brunomedina Posted September 7, 2016 Share Posted September 7, 2016 People, I have a problem in my ford focus '01 zetec 1.8 16v petrol. The Dashbord DTC , show the code P103, accordind TIS ford , this is MAF problem,and my mecanichal plug the scanner in the car, and here the maf have a low voltage. I tried to clean the maf 2x but nothing changes. Ok , I bought a new maf , and the things get worst , the ilde rotation is worst the original and "dameged " MAF. A afraid the my PCM is dameged . In brazil a don't find good manufactures of MAF , the E-KLASS MAF i bought doesent work. Here in uk and europe, with manufactures of MAF we use. I very unhappy with this, because i did a good service in the car ( timming belt kit, acessories timming belt kit , oil , revision in the hydraulic steering , brake fluid , new fuel pump ) but the maf problem is very boring to me. Anyone can help and had his problem and how do to fix it ? Ford Brasil, don't produce anymore this part foi my car, because in brasil afte ten year the car discontued the manufactures doesn't have the obligation to built parts , and de paralelal parts in a lot of case don't have a good quality. Quote Link to comment Share on other sites More sharing options...
Fastlife91 Posted September 7, 2016 Share Posted September 7, 2016 Quote Quote If you have replaced the MAF sensor but are still having problems regarding mass air flow then get the wiring loom to the maf checked out out. I have been having a problem with MAF for about 1 year now, with the wiring to the MAF. swapped over the wires again and now the engine light will stay off ( YAY !!) But it is lacking power as though in limp mode, so maybe it just needs continually resetting until the engine light stays off but I have swapped the wires back and the engine light is on again for now but should be sorted soon once and for all. Good luck good luck good luck G Quote Link to comment Share on other sites More sharing options...
brunomedina Posted September 8, 2016 Author Share Posted September 8, 2016 7 hours ago, Fastlife91 said: G I will check out wires of the maf , I don't think in this part of the problem . Now a i need q good wiring maf cabe to test .Or i buy the cable ate junkward ou a new cable. I wiil thing it this week.It is the last thing to put my focus 100% But in my case the engine light doesn't stay on , onl the DTC P103 and diagnost from scanner . What manufacture of MAF or you don't need buy a new maf. I working with the possibilit to buy a new maf from uk , of good quality , in brazil , all maf for ford focus zetec are terrible and the ford dealer , they don't sell this part anymore. Quote Link to comment Share on other sites More sharing options...
Joss max Posted September 8, 2016 Share Posted September 8, 2016 Just on a long shot, Have you checked that all the pipes from air filter etc are sound and have no leaks in them ? Quote Link to comment Share on other sites More sharing options...
brunomedina Posted September 8, 2016 Author Share Posted September 8, 2016 8 hours ago, Joss max said: Just on a long shot, Have you checked that all the pipes from air filter etc are sound and have no leaks in them ? I checked , don't have false air entrace Quote Link to comment Share on other sites More sharing options...
Tdci-Peter Posted September 8, 2016 Share Posted September 8, 2016 17 hours ago, brunomedina said: I working with the possibilit to buy a new maf from uk This seller says he can send to Brazil for £10.50 postage: http://www.ebay.co.uk/itm/FORD-FOCUS-1-6-1-8-2-016V-1-8TDCi-ST170-Mass-Air-Flow-meter-Sensor-98AB12B579B1B-/301366195213 I have no experience of the seller, only what it says on the website. But I would further investigate the wiring before buying. Usually, these units have a +12v supply, two ground (0v) pins, a flow output signal, and a temperature output signal. Back-probing the pins on the connector should reveal which is which, and if that does not confirm a fault, I would test it on a bench with a psu & meter. 1 Quote Link to comment Share on other sites More sharing options...
brunomedina Posted September 9, 2016 Author Share Posted September 9, 2016 21 hours ago, Tdci-Peter said: This seller says he can send to Brazil for £10.50 postage: http://www.ebay.co.uk/itm/FORD-FOCUS-1-6-1-8-2-016V-1-8TDCi-ST170-Mass-Air-Flow-meter-Sensor-98AB12B579B1B-/301366195213 I have no experience of the seller, only what it says on the website. But I would further investigate the wiring before buying. Usually, these units have a +12v supply, two ground (0v) pins, a flow output signal, and a temperature output signal. Back-probing the pins on the connector should reveal which is which, and if that does not confirm a fault, I would test it on a bench with a psu & meter. I will do this test with my mechanical , The seller i bought the MAF from E-KLASS will send me a new maf to test. My friend will borrow me a original MAF in supbert condition to test to. I will report the situation soon, Thanks a lot people. 1 Quote Link to comment Share on other sites More sharing options...
brunomedina Posted September 14, 2016 Author Share Posted September 14, 2016 People , I tested the new MAF and the problem persist. Next week my mechanical will look all the systens to find the issue. In the scanner reading the MAF reading is blocked , displays 1.75 , the normal maf have to display 3,75. The journey continues. Quote Link to comment Share on other sites More sharing options...
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