ok folks ,

friends cars got a issue , its huting through the revs , low on power , and stalls every now and them and the engine management lights came on

have the feeling its the mass air flow sensor , all roads seem to point to this

but could it be anything else , cars probably coming down to check for air leaks ,

its a 1.6 ford focus on a x reg ,


on a sub-question , will any other mass air flow units fit this car ?

ie the 1.8 foci , or a fiesta jobbie ect ?

may make getting one cheaper ,

any info folks

thanks beefy

 

Mass Air Flow meter or a massive air leak, more than likely meter

 

Low on power probably a clogged MAF sensor.

Hunting on idle and stalling could well be a combination of that and a sticky idle control valve.

 

k thanks lads,

can a maf be cleaned ?

if i have to replace it are they stadard across the different engine sizes ???


beef

 

have also had the breather pipes in amongst the inlet manifold split.

 

Yep, pop it out, and use some carb cleaner and a soft toothbrush - be extremely careful - the sensor is basically a pair of tiny filaments like in a light bulb - these sit in the path of the inducted air. Using voodoo, the ECU can determine the amount of air entering the inlet. If these are gummed up with carbon, the ECU doesn't get a true reading, and thinks it's basically idling, which screws up everything. Break em off and it's time for a new one.

Clean the carbon deposits off the filaments. You might not even need to use a toothbrush - the carb cleaner might clean the filaments well enough to eliminate the MAF from your enquiries. Mind you don't split the rubber flexi hoses attached to it and the inlet. You might actually find that one of those is split anyway, so it might be worth taking a look while you're there.

I think most silver topped Zetecs have the same MAF sensor.

 

If the management light is on -a quick scan with either a scanner or a bluefin/dreamscience/similar unit will give the fault code in a matter of minutes...

Could take a lot of the guess work out of it

 

Cat?

 

As above, get one of these, i bought one a few weeks ago and didn't expect much for the price, but it does exactly what it says on the tin!

http://cgi.ebay.co.uk/UNIVERSAL-OBD2...1%7C240%3A1308

 

yeah i know that will , just i dont have one lol

will ring round a few faces see if anyone has one to hand ,

ok lads thanks for the input ,

beef