another maf question

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mark666freelander

mark666freelander

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ok guys so i have been refunded for my new maf off of ebay because there out of stock according to the seller but anyway after a good rummage today in the scrappy i got my hands on 2 maf's same part numbers etc. tried them both still no change at all no power under 2000rpm. i know its possible that the 2 maf's i picked could be u/s. could i be thinking its the maf and its not ? i need to know if you disconnect a working maf and reattach it when the engine is running is there any change in engine noise or the running of the engine when connected back up ?

this is really starting to test me now i feel the box of matches coming out soon :)

also is the mil ment to come on when the maf is unplugged ? because it dont on my freelander

mark
 
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No experience with a disconnected maf myself but what I can make out of what I've red in other posts I think you can only feel a difference when driving the car, disconnect and reconnect will not give any difference on tickover in my opinion. Not like a petrol engine when you disconnect one sparklead. Also don't think disconnecting the maf causes a dashlight to come on. As said no personal experience but others will probably soon give better answers. Good luck.
 
willo said:
No experience with a disconnected maf myself but what I can make out of what I've red in other posts I think you can only feel a difference when driving the car, disconnect and reconnect will not give any difference on tickover in my opinion. Not like a petrol engine when you disconnect one sparklead. Also don't think disconnecting the maf causes a dashlight to come on. As said no personal experience but others will probably soon give better answers. Good luck.
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cheers for your reply mate ive driving it a good 30+ miles with out the maf connected and cant see no change. i know if you unplug the maf on a petrol engine when its running it would be apparent. am stumped with this one

mark
 
FREEL4NDY said:
Get yourself a cheap obd reader off ebay will read all engine related fault codes.....
Ansd save you lots of faannying about. :D
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have done mate ive got a elm 327 reader that plugs into laptop but it doesnt pick up anything. it cant be down on so much power under 2000rpm and not have someting wrong with it can it ?

mark
 
All your ecu will do is set itself to a default value which will flag no mil lamp but get you where you need to go..... how many pins does your maf sensor plug have on it???
 
FREEL4NDY said:
All your ecu will do is set itself to a default value which will flag no mil lamp but get you where you need to go..... how many pins does your maf sensor plug have on it???
Click to expand...
its got 5 pins mate ive tryed looking for a way to test it with a volt meter but had no such luck

mark
 
Rule of thumb. . . . .if engine running with loss of power or suspect maf , then dissconect maf and if improvement is noticed ,then maf is suspect, note rule of thumb as the maf is a big subject a lot has been written about it in this forum so go to search or try rover rons web site that really usefull . . . . . .
 
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