Hydro Carbons (unburnt fuel...)

[Gazza14SR]

I hooked my car up to my mates krypton tuner and the hydro carbons varied between 500 - 1800 at different revs. (unburnt fuel)

Is this alot of unburnt going through the exhaust system or about average?

Cheers

[Aragorn]

if its cammed it will be high at idle and fine above about 2k

so as long as the 1800 is at idle and the 500 at >2k your fine :P