please help, i took my car for its mot on monday, tester was off sick so they offered me a free pre mot so we could get it ready, new number plate, rear shocker and adjust back brakes, all done. took up this morning and its failed, broken front coil spring corroded brake pipes ( we can do those) and failed on emissions. exact wording on failure

exhaust emissions carbon monoxide content after 2nd fast idle excessive.

results

fast idle test

engine speed 2870 rpm co2 = 0.43 max 0.30 hc = 49 max =200 lambda = 1.013 max = 1.090 so hc and lamda have passed

2nd fast idle test

engine speed 2960 rpm co2 = 0.42 max 0.30 hc= 25 max =200 lambda = 1.009 max 1.090 so hc and lambda pass again just co2 fail

natural idle engine speed =950 rpm max is 775 rpm, any idea on how to sort this am now totally skint having replaced 4 tyres, rear shock new cat and new front brakesonly thing i may be able to offer for a clue is its starting drinking petrol like its going out of fashion last few weeks and the mot tester says it smells rich.

thanks for any help offered