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Engine misfire

Tiny
PAUL937
  • MEMBER
  • 2005 PEUGEOT 307
  • 57,000 MILES
Diagnostics code p1337. Engine misfires at idle and on occasion engine light starts to flash and pollution warning comes up on the screen and shuts down that cylinder so only fires on three, if I turn ignition off and start up again it runs again but still with very slight misfire. I have had coil pack replaced twice, once with a genuine Peugeot one.

Injector replaced spark plugs replaced and a new ecu at a cost of 600 quid. Been to Peugeot dealers and even they cant find a fault. Please help
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Monday, May 6th, 2013 AT 8:19 PM

15 Replies

Tiny
RANDICO
  • MECHANIC
  • 174 POSTS
You have a mechanical problem, compression needs to be done, and a leak down test needs to be done, And if the dealer ask for a tear down, you need to agree, The cylinder heads blows easy.
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Monday, May 6th, 2013 AT 9:53 PM
Tiny
PAUL937
  • MEMBER
  • 2 POSTS
My mechanic has told me its not misfiring despite the p1337 fault code, he said its just running lumpy at idle and is now going to replace both o2 sensors despite no codes being thrown for the sensors.

I have asked for compression and leak down test but he said there is no need to as the car runs fine at normal driving. I am totally out of ideas now unless this code has another meaning only Peugeot know about.
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Tuesday, May 21st, 2013 AT 11:37 PM
Tiny
PETE4
  • MEMBER
  • 1 POST
Hi Paul,
hope you get this message.
Did you ever solve your car issues?
We have exactly the same issues that you describe and at our wits
end. Peugeot also have been unable to identify the problem even though
we have so far spent over  600.

Regards
Pete
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Friday, June 12th, 2015 AT 12:20 PM
Tiny
JULIE SAYER
  • MEMBER
  • 6 POSTS
I also have this problem?
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Thursday, February 16th, 2017 AT 9:21 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,878 POSTS
I have seen a bad injector cause this issue here is a guide to help test.

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Please run down this guide and report back.

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Sunday, February 19th, 2017 AT 2:54 PM
Tiny
RAZVAN GHETU
  • MEMBER
  • 3 POSTS
Hello guys,

I have t he exact same issue.

Changed Sparks, Injectors, Coil and checked everything else (fuel pump etc.)

Thing is that 2 of the injectors just stop working even though they still receive 12v.

LPG WORKS FINE.
Yes, I have lpg and it works just fine, so its not about the compresion or anything that is common with the gas.

How did u fix it?
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Wednesday, August 2nd, 2017 AT 9:00 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,878 POSTS
Hello,

This problem can be resolved by installing a new crankshaft angle sensor which is what the codes states. Here is a guide to show you what you are in for when doing the job.

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Please let us know what happens.

Cheers, Ken

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Wednesday, August 2nd, 2017 AT 11:06 AM
Tiny
RAZVAN GHETU
  • MEMBER
  • 3 POSTS
Nope, tried it, no go.

Also why would it work on the LPG system. It makes no sense
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Thursday, August 3rd, 2017 AT 2:18 PM
Tiny
CSABA BURAI
  • MEMBER
  • 2 POSTS
Hi,

Did you manage to solve the problem? Any update?
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Monday, January 8th, 2018 AT 12:34 AM
Tiny
RAZVAN GHETU
  • MEMBER
  • 3 POSTS
Yes, it was a bad cambelt. It wasn't fitted right, one tooth was off. Horror story. Glad I fixed it.
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Monday, January 8th, 2018 AT 12:36 AM
Tiny
CSABA BURAI
  • MEMBER
  • 2 POSTS
I'm happy to hear that. Thanks for the answer.
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Monday, January 8th, 2018 AT 12:39 AM
Tiny
KLEVIS
  • MEMBER
  • 2 POSTS
Thing is that 2 of the injectors just stop working even though they still receive 12v.

If there is someone already here.
How is possible that 2 fuel injectors stops working after some misfires when on lpg?
Thanks
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Monday, December 16th, 2019 AT 6:04 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,878 POSTS
Hello,

It sounds like the injectors have gone bad. To be sure here are two guides to help us confirm the issue:

https://www.2carpros.com/articles/how-to-replace-a-fuel-injector

and

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Please run down these guides and report back.

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Monday, December 16th, 2019 AT 1:00 PM
Tiny
KLEVIS
  • MEMBER
  • 2 POSTS
Yes I understand what you mean.
But no, it's not lpg and fuel injectors problem. Because it's running good in petrol, also good in high rpm when in lpg.
The problems starts in low/idle rpm, in the first misfire the petrol injectors are going off and there is engine light and fan running full speed.
It's looks more like incompatibility between petrol ecu and lpg ECU.
Someone had any similar experience?
Thanks
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Monday, December 16th, 2019 AT 3:33 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,878 POSTS
Not that I know of can you remove the spark plugs for inspection? here is a guide:

https://www.2carpros.com/articles/how-to-change-spark-plugs

Please run down this guide and report back.
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Tuesday, December 17th, 2019 AT 11:34 AM

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