my newly aquired s1 has a main fuel problem. its drinking fuel, pumping out black smoke and missing.

has new plugs fitted but doesnt take long to soot them up


metering unit??

 

Most likely a duff sensor mate (water or air temp), metering unit could be at fault but go with the easy cheap things first.

Rob,

 

Or fix the problem and then take it there lol.... sensors are cheap and tbh your car is probably due them regardless. Change the air temp and the water temp sensor, your cold start valve could also be on constantly try unplugging it and see if it helps.

Rob,

 

cheers rob, there aint no way id be putting it on the rr with it running the way it is, prob wouldnt even make it, last thing i want to do it feck it completely.

air temp sensor, where will i find that?

 

No worries mate, s1 John is right in the sense that any pro will be able to identify the problem very quickly. But if you like giving things a go...

Not sure where the air temp is on the s1, on the s2 mine is on the cross over pipe. There are three sensor looking plugs for the coolant 1)ECU coolant temp 2)fan switch 3)gauge sensor.

I would also go over all connectors with some contact cleaner and a tooth brush to be certain. Also check the map sensor hose (small black hose going into the ecu).

Im not saying it is defo the sensors, but you don't have much to loose by trying.

If the cold start injector is constantly on this could indicate a problem with its sensor. But this is easy to check by just unplugging.

Does the car start okay, does it run differently when cold/hot?

Rob,

 

coolant temp sensor is a common cause of these type of symptoms. the one at the bottom of the inlet manifold underneath. unplug the 2 pin plug on the side of the metering unit and if it runs a lot better it'll probably be down to the coolant sensor. coolant sensor is the one on the white or yellow plug.

 

put fresh spark plugs in and it started no bother. the old plugs were black and soaking!

anyway unplugged the 2 pin wire plug from the meter head, the car reved up for 2-3seconds then cut out???

the co adjusting screw was screwed right out...surely thats not right?

 

You need to have a read of a setup guide!

 

i had it at my work, it filled the garage up with black smoke in about 5 mins so adjusting the co could be a bit of an issue.

ill start from scratch with your guide and go from there.

cheers

 

hi how did you get on mine is the same many thanks ...

 

yeah how did you get on? Have a good read.

 

just bought a escort mk5 van with rst engine in it its the old mfi set up i thinkk its over fueling as its running like a sack of s**t at the min its like its running on 3 cylinders sometimes but ok when its mid range
on tickover its very lumpy, & it seems to start boosting nicely but then the power dies around 4k rpm,
theres no smoke from turbo etc i belive its purely fueling,
the lad i got it off has just replaced the metering unit with a ebay special,
is there any way of adjusting the fuel mixture on the metering unit ?
as it is hard to start, especialy once its hot it just about ticks over on its own steam but to get it to rev im having to feather the throttle lightly to be able to drive it anywhere
any help iwill be apreciated
& pics of things to try or detailed explanation would be great as its the first rst ive had
cheeRS ste

 

take it for a set up

 

im gonna contact the lad i got it off to see why he changed the metering unit as if he was having the same trouble before, it may well be something else causing the problem, im gonna book it in to a local firm near me called basford dynotune,
they have got a decent reputation , not sure of anywhere else in nottingham to take it,
i dont wanna end up shedding out around £100 for a set up just for them to turn round & say theyve spent a few hours but cant bottom the fault etc

ive had another few hours on it today,
ive took the rocker breather off & cleaned that out,
& also noticed that when i take the oil cap off it seems to level out & run a bit more evenly,
ive gone over all the boost pipes & vac pipes to check for splits & holes etc, disconected the cold start,
temp sensor
im tempted to put the old metering unit back on & see if it runs any differently

it starts first time from cold & runs ok, splutters when you rev it but seems ok on tickover,
then it drops off when it warms up & starts to odd leg,
but if i take the oil cap off it runs a little more evenly but still misses,
when driving it you seem to run ok low revs but once it boosts up it splutters n farts

 

they both sound like they need a set up realy ... my s1 was the same as on my gotech you map it to what you what but it has a over ride fuel mixture nob on ecu to richen it up if its ever needed and i had to play around with it coz it was over fueling so i turned it down and it started running mint and doesnt smoke at all (mine was smoking the same mate).

 

got my van back yesterday
the bloke has set it up as good as he can get it at the min
said its lacking fuel presure

he suggested to start from the tank & work forward as my tank looks like its the original diesel item

so said to replace the tank & fuel lines with genuine rs turbo items
& try a new fuel pump.

first of all a rst tank aint gonna fit my van so im stuffed there
so phoned a few places who deal with modified cars & engine conversions etc,
basicaly what ever tank i use has gotta have a swirl pot built into it or i can stick with the tank i have & have a external swirl pot fitted
(£700) 2 heart attacks later !!!
any sugestions of what tank will/may fit ???

as for the fuel pump im thinking if i opt for the cossy bosch 044 pump that should be more than efficient for fuel pressure,
are these a direct replacement for the rst item or do you have to modify anything ??

as for the fuel lines if the diesel ones are still fitted id of thought they would of still done the job,
if anyone knows what diameter pipe the rst has let me know as il replace the lot as a mater of cause & just route it inside the van so nobody can drain my tank

he also said that theres a possibility of the metering unit being faulty but without the process of eliminating the tank,pump & fuel lines first theres no actual way of knowing,
is there a easy way of diagnosing the metering unit as if thats whats faulty it seems pointless replacing other bits

corect me if im wrong but if i have at least half a tank of fuel surely this would eliminate the need of the swirl pot & take that out the equasion,

uprating to a cossy pump will take the pump out the equasion

if anyone can suggest anything else to try before i go & get a new pump please do so as its wrecking me not being able to drive it around

 

from cold it will start first time sound fairly level but misses slightly when revved if i try to drive it it will stutter & sound like its on 3 cylinders but if i leave it to warm up for a few mins after starting it , it will drive semi fine it still has a slight miss but is drivable & sounds fairly even on tickover etc,

if i stop it & restart it i have to do the same thing again, it will start fine but as soon as you touch the throttle it will splutter & sound like its on 3 cylinders again but once left ticking over for a few mins revs fine & drives ok again,
the tuner i took it to said that its running ok on tickover but once the throttle is touched it richens up like mad hence it spluttering,

& its surging when its boosting around 4k rpm but this could be what the tuner was on about with lack of fuel pressure

 

deffo the metering unit,i had exact same probs,i fiddled with it for months,i got it running a couple of times by adjusting the allen key screw half a turn then shove finger over it so air doesnt get out then try revving it hard it sometimes clears,u think thank fuck for that,itd last a week or so then start again.so eventually got hold of a better metering unit,apresto.perfect.the prob youve got is getting a good one,i was lucky.shove another on mate.

 

anyone got one laying around that they not using
& wanna donate it to me cheaply ive been looking on flea bay but they all look like they been at the bottom of the sea for a few years lol
i dont wanna go & buy another dud one, but then i dont wanna pay £100 for one, i know that someone on ebay is doing brand new ones for £120+p&p

 

Mate, i really doubt its the metering unit, every one says theirs is naff but its just not set up properly, or has duff sensors etcetcetc. If it runs the metering unit is probably alright.

A good one will cost you over £100 anyway.

As for low fuel pressure (if it has low fuel pressure) people sometimes buy a new van tank and a new rst tank, cut the swirl pot out and weld it into the van tank... or you can use the whole rst or cosworth pump cradle, you don't specifically NEED the swirl pot.

Rob,

 

so i could stick with my tank & upgrade the pump to a cossy item ??

 

Yep no reason why not, where is the pump in the diesel? is it in the tank.

Rob,

 

just to let ya all know ive bottomed the problem,
it was nothing to do with the tank, fuel lines or pump,

the pump is at side of tank same as rst/3i etc,

the problem with mine was the black box at side of the metering unit i think its something like a pressure regulator or something along these lines,
it has 2 slot head screws holding it in place,
its on the same side as the fuel filter
i swapped it for 1 off my old metering unit altho its a yellowy grey colour not black the part number is the same & it works & now my van goes like stink


well did ive wrecked the gearbox now,
it had a slight whine before but i got a bit jolly when id fixed it & had a blast with a zafira gsi lol,
now it whines bad & is juddering

anyone know if a later escort zetec box or a td box will fit & if theres anything need swapping like speedo cable etc,

& does the fiesta rst box have the lsd built in & are these a direct replacement for a escort rst item ????
cheers for all the suggestions on trying to bottom my running fault
a very happy ste its finaly running sweet,

 

Need a gearbox asap as it's finaly running sweet, got it running right went out for a play was out 10 mins & had to nurse it back home lol

Will a fez turbo box bolt straight in place as mine as it's basicaly the same Block (cvh)

would a zetec box fit ? How wouldi pick the rpm signal up off a newer box?

& would I need a box from a mk4 or mk5
as the engines out a series 2 I belive but the van is mk5 shape ?????
CONFUSED