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Old 06-27-2013, 09:16 PM   #71
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P0103 is a Maf code, try cleaning it and check the wiring to it, reset the code if it comes back you may need a new one.
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Old 06-27-2013, 09:19 PM   #72
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the issue lies where the car wont operate under load.. sometimes it runs for a few blocks sometimes it wont make it out the parking lot... once it dies... it wont come back on for at least a few hours.... fuel pump is new and its reading 40 psi incoming... fuel filter has been replaced, wires, coil pack, plugs, valve cover gasket... i posted a video up a few post... its not great but essentially under idle it acts like it starves for fuel then floods... a fluctuation of idle you can say....

i have the sct chip with a tune from Focus Power... now to datalog and get more info i purchased an xcal3...

that maf code.. came on at the beginning of the issue... i replaced the maf erased the code but still no luck.. code never came back on till today..
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Old 06-27-2013, 09:22 PM   #73
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Quote:
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P0103 is a Maf code, try cleaning it and check the wiring to it, reset the code if it comes back you may need a new one.
bad MAFIA?
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Old 06-27-2013, 11:52 PM   #74
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what kind of g/s reading are you getting for the MAF at idle and WOT?
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Old 06-28-2013, 08:21 AM   #75
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It wasnt letting me do any readings yesterday with the xcal. all the parameters said invalid.. it was late so i didnt keep trying.. today after work ill try to hook up again..
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Old 06-28-2013, 12:11 PM   #76
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Have to come back to what I said originally, vac leak...and it should be massive. When you take the maf out do the vac leak test suggested before, try putting 6-7 psi in the IM from the throttle or where the maf attaches too. Either from the flange of the throttle or a crack in the IM...
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Old 06-28-2013, 01:45 PM   #77
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Ok it's Friday so ill head to menards and buy the stuff for the tester... I was just looking at the link u provided and its not difficult at all.. Idk why my kept thinking it was more complex... God if its a vac leak that's kept me grounded for this long I'm going to be so pissed lol..




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Old 06-28-2013, 02:08 PM   #78
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No hard at all and you'll need it anyway...either a huge one or a couple of them.
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Old 06-28-2013, 05:42 PM   #79
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Quote:
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it wont come back on for at least a few hours....
This sounds like a bad ecu to me.
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Old 06-28-2013, 05:50 PM   #80
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Think what he says it start and stalls immediately while it's hot, when cold it will idle higher until it warns up.
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