Hi, I've left my r26 at btm Motorsport in birmingham with Fred, who by the way is a lovely guy and very helpful. My Meg failed it's mot on the emissions so I changed the lambda which hasn't cured the problem. Fred has had the car since yesterday and is changing the cat, but he has no idea what the problem is and seems quite frustrated! The emissions have actually gone up since the first test and he doesn't think the cat is fully to blame! Has anyone seen this before, and if so what's the problem because I'd love to get it sorted ASAP and help Fred out as he's already working during his time off!
I can't remember them exactly, and the printouts are in the car which is 100 miles away! But the first readings were around the 0.92 mark for the C02 at 3500 rpm and it got worse at idle, and apparently they're over 1 now! Fred said he's never seen this type of problem before and he's tried all of the usual things that cause it but to no avail!
The secondary lambda is fine but we replaced the primary lambda which temporarily brought the emissions down but they've gone back up!
Second sensor only brings the management light on if the cat is knackered. Mine was tie wrapped up behind the engine for 2 years as I used the lambda 2 port for my afr gauge. Mine passed mot every time with a 100 cell cat further down the system. Lee lee
Have the timing checked, if Fred hasn't already done so and if that's okay ask him to do a compression test. We had a very similar issue in with a Twingo '133 late last year... News wasn't good. Ideally this needs a proper CLIP session though. Fred is brilliant but I know he hates sneaky electrical issues like this because he can't fix them with fire or a hammer. Mick
News wasn't good as in? I'm getting scared now because ideally I want to get the car properly sorted and get rid because it's starting to cost me a fair bit and I'm saving up for a house deposit! It's already taken £1500 out of my savings!
Finding a "friendly" MOT testers you put it doesn't solve this issue of the OP having a problem though. What if this car has poor valve seal and continuing to drive it causes the valve to eventually fail and drop its head? @ghosty - the Twingo had a small timing error which needed correcting but it isn't a nice job on those due to the cars design so you have to completely strip the cars front end to do the job (a lot more than with the X65), meaning the owner had a further £610 on the bill... Normal emissions restored though. i know Fred pretty well and we know he knows what he is doing. Has he checked the timing position and compression test/leakdown tested it yet?
I don't know I've got to call him soon to see what the crack is! I can't afford that though so I hope it's not that or I'll cry!
Just spoke to Fred and the cat has been hollowed out and the 'new' lambda I bought doesn't work so he's putting a new cat on and changing the lambda and everything should be hunky dory! Top bloke!
Cat has been hollowed out? It was fully functioning when it came off last year. I know mice eat anything but that's pushing it. Sorry Shaun if this has caused you extra grief no problem giving you your money back mate.
the guy did 28 hours straight rebuilding my engine from the ground up before we set off for lemans in 2011!
No your cat hadn't been hollowed out! It was missing a heat shield though so he couldn't use it. But he found another one with a heat shield at no extra cost so don't worry about money. I'm just on my way to pick her up now. Can't speak highly enough of Fred!
Yeah everything that could go wrong went wrong with it! I'll stick a thank you in the specialists forum later!
