lucerne tractor Posted August 2, 2012 Share Posted August 2, 2012 This pops up alot, usually when taking off from low in the low rpm range, under 1200 mostly, sometimes when I let off the throttle and the engine brake kicks in at higher rpms, seldom but once in a while out of the blue while running a steady highway rpm. It comes on active then goes right to inactive, I push enter and it;s gone. Before going to the dealer I would like a little education on what/where it is and why this code keeps going off. Thanks in advance Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/ Share on other sites More sharing options...
rsb502 Posted August 7, 2012 Share Posted August 7, 2012 Variable Geometry Turbo position sensor, thats is the sensor that tells the computer what position the sliding nozzle in your turbo is in, Im guessing this is on an AC engine but none the less it means the little electronic box on your turbo has an issue or your turbo is acting a fool either way it sounds like a turbo swap in your future (unless they are swapping the control modules seperately now) Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-132625 Share on other sites More sharing options...
lucerne tractor Posted August 12, 2012 Author Share Posted August 12, 2012 Thanks Superdog, I have to get this checked into soon. Need to check to see if it's a exchangable controll box. The turbo is fairly new. There is a rig on it that looks to be vacume controlled that pushes a rod in and out, it had a leaking diafram when I bought it, they just changed the diafram, maybe the unit is bad? It is an AC engine. Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133137 Share on other sites More sharing options...
staxx Posted August 13, 2012 Share Posted August 13, 2012 should have 3 pin connection at turbo this pins get loose over time from the fan blowing air on it causing it to vibrate fix is to replace pins in connection first and retest operation Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133356 Share on other sites More sharing options...
staxx Posted August 13, 2012 Share Posted August 13, 2012 Not the green wire connection that would be your turbo wheel speed sensor the rectangle connector wire wire lock is the one your looking for. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133370 Share on other sites More sharing options...
hatcity Posted August 13, 2012 Share Posted August 13, 2012 DO NOT cut the blue wire Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133372 Share on other sites More sharing options...
lucerne tractor Posted August 17, 2012 Author Share Posted August 17, 2012 I'm gunna cut the blue wire!!! Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133752 Share on other sites More sharing options...
lucerne tractor Posted August 17, 2012 Author Share Posted August 17, 2012 Not the green wire connection that would be your turbo wheel speed sensor the rectangle connector wire wire lock is the one your looking for.That could be it, cheap fix too. I'll check into it tomorrow. Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133754 Share on other sites More sharing options...
Lmackattack Posted August 17, 2012 Share Posted August 17, 2012 Wires on the turbo? Does not compute.....oh man these electronic diesels! Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133762 Share on other sites More sharing options...
staxx Posted August 17, 2012 Share Posted August 17, 2012 Also if you leave key on air psi at 120 engine off and wiggle the connection if it is making intermitatin connection you should here the vgt controler on the other side of engine apply and exhast air psi to turbo , if you are not sure what the vgt controler is follow the air line from turbo to the other side it is connected to other end. Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133784 Share on other sites More sharing options...
lucerne tractor Posted August 18, 2012 Author Share Posted August 18, 2012 Also if you leave key on air psi at 120 engine off and wiggle the connection if it is making intermitatin connection you should here the vgt controler on the other side of engine apply and exhast air psi to turbo , if you are not sure what the vgt controler is follow the air line from turbo to the other side it is connected to other end.10/4, will do, thanks Quote Link to comment https://www.bigmacktrucks.com/topic/26592-computer-code-picturequestion/#findComment-133948 Share on other sites More sharing options...
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