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i started my s14 today for the first time in a while.changed the oil+filter,cleaned air filter and new battery.started it up was ticking over very rough would rev up to over 2k revs and drop very low and nearly cut out and kept going like that took it for a drive and it went grand but when came back and parked and same thing again.was thinking maybe a boost leak or dirty afm.will have a look tomorrow after work what else will i look out for
It could be the fuel, i had the same problem a few months back, i had the car parked for a few months and when i finally started it was running crap......the rev's were up and down, but added fuel and let it idle and went sound after 20mins or so!
No harm to change plugs too!
had that problem b4 with my 1 but it was spluttery whle drivn and it was the afm
spark plugs id try first woz it putn ot smoke?
when you say cleaned airfilter ? how and wot type of filter ? cone or panelQuote:
Originally Posted by chris
no smoke she'll run perfect for a minute or so and then starts to get unevenQuote:
Originally Posted by doyler
apexi power intake.its nearly new just gave it a blow out with air there was a bit of dust on it from the shedQuote:
Originally Posted by okachan
havnt had a chancee to do anything with it yet just checked afm wiring and plug.
Pull all the plugs out and give them a good cleaning with a wire brush and some emery.
Get a drop of brake cleaner and spray the AFM in case theres a build-up of any kind on it.
Get her filled with new petrol and possibly an injector cleaner through it...
was going to change the plugs soon but will give them a clean untill then they were only put in a month before i stopped driving it.was told a bit of carb cleaner for the afm would that not damage it
If there iridium plugs dont go with a wire brush at them, spray them with carb / brake cleaner thats all!Quote:
Originally Posted by chris
cleaned afm and spark plugs today the afmr was dirty alright but not the problem.there is a greddy type s bov on the car when i pull off the vacum hose going into it and dont block the hose it runs perfect but if i block the vacum hose or if i connect it back to the bov it starts reving up and down again.is the problem the bov or something else.also when i start the car it runs fine until i give it a rev
when you've that pipe off and your thumb on it, thats the exact same as when its connected, there would be no air flowing in that pipe during idle when its connected to the bov,Quote:
Originally Posted by chris
sounds like its running rich and when you give it more air by letting it into that vacuum hose it runs better, could be wrong on this bit???
anyone any other suggestions or any more on what niall said.
was driving today and it cuts out when the revs drop say commig into a roundabout or traffic lights etc.its wrecking my head has to be something small cause was running perfect before i parked it up
id say either your afm or lamba sensor, id get different ones and try them out;)Quote:
Originally Posted by chris
its a brand new lamba sensor so shouldnt be that will see if anyone around has a z32 to try it in mineQuote:
Originally Posted by m-sykes
when you rev it to the floor how far does it go up on the rev counter?Quote:
Originally Posted by chris
i havnt rev'ed it that much really.didnt take any notice
besides that the car is driving fine not down in power or anything
rocker cover gasket was leaking so changed that today changed the manifold to block,manifold to turbo,turbo to outlet and outlet the turbo gaskets too.changed the oil and filter again threw in one of them engine flush things.new spark plugs and painted the rocker cover.its running perfect now thank god
i have this problem too when driving the car and when you stop it almost cuts out, i have cleaned the the iacv and it still does it, when it warmed up it fluctuates up and down a bit in the revs.
is it the plugs,
afm
02 sensor
fuel pump? as of latley a bit of a whinning when pressing the accellerator.
also i only flushed the iacv with carb cleaner when i took it off i didnt take it apart or anything.
HELP PLEASE
It might be worth trying the throttle position sensor, I had a few twincams do what your describing and it was the TPS.
i done a few things , i changed the spark plugs, no effect.
i cleaned the afm with electronic solvent cleaner ,then took out the 2 devices in the idle air control valve and cleaned them up both had springs in it and springs werent broken , im geussing one is for high idle and one for low idle.
put it all back together and it all worked fine