wont connect to OBD
#1
wont connect to OBD
hi i have a 03 f-150 triton 4.6 2 wheel drive crew cab, went to get it inspected this afternoon and it passed mechanically but the truck wouldnt respond to the obd emissions test, it simply wouldnt give a signal back to the computor, i have 60 days to fix it but id like to get it done soooon please help, what could it be and where should i start??? thanks alot
#3
ok so i read the rejection report, and it turns out that everything passes except for the MIL inspection (malfunction indicator light) (check engine light), the light isnt on, no trouble codes come up, ive taken it to 2 seperate places and nothing comes up its all clear. could this have been tampered with by the dealer to sell this vehicle quick and get rid of it?? what else should i look for, the dealer said they would look at it but theyre an hour away and like everyboody else on here i work all week long crazy schedule no time for that. If i have to i will take it back for them to look at but im trying to avoid that as you can see. the truck is mint, and im just hoping its something stupid and small but we all know what happens when we hope for a quick fix.
thanks for all the help guys,.
thanks for all the help guys,.
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#8
However, if the bulb is burned out, missing, or otherwise does not come on during the bulb prove-out, you will never get past an OBD based emissions test and you won't be getting your new plates.
Steve
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#10
had a 93 f150 i was working on. they had pulled the bulb out for whatever reason. would not start until i put it back in.
#11
had a 93 f150 i was working on. they had pulled the bulb out for whatever reason. would not start until i put it back in.
Steve
#12
well the fuse is fine im begining to believe that its something to do with the machine that they used to inspect the truck because like i said everything else that had to do with the computer inspection portion passed, it was just the MIL that wasnt reading in the machine they used, ive gone through the truck over and over again nothing broken no wires stripped spliced everything looks fine like new, i need some help should i take it somewhere else and have them try to inspect it and bite the 45 bucks if it fails or what, im reluctant to return to the dealer and have it serviced they were kind of rude, but i dont want to throw money at somehting that needs professional attention, i appreciate it thatks alot.
#13
ok so once again i have the inspection report in font of me under the emissions portioon of the test which failed it states: KOER*** KOEO*** MIL status: rejected unable to communicate Readiness monitors: unknown Diagnostic trouble codes: unknown
now i also noticed that under the vehicle description where it states how many cylinders the engine has it says 6 not 8 its a tritonV8 so would this set something off in theyre computor and automatically reject it?????i have the feeling that im on to something or maby not but its something new that i probally should have stated in the first post sorry and thanks alot guys...
now i also noticed that under the vehicle description where it states how many cylinders the engine has it says 6 not 8 its a tritonV8 so would this set something off in theyre computor and automatically reject it?????i have the feeling that im on to something or maby not but its something new that i probally should have stated in the first post sorry and thanks alot guys...
#14
#15
You post is a little confusing. If they tell you the MIL is "ON" when it isn't yet it comes "ON" at KOEO that doesn't make sense. They tell you you don't have any DTCs on the report so why don't you just show them that the MIL illuminates at KOEO? That way they'll know the lite works. It sounds like you have a network problem, but in order for their computer to figure out what type of vehicle you have and how many cylinders it has their computer had to connect to the vehicle network via your DLC.
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