j999dpt Posted September 16, 2009 Share Posted September 16, 2009 hello, ive had my td5 110 for around a year now and recently its been guttless takes ages to come on boost and never fells like it has the original amount of power. i tried using my mates OBD2 compliant diag reader but it would not connect so cant see the air flow sensor readings. i disconnected the air flow meter and its back to normal. my question is how long can i run with it like this will is do any harm. also if we do get it on diag what readings am i looking for? thanks Quote Link to comment Share on other sites More sharing options...
BogMonster Posted September 16, 2009 Share Posted September 16, 2009 Forget computers just change the AFM if it is ok without it connected. A low-reading AFM usually doesn't show as a fault code anyway, only if it is completely dead. Disconnecting it means the ECU runs at default settings which if it fixes the problem means the AFM is faulty and reading too low. You can run like this but the engine will run better with a working AFM so fit a new one and the problem should be fixed Quote Link to comment Share on other sites More sharing options...
101sean Posted September 16, 2009 Share Posted September 16, 2009 Yep, agree with BM, had same symptoms on my brother in laws 130, new AFM cured it. Quote Link to comment Share on other sites More sharing options...
gazelle Posted September 16, 2009 Share Posted September 16, 2009 Yep, agree with BM, had same symptoms on my brother in laws 130, new AFM cured it. Agree with both above. Same symptoms - just replacing it has restored power. Martin Quote Link to comment Share on other sites More sharing options...
Phil Posted September 17, 2009 Share Posted September 17, 2009 Might try this on mine, which is an '02, and possibly a little breathless. Whereabouts is the air-flow meter and what's the part number? Many thanks, Phil. Quote Link to comment Share on other sites More sharing options...
landy andy. Posted September 17, 2009 Share Posted September 17, 2009 Just after the air filter box. Andy Quote Link to comment Share on other sites More sharing options...
Phil Posted September 18, 2009 Share Posted September 18, 2009 Thanks, Andy; is it what I've seen referred to as the 'MAF sensor'? Does anyone know the part number? All the best, Phil. Quote Link to comment Share on other sites More sharing options...
BogMonster Posted September 18, 2009 Share Posted September 18, 2009 Yes it is - MAF sensor = Mass Air Flow sensor = airflow meter MHK100620 is what you want. Quote Link to comment Share on other sites More sharing options...
bombx3 Posted September 18, 2009 Share Posted September 18, 2009 Yes it is - MAF sensor = Mass Air Flow sensor = airflow meter MHK100620 is what you want. Great stuff to read about as i have a td5 and it is not good on the bottom end entill the booost starts which comes in quite hard but below that it is carp (wouldnt be able to tow a trailer as it is as i would have to rev it real hard to pull away) Quote Link to comment Share on other sites More sharing options...
Phil Posted September 18, 2009 Share Posted September 18, 2009 Thanks, BM. Quote Link to comment Share on other sites More sharing options...
Ben_J85JTY Posted September 19, 2009 Share Posted September 19, 2009 A word of advice, The cheaper ones on ebay are not true MAF units. A true AMF will have 2 wires which will calc the air flow, theses cheaper units have a resistors instead and are little better than running without the AFM connected. Go on, ask me how I know! Quote Link to comment Share on other sites More sharing options...
Anderzander Posted September 19, 2009 Share Posted September 19, 2009 I think I'll try disconnecting mine and see if it makes a difference. I drover a friends Td5 the other day and it picks up much quicker than mine. Only other difference is that he has removed the EGR - but I'd be surprised if that made such a noticeable difference...? Quote Link to comment Share on other sites More sharing options...
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