Sources For Properly Refurbished Or New Afm's?

[ATK 140 1 Cars]

As above, would like to replace the AFM on my '91, anyone got any sources? Dont want to risk an Ebay job in case I end up with a dud.

 

Cheers all.

[welshpug 1,657]

Atp electronics is the only source i know of, seen their sticker on many an afm.

[will1991 11 1 Cars]

I've spoken to Atp about getting mine done, although haven't got round to it yet, I think they charge something like £120-£150 from memory.

[welshpug 1,657]

It was £150 exchange 7 years ago

[hoodygoodwood 70 3 Cars]

For that sort of money I assume they must retrack the AFM ? There is very little inside one , prise the top black cover off carefully and have a look .

What is the problem with yours ? do the full Haynes multimeter check on it and if you feel confident move the wiper arm to run on a new area of the track .there may be a guide to that on here .

Buy a cheap one off e-bay and work on that as a spare if you do not want to chance it with yours .

I have tested loads of these AFM and the only thing I have had wrong was one with the air temperature sensor broken , the readings across all are very similar and not quite as linear as Haynes would have you believe .

Rough running on these engines is often blamed on the AFM but there are 5 or 6 other ( cheaper ) things to check first .

[ATK 140 1 Cars]

For that sort of money I assume they must retrack the AFM ? There is very little inside one , prise the top black cover off carefully and have a look .

What is the problem with yours ? do the full Haynes multimeter check on it and if you feel confident move the wiper arm to run on a new area of the track .there may be a guide to that on here .

Buy a cheap one off e-bay and work on that as a spare if you do not want to chance it with yours .

I have tested loads of these AFM and the only thing I have had wrong was one with the air temperature sensor broken , the readings across all are very similar and not quite as linear as Haynes would have you believe .

Rough running on these engines is often blamed on the AFM but there are 5 or 6 other ( cheaper ) things to check first .

 

 

Cheers buddy, my GTI runs well, but when it's cold, I have to keep the throttle on for 10 seconds or so to allow it to tick over, otherwise it cuts out. When it's warm it does not happen and the idle is really good.

 

What else to you recommend checking etc to try to solve the cutting-out-when-cold? I've got a known good SAD on there at the moment so other than that I'm all ears?

[GilesW 41]

Sounds like the coolant a sensor surely?

[ATK 140 1 Cars]

Not sure mate, you tell me hah hah!

[p1234 22 2 Cars]

Could be the oil temp sensor under the oil filter.

[welshpug 1,657]

Could be the oil temp sensor under the oil filter.

Errr,

 

1. Its on the back, not front.

 

2. It has no connection whatsoever to the engine management.

[p1234 22 2 Cars]

What is the sensor under the oil filter?

[welshpug 1,657]

8v xu, there wont be one.

[ATK 140 1 Cars]

Any ideas on what could be causing my cold-start issues, welshpug?

[ALEX 98 1 Cars]

Could be a weak spark, check your earths.

 

Even after cleaning mine up on my project it still gave me problems, I ended up fitting a new earthing strap direct to the battery for the ignition.

[Anthony 1,003]

It'll likely be a setup issue.

 

Warm idle is a doddle to get right - cold idle, particularly first turn of the key, without throttle takes a fair bit of tweeking to do.

 

It's the one thing that most people can't get right and hence the assumption is that that's how 8v's should be.

 

To give you an idea the 1.9 8v that I recently sold started first turn of the key and idled pretty well from cold with no throttle assistance - a touch low/chuggy for a couple of seconds, then around 1100-1200rpm whilst warming up before eventually settling down to a 900-1000rpm idle warm. The only thing that let it down was that the SAD was a little lazy to close in cold weather

[ATK 140 1 Cars]

It'll likely be a setup issue.

 

Warm idle is a doddle to get right - cold idle, particularly first turn of the key, without throttle takes a fair bit of tweeking to do.

 

It's the one thing that most people can't get right and hence the assumption is that that's how 8v's should be.

 

To give you an idea the 1.9 8v that I recently sold started first turn of the key and idled pretty well from cold with no throttle assistance - a touch low/chuggy for a couple of seconds, then around 1100-1200rpm whilst warming up before eventually settling down to a 900-1000rpm idle warm. The only thing that let it down was that the SAD was a little lazy to close in cold weather

 

 

Any guides mate?

[welshpug 1,657]

Haynes workshop manual gets you a very long way.

[Bobbafett 49 2 Cars]

I just bought a brand new one for my PH2 cat 1.9 off eBay 90 quid delivered.

[Daviewonder 533 3 Cars]

That's expensive for a Haynes manual.

[Bobbafett 49 2 Cars]

haha, I meant a new AFM