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(Post Link) post #1 of 11 Old 27-07-06 Thread Starter
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Hello

hi im new to the forum but not to alfas i own a 156 sillyspeed
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Well Happy Re: Hello

Hi
New to Forum. Own a 156 which at the moment has A/C problems and i think also needs a new air flow meter. Spluttering and jumpy with revs all over the place. Lacking in power when first pulling away with low revs.
Can anyone give me some pointers about the Air flow meter? ie is it easy to change yourself or do you need to go to a garage.
Thanks
Rev.
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Re: Hello

Hello and Hello.


The air flow meter is easy enough to do yourself, or a garage (doesn't need to be a main dealer) would charge no more than an hour if you didn't feel happy doing it.
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Ok thanks for that, will probably get it done at a garage to make sure its done correctley.
Just got to source one that does not cost the earth now. Found one on ebay for 65 inc del. otherwise its around 140 from ebspares.co.uk or similar.
Thanks again
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(Post Link) post #5 of 11 Old 27-07-06 Thread Starter
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Re: Hello

have ya tried power alfa for the part, seems strange to pay a garage to do it changing the maf is quite simple ive got a guide somewhere ill go look
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Hi, if you have a guide that would be great, always up for saving some pennies to spend on something / someone else.
Don't suppose you can lay your hands on a wiring diagram for the A/C can you??
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by the way, fantastic picture of you / friend..
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(Post Link) post #8 of 11 Old 27-07-06 Thread Starter
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Re: Hello

thanks, do ya now exactly whats wrong with the air con symptons etc
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I bought the car from the company i work for (Ex company car) but the owner was a the type who looked after his cars so its ok.
He did not like A/C so never used it. This gave me the impression that because of lack of use it just needed regassing.
Had it leak tested and regassed last friday but still did not work.
Bypassed all the wiring to power up the pump direct from the battery (a qualified auto electrician did this bit) and the pump started to run so came to conclusion it must be the wiring between the pump and the dashboard. He asked me to get a wiring diagram so he could check.
Have since heard it may be fuse No. 9 (cigarette lighter too that does not work and never has) have yet to check this because am at work now, will check at lunch.

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(Post Link) post #10 of 11 Old 27-07-06 Thread Starter
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Re: Hello

firstly have ya tryed cleaning the MAF this can work wonders

.: Cleaning the MAF sensor :.
It is a well known problem that the airmassmeter (MAF) can be the cause
of a lot of problems. In most cases where the engine runs bad, the
reason is a bad MAF sensor. Unfortunately, the Alfa Romeo diagnostic
system can't tell that this is the problem.

Before you go to the garage with your problem or buy a new MAF, it can
be a good idea to clean it first. The MAF is very easy to
replace/remove/install. If this works, it can save you some money
because the MAF sensor is a bit expensive. . But beware that this is a chanse to take.
You can also make things worse if things go wrong as the sensor is
quite sensitive!

The problem is old oil and dust on the measurer thread that gives
rubbish measurements. A bad MAF will give the engine either to much
or to little fuel because the readout is wrong.

There are two Torx screws and they are a special kind with a little
pin in the middle, so you might need a special tool. Remove the cable
plug and then unscrew the two torx screws. Then gently pull out the
MAF sensor.



To clean the thread you can use electronics cleaner (a type that leaves
no remains) and spray it into the little hole on the end of the MAF (1).
It will then go trough and out the little hole under the MAF (2).



Alternatively you can just put the MAF in Isoprophylalcohol. Then gently
blow it dry or just let it dry for some minutes untill it is completely dry.
Now reinstall it and see if your car drives like it should. If it does, you
might have saved a bunch of money. If not, you should book an appointment
at your local garage.


This article is based mostly on the great article in www.vagcars.dk
(YES, they use the same Bosch MAF as our Alfa Romeo's).

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Well Happy Re: Hello

Thanks for that, its worth a try but like you say if it goes wrong then will i be without the use of the car until get it replaced.

One question is can the AFM stop the car working altogether or will it just remain chuggy and spluttery. I do quite a lot of miles some weeks and would hate to break down miles from home.

Will set aside some time to clean i think.

One other thing, how do you know so much about cars etc. ??

Ta. N
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