Mot On Saturday

[driversdomainuk 8]

Hi All,

 

Got my MOT on Saturday, two questions:

 

1. I have set my idle at around 1,600 rpm due to a low oil pressure issue - only a temp fix I know, but would having this higher idle have an impact on emmissions test? I guess if it did they would figure it was due to the fact it was running fast?

 

2. Annoying thing - but my horn does not work! A few years ago it failed MOT because of this, but it was replaced and all was well.....now does not work again (i.e the new one is bust) - checked all fuses - anything else I need to check?

 

It is a competition car and so a horn has no use (only drive it 300 miles a year LOL!)

 

Cheers

Rob

[Tom Fenton 1,548]

I've a feeling an idle that fast may well fail simply for being too fast, regardless of emissions.

 

Horn will need to work. Remove it and test it with wires direct to a battery, either it works and you've a wiring fault, or its knackered and needs a new one.

[one-lady-owner 1]

Both of those would cause MOT problems, the high idle means they probably won't test the emissions, I did something like that on my old 1.1 106, I pulled the throttle cable a bit tight to sort out a horrible lumpy idle and because the idle was 1100rpm the tester I used at the time just refused to test the emissions completely! And the horn not working is a fail unfortunately.

 

All dependant on how friendly you are with your tester.

[driversdomainuk 8]

I've a feeling an idle that fast may well fail simply for being too fast, regardless of emissions.

 

Horn will need to work. Remove it and test it with wires direct to a battery, either it works and you've a wiring fault, or its knackered and needs a new one.

 

Thanks - I will wind the screw on the carbs and bring it down to around 1,000 rpm! I will try and sort the horn....

 

Sounds mad, but do you think I could get some kind of seperate horn I could use for the day and take off>>> I mean what is the rule on a horn?

 

thanks

Rob

[driversdomainuk 8]

I've a feeling an idle that fast may well fail simply for being too fast, regardless of emissions.

 

Horn will need to work. Remove it and test it with wires direct to a battery, either it works and you've a wiring fault, or its knackered and needs a new one.

 

 

Well put it this way. I work for a Peugeot dealer and are friendly with the guys in the workshop who are testing it...However, they cant overlook serious things, I just want to get a seperate opinion besides them....

[one-lady-owner 1]

I do know of a guy who had a vintage car, took it in for MOT, horn wasn't working so popped into the local bike shop and bought one of those silly horns Clicky and his tester was OK with it!

[driversdomainuk 8]

I do know of a guy who had a vintage car, took it in for MOT, horn wasn't working so popped into the local bike shop and bought one of those silly horns Clicky and his tester was OK with it!

 

 

Would a bicycle bell work????

 

Seriously though, what about a small air horn? I could have the trumpet pointing outside the car, as I have no surrounding by the gear leaver (when driving I can see the road and the exhaust pipe below the car) surely this will work?

[Anthony 1,003]

Just fix the horn properly - just about any car in the scrapyard will have a suitable horn on it, assuming it's not just a dodgy wiring connection that'll take 2 minutes to fix. I can't understand why you'd lash up some "MOT bodge" when that's probably harder work and more expensive than fixing the actual fault!

[Eliganza 2]

Might aswell fit an electric horn from a base model 205, took me about 2mins...

[Stevo309 0]

Depends where the fault is though, if it's in the wiring to the horn or the horn push then it's a bigger job than lashing something up. As Tom F says take the current horn off and wire it direct to the battery, if it doesn't work it's a dead horn and 2 minutes to replace. If it works then it's your wiring somewhere.

 

I bet there are no rulings on the horn itself though, the type, position, tone and volume must vary infinitely.

[jord294 94]

if you have 2 relays up by the header tank (should be green), swap them round just to see if it's one of them

 

i'm speaking from experience, from when i had to fix a customers car

[Anthony 1,003]

if you have 2 relays up by the header tank (should be green), swap them round just to see if it's one of them

If it's was originally a 205 1.9 GTi or 309 GTi (ie that had air-horns as standard) then that's correct.

 

Cars that were originally 1.6 GTi's or base models that had a normal electric horn don't have that relay present.

[Baz 421]

I bet there are no rulings on the horn itself though, the type, position, tone and volume must vary infinitely.

 

Just has to be a functioning twin-tone horn.