need help, intermittent stalling
Thread Starter
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More Turbo
Joined: Jul 2009
Posts: 705
Likes: 12
From: Taxachusetts
where is the FICM relay box?
can't monitor vref as soon as it wigs out, the sgII locks up.
Tuned
Joined: Jun 2006
Posts: 420
Likes: 3
have you looked at the ficm main volts? the only reason i ask is my truck was stuttering once and a while like i was turning the key off while driving (only did it 2-3 times) but it wasn't long until i got a p0611 code and had my ficm out and down to Ed. the SGII is known for being great at reading pid's but lousy as a code reader. here's a link to a pdf PIOLET put together on what the normal operating values should be
https://www.ford-trucks.com/forums/1...-attached.html
https://www.ford-trucks.com/forums/1...-attached.html
Thread Starter
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More Turbo
Joined: Jul 2009
Posts: 705
Likes: 12
From: Taxachusetts
have you looked at the ficm main volts? the only reason i ask is my truck was stuttering once and a while like i was turning the key off while driving (only did it 2-3 times) but it wasn't long until i got a p0611 code and had my ficm out and down to Ed. the SGII is known for being great at reading pid's but lousy as a code reader. here's a link to a pdf PIOLET put together on what the normal operating values should be
https://www.ford-trucks.com/forums/1...-attached.html
https://www.ford-trucks.com/forums/1...-attached.html
On another note, I returned the tune to stock a bunch of egr codes came up. the tune shuts off the egr. If I have time I will pull it tomorrow. I'll probably be lazy and just reinstall the tune to shut off the egr.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Electrical issues are a bitch. With the SGII wigging out as soon as the problem happens I'd be thinking communication issue. I'd keep the Vref up all the time to see if it bounces around. IIRC there is a setting on the SGII to keep it on longer after the truck shuts down. Blade35 might know. You can also set the update rate to fast to see if that shows something (you may have already).
In the end, you may have to get a high end scan tool to find this problem.
Thread Starter
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More Turbo
Joined: Jul 2009
Posts: 705
Likes: 12
From: Taxachusetts
The FICM relay is in a small black box just in front of the brake booster under the hood.
Electrical issues are a bitch. With the SGII wigging out as soon as the problem happens I'd be thinking communication issue. I'd keep the Vref up all the time to see if it bounces around. IIRC there is a setting on the SGII to keep it on longer after the truck shuts down. Blade35 might know. You can also set the update rate to fast to see if that shows something (you may have already).
In the end, you may have to get a high end scan tool to find this problem.
Electrical issues are a bitch. With the SGII wigging out as soon as the problem happens I'd be thinking communication issue. I'd keep the Vref up all the time to see if it bounces around. IIRC there is a setting on the SGII to keep it on longer after the truck shuts down. Blade35 might know. You can also set the update rate to fast to see if that shows something (you may have already).
In the end, you may have to get a high end scan tool to find this problem.
, it's not that the sg2 shuts off, the display keeps displaying the last thing it recieved. so if it stumbled while boost was 22 psi and I took my foot off the throttle the boost value on the display would be 22 psi as long as the truck is running. If I try to scroll thru the pids, there is no value next to the ones that don't work and the few that do work will have a value.
the update rate is set on fast anyway.
thanks for the help. I hate electrical issues, electrons are like women, I have a hard time figuring them out and when I think I have, I'm usually wrong.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Well....at least that doesn't seem to be the problem
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Thread Starter
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More Turbo
Joined: Jul 2009
Posts: 705
Likes: 12
From: Taxachusetts
looking at the wiring diagram I have, trying to figure out how the obd port has power but only sees or receives signals/inputs from a few sensors.
looks like the ect dosn't reference or tie in with( I have no idea on terminology) anything else where the eot seems to. coincidence? I think not!
looks like the ect dosn't reference or tie in with( I have no idea on terminology) anything else where the eot seems to. coincidence? I think not!
New User
Joined: Feb 2014
Posts: 3
Likes: 0
2 things come to mind, first you say you plow with it. If in your area they use salt on the roads, trying removing the Cam sensor and check for rust buildup on the the mounting pad on the block. Second, it also sounds like you have Vref shorting out. A very common problem I have seen is the EBP shorting internally and pulling the VREF down. The fix, new sensor and pigtail. I would suggest going to a local International Dealer, if available. The pigtail from them is less than $15 the last time I bought one.
Thread Starter
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More Turbo
Joined: Jul 2009
Posts: 705
Likes: 12
From: Taxachusetts
update
while I was playing with some of the terminals and yanking on the wiring harness, the positive lead from I ran from the dc power alternator to the drivers battery was a little loose. Figured while I had the wrench out to tighten it I would look to see if there was an corrosion and clean it up. not really any, the copper was dark dirty color but not green. Put a little dielectric grease on the cable and reassembled. That was 2 days ago, haven't had (knock on wood) an issue since.
I don't see how the looseness would have affected it, I would have had to give a firm tug to pull it out of the connection. Maybe that and the dirty together? I have a feeling I moved something back while I was messing with terminal. time will tell.
while I was playing with some of the terminals and yanking on the wiring harness, the positive lead from I ran from the dc power alternator to the drivers battery was a little loose. Figured while I had the wrench out to tighten it I would look to see if there was an corrosion and clean it up. not really any, the copper was dark dirty color but not green. Put a little dielectric grease on the cable and reassembled. That was 2 days ago, haven't had (knock on wood) an issue since.
I don't see how the looseness would have affected it, I would have had to give a firm tug to pull it out of the connection. Maybe that and the dirty together? I have a feeling I moved something back while I was messing with terminal. time will tell.
Thread Starter
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More Turbo
Joined: Jul 2009
Posts: 705
Likes: 12
From: Taxachusetts
well that didn't last.
didn't make it out of the driveway to plow before it started stalling. Too bad for the truck I no longer care restarted it immediately it sounded like a over cammed big block so I just held the throttle to the floor till it cleared up.
after an hour of this it stopped doing it. I finished plowing my driveways
went out to plow today, more of the same. I noticed that when it coughed and stalled the eot would drop to something other than normal ( you might own a 6oh if you watch deltas more than the road) and the volts would be less than 14.5 which is what it usually is.
thinking it might be in the eot circuit. don't know almost don't care. miss my obs...
didn't make it out of the driveway to plow before it started stalling. Too bad for the truck I no longer care restarted it immediately it sounded like a over cammed big block so I just held the throttle to the floor till it cleared up.
after an hour of this it stopped doing it. I finished plowing my driveways
went out to plow today, more of the same. I noticed that when it coughed and stalled the eot would drop to something other than normal ( you might own a 6oh if you watch deltas more than the road) and the volts would be less than 14.5 which is what it usually is.
thinking it might be in the eot circuit. don't know almost don't care. miss my obs...
Lead Driver
Joined: Sep 2012
Posts: 7,825
Likes: 96
From: Manteca,Ca
well that didn't last.
didn't make it out of the driveway to plow before it started stalling. Too bad for the truck I no longer care restarted it immediately it sounded like a over cammed big block so I just held the throttle to the floor till it cleared up.
after an hour of this it stopped doing it. I finished plowing my driveways
went out to plow today, more of the same. I noticed that when it coughed and stalled the eot would drop to something other than normal ( you might own a 6oh if you watch deltas more than the road) and the volts would be less than 14.5 which is what it usually is.
thinking it might be in the eot circuit. don't know almost don't care. miss my obs...
didn't make it out of the driveway to plow before it started stalling. Too bad for the truck I no longer care restarted it immediately it sounded like a over cammed big block so I just held the throttle to the floor till it cleared up.
after an hour of this it stopped doing it. I finished plowing my driveways
went out to plow today, more of the same. I noticed that when it coughed and stalled the eot would drop to something other than normal ( you might own a 6oh if you watch deltas more than the road) and the volts would be less than 14.5 which is what it usually is.
thinking it might be in the eot circuit. don't know almost don't care. miss my obs...
Thread Starter
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More Turbo
Joined: Jul 2009
Posts: 705
Likes: 12
From: Taxachusetts
turbo was cleaned last june, spools up fine when the truck is running good. When I watch those pids they look fine. This is wicked frustrating