Saxo diesel hesitates

1. splash1 Newbie Joined: Oct 2013 Posts: 24

   #1 5th May 2014, 12:57

   As per title, my Saxo diesel sometimes hesitates briefly for about a second under 2,000rpm and then picks up fine. Its only happens every 3 or 4 trips and I can't seem able to make it do it. I've tried Diesel Magic thinking possible injector but could it be MAP/MAF sensor? Not sure which one has it got. Where do I find it to give it a clean? Or any other ideas? Many thanks.
2. Manu Saxperience Addict Joined: Dec 2009 Posts: 11714 A6 Le Mans tuned/A3 TFSI tuned

   #2 5th May 2014, 13:31

   cold/warm engine, service done? etc
3. splash1 Newbie Joined: Oct 2013 Posts: 24

   #3 5th May 2014, 13:51

   Serviced well, usually cold engine but car starts OK
4. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #4 5th May 2014, 19:40

   When was the fuel filter last changed?
5. splash1 Newbie Joined: Oct 2013 Posts: 24

   #5 5th May 2014, 19:45

   Not sure, will check. Could it be fuel filter?
6. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #6 5th May 2014, 20:30

   Quote:

   Originally Posted by splash1 Not sure, will check. Could it be fuel filter?

   If the filter is blocked then yes.
7. pdiddley L-plater Joined: May 2014 Posts: 55

   #7 5th May 2014, 21:34

   has it got an EGR valve most prob that mate
8. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #8 5th May 2014, 21:50

   Quote:

   Originally Posted by pdiddley has it got an EGR valve most prob that mate

   I stand to be corrected but i don't think diesel saxo's have them.
9. pdiddley L-plater Joined: May 2014 Posts: 55

   #9 5th May 2014, 21:53

   not 100% if they do but a really good call tho
10. splash1 Newbie Joined: Oct 2013 Posts: 24

    #10 7th May 2014, 07:58

    People are selling EGR valves for Saxo diesels on ebay so I presume they have them. Are they easily located? Are they cleanable or must it be replaced? Cheers
11. splash1 Newbie Joined: Oct 2013 Posts: 24

    #11 10th May 2014, 16:12

    Anyone? Car is taking a couple more turns to start now, and it's happening within first 2/3 miles from cold every time.
12. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

    #12 10th May 2014, 19:01

    air leak.
13. splash1 Newbie Joined: Oct 2013 Posts: 24

    #13 11th May 2014, 15:16

    Many thanks welshpug. I have fuel pipe leak, letting air in and fuel out on the pipe from the manual priming pump to what looks like the top of the fuel filter. Can I simply replace this hose with a new bit, pump the manual priming pump a bit and then car will start? Anything else I need to do? Cheers.