Naf maf ?

[makeitfit]

Help again please.
I'm trying to stop my maverick being so naff!
I'vegot the MAF unit under suspision but dont know what I should be looking for.
It appears to be just a fine gauze over the throttle body!
Is this it and if so it seems all clean or am I missing someting?
Engine seems to hesitate up to about 2500 rpm then sems alright if I give it some welly!
cheers

 

[zippy656]

un plug it, then go out for a run, if it feels the same , then id think its a naf maf. if a lot worse your maf is fine.

 

[makeitfit]

Ta Zippy just doing the plugs while I'm there so will be back in a bit!

 

[Terranosaurus]

Totally differnt on a petrol zippy.

Mine wouldn't run atall without it makeitfit. That guase is just some flame arrestor incase of backfire - doesn't work, or didn't on my LPG anyway.

Remove 2 screws from outsi of throttle body and withdraw mav from outside. Clean with carb cleaner replace.

 

[zippy656]

:nenau 2.4 missed that bit.. :nenau

any ways its ZIP now

as ive been cut in half!!


post cut to 610

:nenau:nenau

 

[makeitfit]

Totally differnt on a petrol zippy.

Mine wouldn't run atall without it makeitfit. That guase is just some flame arrestor incase of backfire - doesn't work, or didn't on my LPG anyway.

Remove 2 screws from outsi of throttle body and withdraw mav from outside. Clean with carb cleaner replace.

Ta for that just unpluged it and it does run, but only like a bag of spanners....proper ruff
So I'll undo the side screws:augie

 

[elty001]

:nenau 2.4 missed that bit.. :nenau

any ways its ZIP now

as ive been cut in half!!


post cut to 610

:nenau:nenau

can't get away from this recession.they are even cutting back on posts.
down with brown and vote for zip:lol:lol:lol:lol

 

[zippy656]

Zip to rule the world!!!

 

[makeitfit]

Right I've got what I think is oil on my mouse now grrr
Anyway this MAF unit appears to have two tiddly filaments on it attached to a cuple of wire/metal posts. Is this it?:nenau
So should I just spray contct cleaner on them?(Not got any carb cleaner)

 

[Terranosaurus]

not sure contact cleaner is a good idea that is mildly acidic.

 

[makeitfit]

Ok I'll nip down the garage and get some :thumbs

 

[zippy656]

Ok I'll nip down the garage and get some :thumbs

yep, good idea

 

[makeitfit]

Right, been there , done that, no better.
Any ideas what to check next?
It's like driving with the handbrake on , a sort of flat spot between 2000 and 3000 rpm?

 

[zippy656]

over 3000 it get better??

we are all guessing youve done filters plugs and points ect?

 

[makeitfit]

Yep I;ve done the fuel filter on the chassis, dist cap, rotor arm, plugs,it's got new KnN filter, and new leads:sly
Everything I've taken off so far has been clean as a clean thing anyway:nenau

 

[rossco]

Could be a slight fuel blockage or a sticking linkage try a fuel cleaner and see what happens.

 

[makeitfit]

Could be a slight fuel blockage or a sticking linkage try a fuel cleaner and see what happens.

It does feel a bit like a fuel shortage, thats why I did the filter.
Does this fuel cleaner stuff go in the tank or in the throttle body somewhere?

 

[extreme-4x4]

is it a regular running shit or an erratic running shit.

ie is it a constant (the same all the time) running crap or does it vary

could be a fuel line air leak getting air into fuel.

 

[makeitfit]

Well it's sort of regularly intermittant !
Say you're coming out of a bend in third at about 2000 rpm and then accelerate away, well that's where things get a bit OH COME ON
sort of dull
However if from a standing start I give it the beans it'll rev up through 5500 in first and 2nd then as much as is avail after up to "you're nicked" speeds:thumbs
I've had a good look at the pipes and wires and stuff in the engine bay and cant see any thing odd, in fact all seems far to clean for me
so who knows!:nenau

 

[elty001]

i had some problems with mine running crap over christmas.
changed the plugs,leads,dizzy,rotor arm,air filter,fuel filter,cleaned maf,stripped down and cleaned egr valve and welded a cracked manifold.
can't actually say which one was causing it to run rough but it seems to have worked so far:nenau