sooperdooper
Member
Hey all, got a question for you all about the turbo acuator that I have been having problems with. Symptoms while driving are surging while at cruising speed, and on takeoff (if I push it) the car will throw a cloud of smoke and stumble over itself.
The relevant codes are p2654 (turbocharger boost control position sensor circuit: signal too low) and p0234 (boost pressure regulation, overboost condition). I'm assuming that code 2 is caused by the first code. When looking at MVB 43.2 KOEO, I see 100%, rather than what I believe it should be (0%). If I jump pins 2 and 3, MVB 43.2 goes to 0%. If I understand the system correctly, that percentage should change as I move the actuator in and out (by hand, I have the actuator removed), but my actuator does not report any changes in the MVB. When I hook up the actuator for an ohm test, I have an open circuit between pins 1-2 and 2-3, and 112 (at the 200k setting)between 1-3 (and I believe that isnt what im looking for). There are also no changes to that reading when the actuator is moved. That indicates a trash G500 right? If someone could test theirs and post back or confirm that I have readings that are out of whack, I would appreciate it.
Is it common for the electronics in the sensor itself to go bad? From most of my reading, it seems as though the problem is usually related to leaking rubber seals, or for the body to be rusted through.
One other thing, I have double checked wiring (visually and resistance tested), as well as voltage (5V between pin 1&3), and all hoses (everything holds pressure for 4-5 minutes). The internal vanes move just fine.
The relevant codes are p2654 (turbocharger boost control position sensor circuit: signal too low) and p0234 (boost pressure regulation, overboost condition). I'm assuming that code 2 is caused by the first code. When looking at MVB 43.2 KOEO, I see 100%, rather than what I believe it should be (0%). If I jump pins 2 and 3, MVB 43.2 goes to 0%. If I understand the system correctly, that percentage should change as I move the actuator in and out (by hand, I have the actuator removed), but my actuator does not report any changes in the MVB. When I hook up the actuator for an ohm test, I have an open circuit between pins 1-2 and 2-3, and 112 (at the 200k setting)between 1-3 (and I believe that isnt what im looking for). There are also no changes to that reading when the actuator is moved. That indicates a trash G500 right? If someone could test theirs and post back or confirm that I have readings that are out of whack, I would appreciate it.
Is it common for the electronics in the sensor itself to go bad? From most of my reading, it seems as though the problem is usually related to leaking rubber seals, or for the body to be rusted through.
One other thing, I have double checked wiring (visually and resistance tested), as well as voltage (5V between pin 1&3), and all hoses (everything holds pressure for 4-5 minutes). The internal vanes move just fine.
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