Engine misfire

Tiny
PAUL937
  • 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

8 Replies

Tiny
RANDICO
  • MEMBER

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

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

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

I also have this problem?

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Thursday, February 16th, 2017 AT 9:21 AM
Tiny
2CARPROS KEN
  • ADMIN
  • 10,289 POSTS

Hello everyone!

There should be two reasons this problem could happen the first and most common is the mass air flow sensor is dirty and needs to be cleaned.

Here is a guide

https://www.2carpros.com/articles/mass-air-flow-service

the next is a vacuum leak

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please run these tests to let us know what you find

Best, Ken

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-1
Sunday, February 19th, 2017 AT 2:54 PM
Tiny
RAZVAN GHETU
  • MEMBER

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
2CARPROS KEN
  • ADMIN
  • 10,289 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

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

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