woodz77

looked at a fez turbo 2nite. im after a bit of advice about how it was.

its had a new actuator, new t3 turbo,new K n N fitted and a set up ??

the chap said the co was ok .what is it supposed to be at ??

he said the garage couldnt get the HC down??? whats that ???

at the back of the engine bay there is a plastic bracket with a long plug going in to a socket and below is wot looks like a to pin sensor plug going in something else and nect to it is a black plastic screw which he says neededs turning to set it up properly???

the main prob is when started it ticks over fine but after a couple of minutes is just splutters like shit. it dont cut out , just runs lumpy. when you drive it it runs and boosts fine . holds 0.6 bar ??

the other thing is when you remove the oil cap when its running i thought the revs usually drop and then rev up again but whenyou remove this cap it doesnt make any difference what so ever ???? is this right???

any advice would be brillant . dont mind getting it if it just needs setting up but not if its on its last legs !

woodz77

anyone ??

xr4x4rs

iTrader: (5)

the litle co screw is as you decribe should be somehere near the map sensor on behind the inlet on the black plastic bulhead cover

with the oil cap it sonly escort mfi that when you take the cap off it should lower or cut out as its a ricirculating braether system, hence any air leaks the car cuts out

bud-weis

what you described sounds like the map sensor and co screw....

if it's a good deal buy it then get an MSD chip on it,then the MOT will be a doddle

woodz77

cheers mate !!do you know what 'HC' stands for ??? its below the CO reading on the print out and this is what the chap reckons is set wrong????

dexterc

HydroCarbons I think.

Stu.H

yeh as above

bud-weis

HC is usually the 'hydrocarbons' .....your allowed so many parts per million ( ppm ) in your exhaust gas. if it's too high it fails.

woodz77

what could let it tick over fine for a few minutes, and run fine but make it idol lumpy after a couple of minutes????????????????????????????????

xr4x4rs

iTrader: (5)

i think the co level on one of them max is 3.5 % or lower to pass the mot

woodz77

im sure it said 3.2....... something?

dexterc

I happen to have the emissions bit of my MOT here, for CO, the max is 0.2% and for HC 200 PPM. Both at fast idle. At idle, CO needs to be less than .3%.

xr4x4rs

iTrader: (5)

hmm ok maybe wrong

ewhen my escort went for the mot i asked him what were my emissions and he said just passed and just under 3.5%



didnt think fiestas would be different

dexterc

Thats from my last 2 MOT's emission papers, from 2 different garages, for a Pug 306 S16, which is a 2litre. Maybe its different, I dont know.

edd

high hc's on my old car was oil pissing down the stem seals and getting on the plugs. missfire might be causing it also.

Graceland

HC's can be anywhere below 1100ppm for cars registered before 1993, and co can be anywhere below 5% i think

woodz77

what is HCs?

gup

iTrader: (1)

1992 before the co can be 3.5% and the h,c can be under 1200
after 1992 (cat stage) got to be before .30% with h,c 300 if im correct

dexterc

HC's, its the plural of HydroCarbons I think

bud-weis

cam timing also alters Hydrocarbons i beleive