Post #1
I have this issue,In high revs my Xsara VTS is running less power random.
Rollertest curve is like a the mountans…
What can be the problem.
Reading code P 0556
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displaying posts 1 to 2 of 2
| Author | Subject: Lost off power in high revs |
 RichardB
Newbie  Location: Malden Registered: 22 Jun 2023 Posts: 1 Status: Offline |
In high revs my Xsara VTS is running less power random. Rollertest curve is like a the mountans… What can be the problem. Reading code P 0556 |
 Posted 22nd Jun 2023 at 19:09
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jimmyhackers
Seasoned Pro  Location: birmingham Registered: 14 Jun 2011 Posts: 1,144 Status: Offline |
Post #2
internet says code is related to brake booster servo....so.....there could be a vacum leak somewhere, messing with your brake booster and also map sensor readings and inturn your ecu. redneck solution to find a vac leak is spray brake cleaner (flamible stuff) around your engine bay with the engine on and see if revs increase when you spray it in one area. ________________________________________ the world is changed by people in sheds |
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Posted 22nd Nov 2023 at 16:36
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