' Michael.
I have checked everything that I can. Hopefully it will be ok. I'll be surprised if it passes with no issues at all. I will not be surprised if
it fails!
Hopefully they will let me make tweaks, it's just a mainstream Mr Clutch so we will see. I recon the headlights point in wildly wrong directions
but they can just be adjusted on site. I also have no idea if the Speedo works since I rewired everything.
[Edited on 1/7/20 by bi22le]
[Edited on 2/7/20 by bi22le]
Speedo isn't part of the MOT.
That's good to hear but different to what this website suggests where operation is a major.
https://www.motester.co.uk/mot-test-of-instrument-panel/
Sorry, Yes it has to be present, not visably knackered and illuminate. As for ooeration... It's not driven other than in and out of the test lane so generally not fast enough to read doing that and there's no way to check calibration. In 40 yes of taking cars for tests every weekdsy, I've yet to see one fail other than on illumination.
How are you keeping? Nice to hear you’re getting the car on the road. I have an excellent MOT man local to me if you ever want a recommendation. Very
accommodating to things that are a little “different”.
Regards the speedo, I had a fail on my speedo once, this was because my odometer was the same as my last mot and the system automatically refused it.
All I did was turn my satnav in which indicated speed and it got an instant pass.
All the best with your test!
I can't see the speedo if I have the tonneau covering the passenger side whilst driving. Consequently, I have a speedometer app on my mobile
which I can have in a more visible position thereby keeping me legal and advised when I need to observe speed limits....... which is always of course!
''
Michael.
Well it passed everything but emissions. Which shocked me considering I have CO 3.5%, 1200ppm limits.
The CO was over 6%. I think it's due to a number of things and I would like others to share their thoughts of what will bring it down.
New plugs
Fuel cleaner
New fuel
A good blast ( it covered about 2 easy miles on the way to the centre after sitting still for 4 years)
Anything else?
If the fuel is 4 tears old, im surprised it even burnt!
I would be inclined to drain the whole fuel system, but keep the fuel,
run a couple of gallons of fresh fuel through the system a few times, drain that, and add it to the old fuel
fill up with fresh fuel, and give it a good blast
And next time you fill up, you will have the old stuff to put in 
New plugs filters etc, would be a good thing also
steve
What was the HC reading? Is it carbs or injection? 6% is very rich (at least 4x what it should be) and if it wasn't burning the fuel because it gone off, then you wouldn't have that but you would have high HC from the unburnt fuel.
1 yes new fuel.
2 check for a stuck 'choke' control,
3 clean/vacuum the air filters.
4 and as you already said, try and run/thrash it a bit too
Thanks for the responses.
It had fresh fuel, a couple of weeks old anyway. I'll get some same day stuff in there this time.
It had a new fuel filter.
HC was 507 ppm limit 1200ppm
CO was 6.83% limit 3.5%
Last time I had it MOT I was using it a lot. That time (8 years ago but on the same map) it was:
HC 63ppm
CO 0.78%
A massive increase, you can see why I was not concerned with the emissions.
I have ordered some redex and new plugs. I'll give it a good wa up and thrash on the way there, hopefully Monday.
I have had it before when I’ve given the car a super good thrashing before taking it in and it’s passed. I suspect that I may have problems with my
weekend car come MOT time with emissions being high, but we will see what happens!
My thoughts would be go the long way to the test centre, rather enthusiastically and see what happens.
I cant see the Co being that high just cause it needs a blast tbh,its over fueling massively.
You are heading towards bore wash territory with it that high,so check your oil doesn't smell of fuel.
If its injection I would say it will be the temp sensor is knackered,or unplugged.
quote:
Originally posted by CosKev3
I cant see the Co being that high just cause it needs a blast tbh,its over fueling massively.
You are heading towards bore wash territory with it that high,so check your oil doesn't smell of fuel.
If its injection I would say it will be the temp sensor is knackered,or unplugged.
Well in that case 2 possibilities come to mind (for starters) if the temp sensor is ok...
It could be the injectors being s bit gummed up (from the old fuel) and dribbling fuel when closed so over fueling. I've got lucky clearing
exactly that by running on a very strong mix of fuel and injector cleaner (Forte)
Or if it closed loop (think I remember sensor from your exhaust thread) fueling, the lambda could be fouled/faulty or an air leak between head and
lambda, so it reads extra O2 the trys to compensate and runs rich.
Also worth checking for air leaks on the inlet side.
I had an old v8 that was off the road for nearly twenty years and it failed miserably on emissions. Turned out that the fuel return in the tank had clogged up with crud. When I got it cleaned out it sailed through the test.
It will be carbed due to emission limit stated in V5
It’s most likely to be old fuel varnish in the jets.
What carb type?
Need to clean the carbs with carb cleaner and maybe take apart and use carb cleaning brushes.
If you have started the engine occasionally in the time it’s been off the road and not got it up to temperature then it’s likely to be the oil is contaminated with fuel as already suggested if the oil hasn’t been changed. Check the air filter for blockage. Did the testing station get it up to temperature? Did they go through the correct procedure?
quote:
Originally posted by CosKev3
I cant see the Co being that high just cause it needs a blast tbh,its over fueling massively.
You are heading towards bore wash territory with it that high,so check your oil doesn't smell of fuel.
If its injection I would say it will be the temp sensor is knackered,or unplugged.
It is fuel injection, not carb. It was very warm and ready before testing, just had not covered many miles.
I fuel was drained out the tank before laying up but no engine prep was done. Fresh oil and filters, I tried the 2nd test with no filter at all to
check it was not causing to much restriction.
I think some redex and a good blast will sort it. I will check key sensors to.
I have a retest at Monday lunch time, I will take a very very long route round and hope the redex does some good.
quote:
Originally posted by rusty nuts
quote:
Originally posted by CosKev3
I cant see the Co being that high just cause it needs a blast tbh,its over fueling massively.
You are heading towards bore wash territory with it that high,so check your oil doesn't smell of fuel.
If its injection I would say it will be the temp sensor is knackered,or unplugged.
When I was testing it was a regular thing for cars to fail on emissions, when retested after an Italian tune up they would sail through the test
quote:
Originally posted by snapper
It will be carbed due to emission limit stated in V5
It’s most likely to be old fuel varnish in the jets.
What carb type?
Need to clean the carbs with carb cleaner and maybe take apart and use carb cleaning brushes.
quote:
Originally posted by rusty nuts
quote:
Originally posted by CosKev3
I cant see the Co being that high just cause it needs a blast tbh,its over fueling massively.
You are heading towards bore wash territory with it that high,so check your oil doesn't smell of fuel.
If its injection I would say it will be the temp sensor is knackered,or unplugged.
When I was testing it was a regular thing for cars to fail on emissions, when retested after an Italian tune up they would sail through the test
So I managed to get some time in the garage today after riding Motocross bikes all yesterday. I have done a few things to help and check.
I have added redex and run the car for about 40 mins. I did not drive it
There was a drilled holes directly opposite the lambda sensor in the exhaust, I have patched that up.
I plugged into the OMEX ECU and checked that the lambda, air temp, throttle pos, and water temp are all working which they were.
No smell of petrol in the oil
Hopefully I'll receive my new spark plugs and can change them.
My battery was not charging so only had about 10V while doing the last test, I have fixed this so maybe things will run better with more voltage in
the system.
I will take it for a long drive before the test tomorrow. I will keep you all posted.
quote:
Originally posted by bi22le
There was a drilled holes directly opposite the lambda sensor in the exhaust, I have patched that up.
It passed!!
I think the main things I did which helped were:
- A 15 min proper blast with plenty of redex in the tank
- A little bit of fresh fuel
- The battery was not charging so I fixed that. Voltage went from about 11V to 14.4V
- blocked a little hole opposite the lambda sensor in the exhaust.
Reading now 1.52% CO (pass 3.5%)
171ppm (pass 1200ppm)
Its now taxed and once the kids are in bed I am going for a drive!!
It would have been the exhaust hole. That lets o2 rich air in, the lambda sensor sees that o2 and ECU interprets that as a weak mixture and richens
the fueling... but still sees the leaking in o2, so richens more... and again...
Anyway, well done.
[Edited on 6/7/20 by adithorp]
Result!
If you’re ever in my neck of the woods please swing by. Would love to have a nosey at it.
Enjoy!
Well done and make sure you enjoy your drive for all your hard work done 
Jason