Cyinder one fault

Tiny
JULIE SAYER
  • MEMBER
  • 2004 PEUGEOT 206
  • 1.6L
  • 4 CYL
  • 70,000 MILES
I have had three new coil packs, plugs and I still have the same problem emissions fault cylinder one. Every time engine light stays on and not running very well.
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Wednesday, February 15th, 2017 AT 9:35 AM

9 Replies

Tiny
STEVE W.
  • EXPERT
Run a compression test and a leak down test to make sure the problem is not a mechanical fault. If that tests okay, it is probably an injector. Swap #1 with #3 and see if the problem moves. If it does replace the injector.
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Wednesday, February 15th, 2017 AT 10:28 AM
Tiny
JULIE SAYER
  • MEMBER
It has had a fuel injector also.
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Wednesday, February 15th, 2017 AT 10:35 AM
Tiny
STEVE W.
  • EXPERT
Then run the compression and leak down tests and a fuel pressure test as well. What code(s) show up when scanned?
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Wednesday, February 15th, 2017 AT 10:53 AM
Tiny
JULIE SAYER
  • MEMBER
Thank you for your advice. I am finding it hard of find someone to help fix the problem as they say they can only do what I have had done coil packs, and plugs this has been happening for five months every time it is cylinder one emission failure that comes up, first and second gear it judders, Third and fourth feels no power. Then today it was judder-y, but I could use fourth, but engine light on.
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Wednesday, February 15th, 2017 AT 11:01 AM
Tiny
STEVE W.
  • EXPERT
Okay, been looking at the fuel system and your symptoms. Get the fuel pressure checked and also run a volume test. I am suspicious that you have a clogged fuel filter or the pump is failing. Another remote possibility is that you have water or other contamination. That would have to go through the injection system and would cause many of the problems you are seeing.

If possible could you post the actual numbers for the codes. They might point to a fault or better idea of the problem.

Do you notice if this happens only when the fuel gets below a certain level? Only after it is parked for a while? Or is it all the time?
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Wednesday, February 15th, 2017 AT 3:39 PM
Tiny
JULIE SAYER
  • MEMBER
P1337 ignition failure cylinder one.
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Thursday, February 16th, 2017 AT 3:12 AM
Tiny
STEVE W.
  • EXPERT
I just had a strange thought. When you replaced the coil packs/plugs, which end of the engine are you calling cylinder #1? I talked to a couple people in the UK who said that some of the Peugeots are "backwards" with cylinder #1 at the gearbox end (right side facing the engine) instead of the more common layout.
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Thursday, February 16th, 2017 AT 3:50 PM
Tiny
JULIE SAYER
  • MEMBER
As far as I am aware they replaced all four. I thought the color pack came as one unit of four.
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Thursday, February 16th, 2017 AT 4:11 PM
Tiny
STEVE W.
  • EXPERT
Okay, that negates that idea. In looking around this seems to be a very common issue that even the company has a problem with.
I would say to get the fuel pressure tested, and have a compression and leak down test done.

The only other item might be a short in the wiring harness to the injector or coil. Peugeot left the US market long ago so it is hard to find good information here.
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Thursday, February 16th, 2017 AT 10:30 PM

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