and within 2 minutes we were on the hard shoulder of the M1. Disconnected the lambda sensor and the issue went away so Im pretty confident now that the problem lies wthin that area Had a quick look at the plug which connects to the lambda sensor again this morning and despite my best efforts at cleaning it, it still looks pretty shitty. :( The male connector (on the lambda lead) is pretty clean. Its the female connector on the loom side which looks rubbish. I shall have to source a replacement one. I've got a week or so until I need to use her again so will do exactly as you've suggested and go through all connectors very carefully and take my time. Thank you all once again. :)

Just spent a couple of hours in the travel lodge car park working on her. Bloke with a seemingly good knowledge of car electrics happened to walk past and help. Lambda sensor is apparently fine but we did find more corrosion on the female connector. Cleaned it. Seems OK. ... but then it seemed OK last time too. Will update in a day or so. Your help is genuinely appreciated. :) Thank uou

And... bollox. Problem is back. An hours worth of driving was fun and then going up motorway in 6th and it started spluttering and losing power again. I had a complete set of new spark plugs on me. Changed them. No better. Disconnected lambda sensor. It's gone away.

I've just had a slightly different issue, but part of it was that my engine would die when left idiling. I found there was a ton of corrosion on the connector between lambda sensor and loom. I cleaned it, engine now runs fine. That may / may not help, but thought I'd post my experience. HTH :)

Thank you both very much. As a result of the info that Martyn said about this being a common problem with R400D's I went a googling and searched these forums for stuff related to ecu mapping + R400D engine problems etc. I found a thread in which a chap had a similar issue and someone said "lambda sensor". So I've jacked the car up, got underneath and unclipped the wire etc. The connectors between the sensor and loom were completely covered in a green residue. Think of the type of stuff you get on a leaking battery and you're not far off. I cleaned them up and reconnected and it appears... to be perfectly fine. When I go to start the engine it seems to be more urgent, starting on the push button only. Whereas I had to blip the throttle to get it to start before. Its not dying when left idiling once the car has warmed up. Which it did before. Im unsure if its even possible for the lambda sensor to effect this, but my car has never started on the push button alone and after cleaning those contacts up, it now does every time. I've just taken it out for a 20 min drive without any issues at all. Left it alone for 3 hours and then drove it home. Zero issues. Engine definately feels more responsive and is reacting well to throttle changes. On the subject of spark plugs. They were a medium grey. Im also picking up a new set of plugs tomorrow morning from Williams Automobiles as a secondary precaution. So thank you both once again. Here is hoping that its not just a temporary fault and its actually been fixed. :)

HI Martyn, Thanks for the info. I've only had it for about 4 months so havent gotten anyone to give it a service yet. Its had an MoT at Millwood and its now booked into Williams Automobiles for a rear damper replacement in a couple of weeks though. I have no idea on the ECU as to what map its got. I suspect its not got the latest as the previous owner didnt appear to do much with it for the past 3 years or so. Its got roller barrel throttle bodies, I dont know if this means it couldnt have the new R400D map or not? Also being mechanically unknowledgable... if the battery was disconnected, would the ecu lose the latest map and have to relearn everything? Sorry.. since getting the Seven Im learning fast, but there are gaps in my knowledge for sure. Only I disconnected the battery a while ago to clean up the earth lead on it. Dont know if thats related or not. If I got Caterham to email me the map is there a simple way to update it myself or is it better to have it done by a garage, ie: Williams Automobiles in this case.

Oh and at idle at will just drop the revs and die after a while.

Odd problem which started about a week ago. R400 duratec with roller barrel throttle bodies. It starts fine but then as you drive at low revs the engine can splutter and start to die. Push down clutch, give it a blip of revs, release clutch and it will be fine. It happens at low revs , anything less than about 2500 The weird thing is that it clears itself up with 15 min or so of driving In that manner. If i drive at 3000 rpm or above its fine but that means I'm either accelerating reasonably quick on a normal road or its noisy. I've driven it all day at Oulton Park without any issues. Went to drive out of the pits on way home and it did it again. Spluttering and close to the engine dying. Within 15 min or so it was cleared up. engine was warm when we started. It's almost like the ecu learns what it needs to do it low rpm driving and then forgets it when the engine is turned off. I've checked the plugs and ht leads and they seem OK. Two plugs have a bit of rust around the middle but tops and bottoms are fine. I've cleaned them up and wd40 on connectors. Any advice very welcomed. I'm not the most mechanically knowledgeable and this has me stumped.

Had a great blast chasing & being chased by someone in a 620r. Top bloke whoever it was, sorry I didnt get your name. He went past, then I went past, then he went past... then my passenger told me to calm down because I was getting too excited LOL. Video from my PoV:

Top day. I was a little worried about how slippery the track was after the sighting laps. Losing the back end at such low speed was a little unnerving. Had a fantastic day and got to stretch the legs of my R400 very nicely as well as meet some new folks. Thank you very much Andy! Much appreciated. :D

Arrived at our b&b. Brought the aero screen with me which got a few looks.as my son and I walked in.. . Looking forward to tomorrow. :)

I got around to installing the ones smt recommended. Perfect! No blur no wobble just a clear view :) Combined with the rear view I mentioned above motorways should be a lot less stressful :)

Exactly the same problem for me. At 6ft 3 I have the seat right back too. Filed a bit off the mirror housing did the trick :)

Havent yet fitted the wing mirrors, they are here, but I just havent had the time. However.. I have replaced the rear view mirror in an attempt to get better rear / side viewing. My brother in law (disabled from the neck down) does fair bit of solo sailing (yes.. solo.. balls of steel!) and he uses a rear view mirror to keep an eye on the competitors behind him. Mirror he uses is a Riderscan. Normally used on motorbikes but apparently very good. Having seen his, I coughed up the reddies and mine arrived today. Fitted it but havent driven with it yet. So far, VERY impressed. Might as well do away with the side mirrors as it gives a full 180deg view from sides to the back. Its lightweight, and easily installed with 3M sticky pads which appear to be very strong. Biggest pain in the arse was getting my old rear view mirror off. Best way I found is to bend it back as much as you dare and then slide a piece of string behind. Saw it back n forth to cut through the adhesive pad on the back. It took me about 10 mins of 'sawing' with bits of string snapping before it was enough to prise it off. Still.. zero risk of damage to the screen :) Hope this helps someone as Ive gained a lot of information since joining here and it'd be nice to share something back. :) Photo above shows how wide the mirror viewing angle is. The circled area on the mirror is the poster to the left! You can see all of the tops of the side doors in the mirror. Zero blind spots. :)

Cheers. I got a pack from screw fix. Happened to have an m6 tap/die kit in work which I've borrowed. :)

As promised. Im reporting back. Have now used the Seven in the rain. Light drizzle for about 10 mins. No marks on the wings at all. Not even a tiny iddy biddy white spot. Zero, zilch, nadda! ;) Ive included some links to photos of the before / after spraying. Before: http://tinyurl.com/o23rrzc After: http://tinyurl.com/o8va8t3 MIrrors done too: http://tinyurl.com/ojskcbv

Thank you! :)

I've purchased the same mirrors as sm25t suggested. Having vibration less mirrors is more important to me than any issues that the door won't open beyond a certain point as I'll be doing a fair bit of motorway driving. The windscreen goes aeroscreen on track days so it's not an issue then either. They arrive today and should be fitted by the weekend. :)

Thank you all very much for your expertise. Much appreciated. I did think my mirrors might be a bit more wobbley than most as I didnt see many threads about a massive problem with them as standard. Ive tried tightening mine up very tight, which minorly helped but they are still practically unuseable. I shall grab my wallet and purchase a solution. Thank you once again :)

Hi all, Ive been using my R400D with an aeroscreen recently but will be putting the windscreen back on for trips up/down the motorway to / from track days. The issue I've had with the windscreen + doors, is that the door mounted mirrors are useless on a motorway. Anything above 50mph and they vibrate so much that the view behind is blurry, plus their field of view is quite small. I would be very grateful for any advice to point me in the direction of what options are available to replace them. Is there some type of wing mirror which can be mounted onto the side of the windscreen? Ideally Id like something with a convex mirror (like the aeroscreen ones) as it gives a much better field of view imo. Any advice much appreciated.

Just a small update. I've taken the plunge and sprayed up the front CF wings in quite a few coats of clear lacquer. Took ages to prep them for spraying but they look much better than before. A really deep gloss shine which is very smooth. I'll be honest and say I was more than a little nervous it wasnt going to turn out well but they came out very well :) I cant see how the rain could get into the weave now, as its sealed within a lot of layers of clear but as I havent had them out in the rain, I shall report back once done.

Already booked in, but now Ive got my arse in gear and got a room booked for Monday night. Cant wait! :D Rain or shine.. gonna be awesome :D

Very educational thread. I've learned some stuff today :). Thank you.

I paid over the phone and then the club sent me a disclaimer, by email, for me to fill in. Took a photo of the form and sent it back. Job done. I believe there were also entry forms in the June edition of low flying.

I'm going! My son and I will be there. First track day with the club and looking forward to it. :) Any recommendations for a place to stay with secure parking?