Brake lights?

[mark halford]

After NCT (which we dont talk about) my brake lights are staying on all the time!
Has anyone come into same problem,any help would be great thanks

[GTM Coupe]

I would say doggy brake light switch, check switch on the brake pedal not hard to fix

[minionly]

Why dnt we talk about the nct

[Kenneth Murphy]

my money would be on the switch aswell

[mark halford]

emissions kept going up!!! 1st time no cat on mini and it had lowest O2 reading.fitted cat and back box retested and reading was twice as high....3rd time after adjusting timing and all that was higher again..that why we dont talk about NCT for now....Cheers for the advice lads,will check the switch 1st.

[woody]

I'd go with brake switch to.
Which readings keep going up, CO2, HC or Lambda?
What were the three readings per test?

[kona]

If the 02 went up, you have a leak in the exhaust, Id be looking at the joints you tightened when refitting the cat.

High 02 means your running lean so you either have a fuelling issue or an air leak somewhere. What are the HC and co like?

[mark halford]

lets start with NCT no.1
Low idle CO 2.05% HC 186ppm
High idle Lambda 1.14 CO 1.06% HC100ppm (forgot i needed CAT and exhaust had small leak)

Retest after fitting CAT and pipes and back box
Low idle CO 3.00% HC 549PPm!!!
High idle Lambda 0.87 CO 5.02% HC207ppm

Restest AGAIN after more work
Low idle 4.39% CO 4.39% HC286ppm
High idle Lambda 0.85 CO 6.09% HC 202ppm

[woody]

The first Lambda reading shows the engine running too lean and this then goes too rich for the following two test. If your running a standard manifold would you have broken the joint just below the sensor allowing some air in, when you were fitting the cat?

[mark halford]

anything is possible with minis thanks for advice woody ya standard manifold will check that later on this week and let you know.