Emissions failure ford focus 1.4 blue smoke from exhaust and co idle of 3.65

Smoke from the exhaust? That's an engine problem. Blue? White? Black? Yes, it matters....
Blue likely means rings or valves. (expensive)
white likely means head gasket (coolant invasion)
black likely means fuel problems.

#1 suspect is the oil seals in the turbo, especially if you use a gause/oil air filter instead of the factory one (known as a "dusted" turbo).

Hi Gert, If the smoke is more visible during the period after start up in the mornings, I would suspect the valve stem oil seals have become hardened and defective. The oil seeps in slowly passing the seals from the cylinder head. Sounds as though you need a head job. Regards John

I would need to know what color this smoke is because of it is white then I would say that you are probably witnessing normal operation. Modern Cat. Converters are designed to reduce emissions to carbon dioxide and water. This water condenses in the exhaust as it cools while shut off and produces white smoke when restarted until the exhaust is warm enough to evaporate the moisture. If the smoke is blue then you are getting oil leaking into the cylinder and it is probably coming from the valve seals but without a visual inspection that is impossible to be sure.

SECTION 309-00: Exhaust System 2003 Focus Workshop Manual DESCRIPTION AND OPERATION Procedure revision date: 01/24/2003 Exhaust System Printable View (214 KB) Vehicles with 2.0L Zetec-E engine
Item Part Number Description 1 - Bracket 2 - Gasket 3 - Catalytic converter 4 - Bracket 5 - Gasket 6 - Front muffler 7 - Rear muffler 8 - Hanger 9 - Flexible pipe

Vehicles with 2.0L SPI engine
Item Part Number Description 1 - Gasket 2 - Catalytic converter 3 - Bracket 4 - Gasket 5 - Front muffler 6 - Rear muffler 7 - Hanger 8 - Bracket 9 - Flexible pipe

Vehicles with 2.3L PZEV Engine
Item Part Number Description 1 5G232 Catalytic converter 2 5K222 Mounting bracket 3 5K282 Head shield 4 9451 Gasket 5 5A262 Insulator 6 5E292 Converter and muffler assembly 7 9448 Gasket 8 5G203 Flex Pipe NOTE: The exhaust systems shown in this section are production systems.
The exhaust systems are of a two-piece construction for production and five-piece construction for service.
Catalytic Converter
The catalytic converter fitted to the Focus range resembles a small muffler. Because of the high temperatures at which the catalytic converter operates, the vehicle body areas around the catalytic converter are protected by heat shields. The catalytic converter controls three emissions; Hydro carbons (HC), carbon monoxide (CO) and oxides of nitrogen (NOx).
Catalyst deactivation due to poisoning
Sulphur (S) in the fuel can cause deactivation of the catalyst.
Lead (Pb) in fuel can cause a severe deactivation at levels above 5 mg per liter of fuel. It is therefore essential that vehicles with catalytic converters always operate on unleaded fuel.
Zinc (Zn) and phosphorus (P) present in some oils, can cause deactivation if oil consumption is high.
The effect of sulphur is felt most if it is released from the catalytic converter as hydrogen sulphide (H2S). This has an unpleasant odor similar to rotten eggs. Changing the fuel manufacturer may help in reducing this phenomena.
To minimize H2S emissions, it is essential that the idle CO level is within specification and that the engine emission system is functioning correctly. For additional information, refer to Section 303-08A or Section 303-08B.
CAUTION: If temperatures exceeding 900°C are achieved the catalyst substrates will start to deteriorate. It is important that the cause is defined and rectified if subsequent melts are to be prevented.
Catalyst melts are normally accompanied by loss of power due to excessive back pressure. For additional information, refer to Section 303-07A or Section 303-07B.
High substrate temperatures are caused by the ignition or the fuel systems. For additional information, refer to Section 303-07A or Section 303-07B.
Misfires at high engine speed may result in an almost instantaneous melt.

what color is the smoke?
white = coolant (possible head gasket)
Black = fuel (possible leaking injector)
Blue = oil (possible bad rings)

Engine Smoking:
.
Black Engine running rich Possible Failure
-Map sensor, fuel injector or fuel pressure regulator.
Blue -Replace Faulty Transmission modulator valve
White Possible Failure. -Head gasket.
Hope this tip helps.
r/
David

Hi Don,

First, thank you for asking me for my input on this. It just so happens, that I used to own a Ford ranger that had the same engine as yours. It was a 1990, but there are few changes to these model years.

Anyway, there is only one reason that your HC levels would be high. Your engine has WAY too much unburned fuel in the exhaust. The same reason applies to high CO levels. Too much fuel and/or not enough air.

Below is a link that you may find very helpful. It explains exactly what we are talking about here and also lists some of the possible causes.

EMISSIONS ANALYSIS

Incidently, when I had the same emissions failure on my truck, replacing the air filter and replacing a failed MAP sensor fixed it. - I did NOT have to replace the catalytic converter. If the numbers are as high as you listed above, you will only destroy a new converter anyway because there is obviously not enough oxygen in your exhaust system for the catalyst to function properly. Those numbers are nearly DOUBLE the allowable maximum. If the engine is running correctly and the catalyst is good, your numbers will be WAY BELOW those maximum numbers.

Please understand that I am NOT telling you to replace your MAP sensor without proper diagnosis. There are many possible causes here. Please click the link above and read the article. It will help you to understand what is going on here.

Internal oil leak, change the spark plugs and cables, oil, filter and add Lucas oil. Take the car for inspection and let me know how it goes. For the belt depends where you get the parts and who does the work.

from what you describe re turbo and blue smoke then you say impellor is loose?? this soundslike the tubo has failed because the oil seals have gone allowing oil loss to bearings due to entering the induction/manifold you will req a recon or new turbo and if yours is intercooled then the intercooler will req cleaning as will ind hoses when work is completed the smoke will be evident for a while due to exhaust system contamination especially catalytic ? i'm afraid these components are expensive and not really diy