06 6.0 bucking missing when cold
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ok vref is staying at 5
icp 1200 1300 running down road
7-800 at idle jumping around when cold
ia1 reads 9987 more random numbers b776 and other random letter numbers
ipr 14.8 key on, during crank and at idle
mat reads -40 all the time
ia2 starts at about 60 when cold rises up to about 90 after 30 miles on my drive to work
all ficm voltages seem perfect no random drops or rises
so any thoughts on all that????
icp 1200 1300 running down road
7-800 at idle jumping around when cold
ia1 reads 9987 more random numbers b776 and other random letter numbers
ipr 14.8 key on, during crank and at idle
mat reads -40 all the time
ia2 starts at about 60 when cold rises up to about 90 after 30 miles on my drive to work
all ficm voltages seem perfect no random drops or rises
so any thoughts on all that????
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
IAT1 signal comes from the MAF sensor. I'd start by looking at the sensor, plug, and harness and monitoring MAF to see if it's reading scrambled eggs also.
Some trucks don't have a MAF sensor, I'm not sure what those values (IAT1 and MAF) would be with no sensor installed.
Some trucks don't have a MAF sensor, I'm not sure what those values (IAT1 and MAF) would be with no sensor installed.
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mike_v2v98
1987 - 1996 F150 & Larger F-Series Trucks
5
Dec 3, 2002 06:01 PM
