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MAF,MAF,MAF-NAFF NAFF!!??!!
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Old 26 Sep 2005, 06:23 PM   #1 (permalink)
Young Scooby
 
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MAF,MAF,MAF-NAFF NAFF!!??!!

Little question for any tech heads out there! I own a MY94 STI but when i start it up on a morning i need to keep the revs up of she'll stall :t_oops: which is very ops: & also a couple of minutes later the revs fluctuate btween 1000-2500 rpm (not very often!!). Which is very annoying especially when u pull up at the lights & there is a vicar next to me in his ford fiesta,thinking i want a race :twisted: :twisted: :twisted:

So would the MAF sensor be the thorn in my side :!: :?: :!:

Thanks for any replys... :punk:
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Old 26 Sep 2005, 07:52 PM   #2 (permalink)
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Hi quick question, does the engine die if you remove the lead from the maf sensor?

FYI, Should not use any throttle on start up as the ecu reads whats happening and adjusts the mixture accordingly :wink:

Buzz
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Old 26 Sep 2005, 09:59 PM   #3 (permalink)
Young Scooby
 
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MAF!!??!!

To be honest i hav'nt tried that disconnecting the MAF sensor yet but i never start it up via the gogo pedal. Will give it a try tho & i'll see what happens...

Thanks for the reply 8)
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Old 26 Sep 2005, 11:17 PM   #4 (permalink)
Young Scooby
 
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clean out idle control valve,
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Old 27 Sep 2005, 07:05 PM   #5 (permalink)
Young Scooby
 
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Decided to unplug the MAF sensor today after the engine has warmed up and the engine died straight away - is that normal :wall: But havent cleaned out the idle control valve yet.....

Cheers for any replys :slap:
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Old 27 Sep 2005, 07:41 PM   #6 (permalink)
Young Scooby
 
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if you take off big plug on top of control valve (two screws)there is a little pole, this should rotate freely, if there is any lumpy or sticky feelings while turning it needs cleaning. in fact i would clean it out anyway. in the last picture you can see green part on valve, mines was black with gunge. after cleaning it runs great now.
on manifold side there is a red rubber thingymajiga clean this also(picture)
the sensor also has a water supply, i cleaned mine while still connected to water, you also might have to unbolt intercooler and push back a little(not remove)because it is tight in there, hope this works for you, you may aswell try as its free and a good place to start
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Old 27 Sep 2005, 07:49 PM   #7 (permalink)
Young Scooby
 
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cheers mate,if the weather is fine this weekend i'll get me tools out & give it try

Many :respect: dude....
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Old 27 Sep 2005, 07:57 PM   #8 (permalink)
Young Scooby
 
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get your head into the pre 97 workshop manual its awsome, i have bought a few off ebay but they were shit compared to this. it covers us with early import models, which i struggled to get any info on for ages, now i would take an import as opposed to uk model everytime and not look back cheers m8
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