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fixed ficm still have white smoke-what next
ok so ill start from the beginning and see if anyone has any ideas .2004 f350 130k miles-banks six gun,airraid,mbrp dual cat back,arp studs
ive had a harness issue for some time,on occasion i will get a no start.i found if i jiggled the thick part of the harness that runs down the drivers side valve cover,she fires right back up.this has gone on for at least 20k miles.acouple weeks ago i had this problem but i did my thing and sure enough she fired right up and i was on my way.later that day i came out of a parking lot and my truck stumbled a bit and puffed some black and grey smoke,was alittle hesitant but she made it home just acouple miles.at that point it threw a po405,so i cleaned the egr and she ran fine,but smoked like a freight train(white,kinda grey,but smelled like diesel,i think at least.o yea by the way i have had my arp and my gaskets done,as well as oil cooler and egr about 30k ago.i do run mbrp cat back,banks and airraid intake,thats it.)
temps all seemed fine eng temp 186 eot 191.even after the smoke the truck still ran fine.i then parked in my driveway nose doen and let it sit and cool down overnite,there wasnt a puddle but just a bit of moisture on egr,couldnt tell if it was coolant or raw diesel.(looked like fresh motor oil)i decide to check ficm,got over 45 volts at key on as well as running.after test the truck seemd a bit hard to start.at this point im very lost and confused,as originally i thought egrcooler and oil cooler.so i did what i had to and to the dealer she went.now after there diagnosis,they have told me all systems seem normal,injectors,egr,oil cooler,etc....they did unhook the banks.but they say the ficm is bad,told me they could get it to test bad.i followed the steps to test,so i thought.they told me i needed to test with a 10ohm resistor.is this correct?needless to say they told me $1400 plus the 230 to troubleshoot.told them i didnt have that much and he proceeded to tell me they would put it back together for me,he sounded annoyed.i let them know about the harness issues and everything else,they told me almost $3000 for harness,ouch.
1.could it be just the harness causing my problems?
2.did i check ficm correctly?
3.if its the harness is it something i can change myself,and they told me
the harness is 1 piece.i have found ficm harnesses as well as main
and injection harness on ebay.are they the same?
im so lost and having a bad time finacially,any suggestions would be great.
ok so i got the truck back and fixed ficm,nowi get a contant 48.4 volts.but she still smokes,only codes were 403 and 405.what else would cause this smoking,smells more like fuel not coolant,doesnt seem to be overheating or burning coolant in the short runs i take.