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Ok, on my way in to work I loose all boost whatsoever. No CEL, nothing, my S60R just got transformed into a N/A motor. I mean a slug would probably move faster than what I felt. <p>I get to the office garage and I can't hear my turbo?! WTF? No leaks of any kind. I place my PPC Diagnostic tool and this code comes up ECM601C: Turbocharger control system, boost pressure fault, signal to high.<p>Now the weird part, I return back to the garage after my shift (10hrs), start the car, tubo is back, I make it home, full acceleration and all, re-check, no codes <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0"><p>Any ideas what can be the cause or what needs to be done?
 

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Re: Help!! ECM 601C (AlexD2)

I would start with this<p><br><A HREF="http://www.ipdusa.com/Volvo-S60/Performance/Heavy-Duty-Turbo-Control-Valve/p-74-403-4235/" TARGET="_blank">http://www.ipdusa.com/Volvo-S6...4235/</A>
 

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Re: Help!! ECM 601C (jstro)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>jstro</b> »</i></TD></TR><TR><TD CLASS="quote">I would start with this<p><br><A HREF="http://www.ipdusa.com/Volvo-S60/Performance/Heavy-Duty-Turbo-Control-Valve/p-74-403-4235/" TARGET="_blank">http://www.ipdusa.com/Volvo-S6...4235/</A></TD></TR></TABLE><p>No, likely not the problem. Failing TCV's don't generally set DTC's.
 

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Re: Help!! ECM 601C (AlexD2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>AlexD2</b> »</i></TD></TR><TR><TD CLASS="quote">Ok, on my way in to work I loose all boost whatsoever. No CEL, nothing, my S60R just got transformed into a N/A motor. I mean a slug would probably move faster than what I felt. <p>I get to the office garage and I can't hear my turbo?! WTF? No leaks of any kind. I place my PPC Diagnostic tool and this code comes up ECM601C: Turbocharger control system, boost pressure fault, signal to high.<p>Now the weird part, I return back to the garage after my shift (10hrs), start the car, tubo is back, I make it home, full acceleration and all, re-check, no codes <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0"><p>Any ideas what can be the cause or what needs to be done?</TD></TR></TABLE><p>I see you have an '06. There is a known software issue with these cars that can cause the car to lose all boost. Did you happen to notice if the temp gauge was at zero and the cooling fan was on high? If so, this could be your issue:<p>TNN28-67-2006-04-21 Title: Engine Controls - MIL ON and or DTC 275C and or Low Turbo Boost\<br>DTC 275C "Engine Coolant Temperature Sensor Signal Too High" may be wrongly triggered in any of the above vehicles, under the following driving conditions:<p>1. Vehicle driven short distance after cold start.<br>2. Engine turned off for short time, and then re-started while still warm.<p>DTC 275C will result in the following:<br>1. Check engine lamp illumination<br>2. Temperature gauge will read zero<br>3. Turbo boost will be limited.<p>I know this has a different DTC, but the problem has been kind of fluky. <p>If that's not the issue, than it's probably your boost pressure / IAT sensor.
 

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Re: Help!! ECM 601C (jstro)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>jstro</b> »</i></TD></TR><TR><TD CLASS="quote">I would start with this<p><br><A HREF="http://www.ipdusa.com/Volvo-S60/Performance/Heavy-Duty-Turbo-Control-Valve/p-74-403-4235/" TARGET="_blank">http://www.ipdusa.com/Volvo-S6...4235/</A></TD></TR></TABLE><p>Already installed 6 months ago
 

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Re: Help!! ECM 601C (AlexD2)

From VADIS for ECM-601C:<p><I>The engine control module (ECM) checks the function of the turbocharger (TC) control system.<br>The diagnostic trouble code (DTC) is stored if the pressure measured by the boost pressure sensor is higher than a calculated desired value. This is interpreted as a fault by the control module.<br>The diagnostic trouble code (DTC) can be diagnosed when the engine is running.<p><br>Substitute value <br>-Reduced throttle angle.<p><br>Possible source<p>-Damaged turbocharger (TC) control valve<br>-The hoses between the pressure servo for the boost pressure control (BPC) valve and the turbocharger (TC) control valve have come loose or are blocked or damaged<br>-The hoses between the turbocharger (TC) control valve and the charge air pipe (between the turbocharger (TC) and the charge air cooler (CAC)) are blocked or damaged<br>-Pressure servo for the boost pressure control (BPC) valve is incorrectly adjusted<br>-Damaged boost pressure control (BPC) valve pressure servo<br>-Sticking boost pressure control (BPC) valve.<p><br>Fault symptom <br>-Poor performance. </I>
 
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