Fault Code P1238

Andihowe1975 · May 15th, 2018, 14:57

Hi All,

i have a Volvo C70 2.0T 2002 with the fault code P1238. I’ve checked all the turbo pipes after the turbo by spraying with soapy water to see if there was any bubbles etc and now looking at what’s next to check.

Was starting the look at the Turbo control valve but not sure of where to start.

Any ideas?

Andi

DSK · May 15th, 2018, 22:14

Can you also describe any running symptoms?

Whilst most of us routinely replace our TCV's every few years through good practice, to be honest they do last quite well in my experience and are not too pricey from our Volvo dealers in our traders section of the website. I would want to try a replacement TCV. Also trace the 3 hoses connected to it and trace them checking for signs of wear or having come off.

That code could potentially be thrown by a faulty/failed MAF sensor also. Could try disconnecting it or a known working spare.

May 15th, 2018, 14:57	#1
Andihowe1975 New Member Last Online: May 15th, 2018 16:41 Join Date: May 2018 Location: Glasgow	Fault Code P1238 Hi All, i have a Volvo C70 2.0T 2002 with the fault code P1238. I’ve checked all the turbo pipes after the turbo by spraying with soapy water to see if there was any bubbles etc and now looking at what’s next to check. Was starting the look at the Turbo control valve but not sure of where to start. Any ideas? Andi

May 15th, 2018, 22:14	#2
DSK C70 T5 Last Online: Mar 23rd, 2022 21:00 Join Date: Sep 2006 Location: Midlands	Can you also describe any running symptoms? Whilst most of us routinely replace our TCV's every few years through good practice, to be honest they do last quite well in my experience and are not too pricey from our Volvo dealers in our traders section of the website. I would want to try a replacement TCV. Also trace the 3 hoses connected to it and trace them checking for signs of wear or having come off. That code could potentially be thrown by a faulty/failed MAF sensor also. Could try disconnecting it or a known working spare. __________________ 2000 C70 T5 GT Coupe 1998 S70R / 1995 Toyota Supra Twin Turbo 2007 Mercedes CLS 320 CDI / 2011 Mercedes S350 Bluetec 2007 Suzuki GSXR-1000 Last edited by DSK; May 15th, 2018 at 22:18.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)