Vauxhall (Opel) Zafira B 2011 Surge control valve replacement A17DTJ 1.7cdti Bosch 

I change the EGR unit. the fuel pump filter. mass airflow unit .had the engine tank cleaned out..this was the recommendation by three different garages. Who put on three different diagnostic machines.I took your advice and bought the suction valve worked straight away after spending £900 on stuff I did not need. Thanks a lot I wish I looked at your video £900 ago. Thanks again.

Hi Andy. Thanks for the video. I had exactly this problem on my 2012 Astra J 1.7 CDTi. Bought a replacement SCV off eBay and fitted it yesterday. Bit of a faff getting access to it, but replacing it has done the job and no need to re-calibrate the ECU or anything like that. The surging has gone and the car pulls much stronger from cold when moving off - previously it felt down on power when pulling away from cold, but I'd put this down to general deterioration of the engine, but not so. Now drives like a new car! Cheers. Graham

I put the valve in today big difference straight away thanks Andy

Hi mate great vid. Ive been looking for this solution for ages on my 1.3 cdti eco flex they told me it was normal

Thanks. After this video I fixing my car . Now is brilliant:)

I had this surging problem with my zafira until a couple of months ago.. purchased the scv from gsf parts.. now runs as it should and saves some fuel to...

I've been wondering what was Causig this. Have looked everywhere on forums as to what could be the cause. Only you mentioned the SCV. That engine idle and rev counter is identical to what I'm currently experiencing. So I have no doubt it's that. I've ordered a new SCV and will be fitting it Tuesday. Hopefully this will be solved. Thanks Again 👍

This video helped me to solve the same problem I had yesterday, thank you.👍👍👍

Did mine today, here's some tips from me. Prop bonnet up on the right with a broom shag so the bonnet stay isn't in the way, (better access). Do not take plastic cover of the rocker cover, the fuel return pipes T peices are easily broken and cost £70 to replace as it comes as one unit (ouch). Mine came with a gasket, rubber seals, as its arkward to hold the scv in place I places a strip of masking tape across the tin seal, once into position and the new bolts in place it can be easily removed. When i started it back up it did the same lumpy idle, I turned it off and restarted, idle was back to normal. Hope this helps

I have done this - has sorted the idle however I now have the car spanner light illuminated? Any thoughts on this ? I have tried resetting a few times and it’s still there

Great video, would you by any chance know where the scv is located on a zafira tourer elite 2012 ?

Did you get sorted… what was the issue…

Please how do I check for the part number? I want to order for the part but I dont know where you find the part number. The number on the plastic part isn't the one.

Thank you brilliant video 👍

Very informative, thanks. I have very similar issues with Astra J 2.0 cdti, although not quite as erratic yet. SCV again, do you think?

bravo Thank you so much Andy

Cheers Andy, was there in codes generated in ECM for fault cheers sandy

Good job. I have a same problem.

I have the same problem with my opel astra j 1.7 cdti 110, i want to know if after you change that SCv Valve you did some programing with the tester or is plug and play?

I thing I have the same problem on my Zafira. But, it is not constant, it happens only sometimes! Is there a way to clean that part and not replace it? Is this an expensive part? Thank you

Did you also do the suction control valve relearn procedure as you never mentioned it in your video?

Hi, great video, I managed to get the bolts out, however I can’t seem to pull the valve out. Does it need turning before pops out? Thanks

Please send me the link for the part I would appreciate it thanks

Will something happen if i keep driving with this idle surging? Will cause problems to engine or any other parts

hi did you able to try using the long scv rather than the oem short scv.

hello I have a problem with the radiator fan which starts very early after 5 to 10 minutes of starting the fan engages for an Opel Zafira B 1.7 CDTI

Please help, would this help my car. Just brought it, got 4 kids at home and it's broken down, seller blocked me. Dont feel safe to drive it. Got code 22795b. Was in semi limp no faster than 40, Inlet manifold bar had come off, got that sorted. Changed air filter, cleaned egr and maf but engine light on and still struggles to get power intermittently. It's making the same squealing noise I can hear at the start of your video, was told that's the alternator but could it be this? Weirdly both times its goes into limp mode is after I've fueled up. It's a zafira 09 1.9 cdti. Run out of money now so hoping it's a quick fix, I'm so lucky my dad is trying everything he can !

I had same problem mine was the camshaft sensor not the scv. It was identical problem as you shown here so just a heads up as it can also be other issues, the camshaft sensor is £37

Can this eventual cause the car to stall in ideal after about 15 seconds

Andy, is a SCV the same as a purge valve, that helps your engine to breath. I have been told to check my purge valve.. is this the same thing in a more modern engine than the plastic ones i have been seeing???

Hi Andy I have the same issue on my 2011 zafira 1.7 cdti ecoflex elite. Would you have a link for this item. Also would it have an issue where the fuel range dissappears every now and again and goes through more fuel?

Did you have blue smoke during the idle?

Anybody know if this would cause cutting out on girst start and trouble starting? Seems okay...ish omce started but still surges....mrs failed to tell me it was an issue until it was a bigger one 😂

Is this engine part the same as the fuel pressure regulator? I've seen this problem being fixed by cha ging that ? Is this the same problem ?

Thank you so much, Andy. I have a Zafira B 1.9 CDTI and engine turns of by itself. I cleaned throttle body last week, but it just only worked 6 days, today engine stopped suddenly again on my way to work. Do you think I also need to change the surge control valve to fix the problem? We have changed the diesel filter and cleaned throttle body. But it worked temporarily. Could you share your experience, please?

Hi sorry to bother you, this is a side question but do you know what the squeaking is when idle. Goes away when it starts to warm up. I notice yours does it at the beginning but couldn't hear it at the end. Thanks.

I have changed the scv naw the car keeps cutting out when stationary at traffic lights

Can you help with removing the wiper tray?

Hello, does your car smokes black?

Thanks for the video. Where does the big O ring sit?

Where did u get the part from good video

I have same problem with my zafira 1.7 cdti ecoflex 2011. Can I ask you what I need buy just fuel pump pressure? Thank you

hi do u know what would be the issue for an error code of p0171

Hi have same issue whre the idle is hunting. Bought a £30 scv valve and the car wouldn’t start but when unplugged it it started… anyway I put the original part back in and it’s hunting on idle again however when I unplug it then it idles nicely… . Any ideas as to shall I leave the plug in or out or shall I just get a genuine part that costs over £200. Thanks

Mine seems to go bad every 40 000 miles or so. Is that normal or too often? I've changed it twice now.

With this problem did u find turbo was not kicking I

Does the 1.8vvt engine have one of these? Mine does this randomly 🤔

Do you know the part number or link where you purchased it?

Hi Andy,really good helpfull video,I have this same problem,is any chance you can drop a link where I can buy genuine control valve,I find so many on ebay but I heard is very high chance it is fake not genuine Denso,your link where you bought it is not working anymore,and at the deler they sad it will cost me to buy 270£ if you know where I can buy cheaper denso genuine fuel suction control valve please drop a link,thank you

Abs light stays on. Speedo doesn't work either on my Vauxhall zafira any suggestionson what could be the fault

Would you be able to notice surging as your driving, mines doing this🤦‍♂️

Hello, your car was smoking white?. Plz reply.

Is this called a boost control valve also

Hi bro my chubby nabira Auto transmission not shift

You might just have fixed my motor

Do you have to program the SCU to axcept the new SCV

Where can i find it?

need to sort out smoking on a zafira , breather system i think , will check out your reasons, Thanks Andy Brown . thats not to you thats thanks from me also Andy Brown. .

Excellent, thank you. Should cure one problem but my big ussue is same engine fails pollution test but there are no faults on the diagnostics. Very confused and so is my mechanic. Cheers.

this is z17dtr engine ?

Think this is what is wrong with my car can someone tell me if they having same problem as me my car is running badly on idle tickover like missing a beat sometimes. And sometimes loosing power when accelerating. Is this the part I need in video or something else?

Aggiornamento,... investimento di 100 euro per valvola SCV nuova originale DENSO andato a buon fine . Tutti i problemi della macchina risolti , se penso a tutti i soldi buttati nella varie officine senza aver mai risolto il problema...

Tried this and it didnt work.

Start by checking all basics, air filter, oil lvl and scan the car. If no codes it is likely the SCV suction control Valve on your high Pressure fuel pump.. m.ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MHILFseKj5Q.html

Uupp

Get rid.?...the cars are toy cars they just won't last everything on it is cheap.MONEY PITTS.