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Discussion Starter #1
Here' s a problem: when I start cold, engine reaches 1200 rpm. After a few hundred meters of driving, when I brake to stop, rpm drop to 600, seems like engine is going to turn off, and then again reaches 1100 rpm. This happens only when engine is cold.
Tried with new temperature sender, new lambda probe, new ECU, new AFM, new injectors, new EGR valve, new thortle position sensor, but the error is always present!
Any idea? Computer tester shows no errors!
Please help me!
 
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Have you checked all your rubber pipes, especially intake? Sounds like the engine is coping ok although I'm not familair with the 8v.

wrinx
 

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Discussion Starter #3
All ruber pipes are new! :( It seems like air leak... Could it be rpm sensor? Problem is present almost 2 years (!!!!!). Tried everything :(
 

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no wonder your nick is "arrrrr" :(

I wish I could say anything to help fella. :(

Throttle body and idle control valve clean and in good nick? :rolleyes:

Hum
 

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Discussion Starter #6
Tried with another idle control valve, then tried with new idle control valve, but nothing! Cleaned the throttle body, but :(
Now I will try to clean fuel system, with new fuel pressure regulator. Maybe this will do :( :( ...
 
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aaarrr said:
Here' s a problem: when I start cold, engine reaches 1200 rpm. After a few hundred meters of driving, when I brake to stop, rpm drop to 600, seems like engine is going to turn off, and then again reaches 1100 rpm. This happens only when engine is cold.
Tried with new temperature sender, new lambda probe, new ECU, new AFM, new injectors, new EGR valve, new thortle position sensor, but the error is always present!
Any idea? Computer tester shows no errors!
Please help me!
 
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Hi. Mine is a 1995 1.7 TS. I also have a similar problem which I've been dragging around for over a year. It only appears sporadically, and only after a good 50km or so and with engine at warm running temperature.

From idling I get an initial jump to 3000 or more revs then a dip to 400 or 500, sometimes a massive cloud of black smoke, and a loss of power as if the thing was only firing on two pots.

The car is now with a main dealer in Barcelona who can't find anything wrong in a static diagnostic test. Predictably, the fault didn't show when they road-tested (They did manage to buckle the bonnet lid by driving off into the wind without shutting it, however).

Any suggestions most welcome
 

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Discussion Starter #10
Tried with another fuel pressure regulator and fuel pump, but nothing new! :rant:
Thanx for suggestion valvestation, will try with another ignition coil and plug cabels.
 

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Discussion Starter #11
valvestation said:
I think your problem is plug cable or ignition coil. Computer tester will not show these two problem.
YOU ARE THE MAN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :cool:
FINALLY after so many years of walking in darkness...
The problem was with 1# plug cable that burnt out and damaged ignition coil. Replaced and FINALLY everything is ok!
Mister Valvestation THANX! :)
 

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Hi aaaarrr

My car is at the garage for the 4. time with the same symptoms as you describe. The symptoms seems to have gotten worse over the years.
The garage haven't been able to locate the fault so far!! Allmost everry sensor has been exchanged with no luck.
This time i adviced them to have a new coilpack ready to try. So now i'm waiting for my phone to ring with good news.

It's just unbelievable that a bad coil can cause these symptoms, don't you think? How can i be that temperature dependant.
Do you think it's running on 6 or 7 sparkplugs when the fault is present. I have lots of questions on the subject!

Maybe you can enlighten me a bit more?

I just want my car back:rant:
 

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Discussion Starter #13
It was ok only 1 week. After that, symptoms came back.:(
That was because I disconnected ECU, and error was deleted...:(
Said that I tried with almost every sensor, but not with NEW air flow meter (AFM). Somewhere on this forum found how to renew AFM, with no luck.

But I learned a few things after opening black cover of AFM: if you move wiper arm inside AFM, you can vary idle rpm. Also when changed strip inside with another one, when cold, engine starts but stops instantly. On second try, engine starts without the problem (?!). How to explain this?
Yes, AFM is not calibrated anymore, and spring tension is not good for another strip, but why on second try engine runs ok?
Also managed to "provoke" error just by connecting ohmmeter on AFM while engine running...
I would like to try with new AFM, but in my country it is quite expensive - 750 EUR.

With new plug cable and ignition coil my car goes more smoothly.

Hope that helped you somehow...
 

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aaarrr said:
I would like to try with new AFM, but in my country it is quite expensive - 750 EUR.
Hey aaarrr, (sounds scottish doesn't it? :) ) did you try eBay.co.uk? If you do a search on "alfa air flow meter", you'll see plenty, and usually they seem to go for less than 200 EUR, shipped worldwide.

Hope this helps.
 

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Aaarrr

Did you change all your plug leads?
This intermitent symptom is common with silicone leads that are breaking down inside.

This can cause a current break when either hot or cold - I have experienced similar symptoms with other cars (one only did it when cold, the other only when hot) computer diagnostics failed to pick it up both times!
 

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Discussion Starter #16
pierre_samanni said:
Hey aaarrr, (sounds scottish doesn't it? :) ) did you try eBay.co.uk? If you do a search on "alfa air flow meter", you'll see plenty, and usually they seem to go for less than 200 EUR, shipped worldwide.

Hope this helps.
Tried, but mine is old 2.0 8V, AFM if big, aluminium one, on ebay you can find only plastic AFM for 16V that is new...:(

Will try again!:)
 

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Discussion Starter #17
gamphy said:
Aaarrr

Did you change all your plug leads?
This intermitent symptom is common with silicone leads that are breaking down inside.

This can cause a current break when either hot or cold - I have experienced similar symptoms with other cars (one only did it when cold, the other only when hot) computer diagnostics failed to pick it up both times!

No. Changed only 1#. You gave me an idea! Will check continuity of all plug cabels!
THNX!
 

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Discussion Starter #19
Plug cabels are ok... Tried to adjust AFM past few days, even tried with another,same age AFM from my friend, and now I am 100 % sure that is the problem.
Now have to find new AFM...:)
 

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Plug cabels are ok... Tried to adjust AFM past few days, even tried with another,same age AFM from my friend, and now I am 100 % sure that is the problem.
Now have to find new AFM...<img src="http://www.alfaowner.com/Forum/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" />
Hi friend

AirTouch idling problem resolved?
 
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