AFM - ok to run disconnected ?? Clean Regular ??

[ESDavey]

Griffith 5ltr wont rev freely & not beyond 4k rpm. Disconnected the AFM and runs like a dream (apart from idle which is a bit rough - to be expected). I fitted the current AFM in 2009 after some serious lumpy running.

I'm in Madrid & need to find a can of AFM cleaner before taking the meter apart but have 2 Questons :

Q1 : Can I run with the AFM disconnected for an extended period (ie next weekend planned a 350mile trip) ?
Q2 : Does anyone clean their AFM on a regular basis ? Service item ?

[blitzracing]

Dont run without it, the MPG will be terrible as the ECU has no fueling info, so it goes into "get you home" mode and runs on the throttle pot input only. They are not service items, but they do get really cooked in the TVR which cant be good for the electronics inside and you cant really clean them. When you get a new one, make sure its Genuine Lucas, not some nasty Chinese copy that looks exactly the same, but without the Lucas Logo.

[ESDavey]

Thanks, I will replace ASAP.

I did take it apart & carefully cleaned best I could. There was a dead butterfly against the mesh so that didn't help !

[Barreti]

Have you tried running without the long AFM to air filter pipe or without the air filter itself?
Perhaps it's the pipe collapsing or even the filter.

Having taken the cover off the electronics box on my old AFM I'm not surprised the electronics get cooked, and one thing circuit boards and electronic components hate is heat. I've got a heat shield on mine now and would recommend everyone has one.

The AFM can be tested to some extent. Have you checked it with a multi meter?

[FlipFlopGriff]

Barreti said:

Have you tried running without the long AFM to air filter pipe or without the air filter itself?
Perhaps it's the pipe collapsing or even the filter.

Having taken the cover off the electronics box on my old AFM I'm not surprised the electronics get cooked, and one thing circuit boards and electronic components hate is heat. I've got a heat shield on mine now and would recommend everyone has one.

The AFM can be tested to some extent. Have you checked it with a multi meter?

I've just ordered an extra heat shield also as I know you wanted one. Didn't know you had one.
FFG

[PeteGriff]

FlipFlopGriff said:

I've just ordered an extra heat shield also as I know you wanted one. Didn't know you had one.
FFG

Hi Paul, if you wanted to find a home for your spare heat shield I will buy it from you mate, regards, Pete

[FlipFlopGriff]

PeteGriff said:

Hi Paul, if you wanted to find a home for your spare heat shield I will buy it from you mate, regards, Pete

Thanks Pete,
FFG

[FlipFlopGriff]

John Zubak - hes advertising in the classifieds. Bought the inner wing heat shields also but I know he is out the country on business at the moment.
FFG

[ESDavey]

Well a careful clean & strong vacuum cleaner appears to have done the trick !
If only all TVR problems could be fixed as easily !

[ESDavey]

Wow - new AFM arrived in Madrid this morning from Racing Green via TNT 24hrs after ordering. That impressive work by both companies !

[Barreti]

Good news on both counts eh. so you have a spare AFM now too. Hang on to that !