Missfire

Started by Steveohim, May 11, 2016, 07:31

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Steveohim

May 11, 2016, 07:31 Last Edit: January 1, 1970, 01:00 by Guest
On the way to work this morning my car started misfiring with the engine management light flashing on and off, at the moment its intermittent, does anyone know what this could be?


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Steveohim

#1
May 11, 2016, 08:34 Last Edit: January 1, 1970, 01:00 by Guest
I've just had the precats taken out of it makes any difference?


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carolineasb

#2
May 11, 2016, 09:22 Last Edit: January 1, 1970, 01:00 by Guest
You'll need to get the code read with an OBDll reader and then go from there.  I may be wrong but I'm sure if EML is flashing you shouldn't keep driving  s:( :( s:(
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Carolyn

#3
May 11, 2016, 09:59 Last Edit: January 1, 1970, 01:00 by Guest
What, exactly, was done to remove the precats?

Did you take it to the guy who was going to do it from underneath with the manifold still on the car?  Were the O2 sensors removed before the bashing commenced?

Usually, when a problem crops up, it's related to what was done just before....
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Steveohim

#4
May 11, 2016, 10:23 Last Edit: January 1, 1970, 01:00 by Guest
The sensors weren't removed but it drove fine for about 50 miles after


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Wabbitkilla

#5
May 11, 2016, 10:27 Last Edit: January 1, 1970, 01:00 by Guest
Lots of things are possible.
As has been said, eml flashing is a serious fault ... stop and don't drive it till you've diagnosed and fixed it.
Many things could be wrong, especially if he did the precat removal on engine without removing the sensors.

The only place to start is getting a code reader on, then work from there.
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Carolyn

#6
May 11, 2016, 10:31 Last Edit: January 1, 1970, 01:00 by Guest
+1 On Wabbitkilla's advice. Bashing and sensors don't mix well.  You may have an intermittent fault.  As advised above, get a code reader (really a most basic tool with one of these cars) and see what it's showing.  The advice on here is generally very good, so it's worth taking heed...
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Steveohim

#7
May 11, 2016, 10:51 Last Edit: January 1, 1970, 01:00 by Guest
I'm taking it back to the garage on Monday but that means driving it 30 miles to get there, will use a bike until then


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Steveohim

#8
May 11, 2016, 10:53 Last Edit: January 1, 1970, 01:00 by Guest
Can anyone recommend a model of these code readers? I not long sold one but it was really basic


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Wabbitkilla

#9
May 11, 2016, 10:58 Last Edit: January 1, 1970, 01:00 by Guest
Quote from: "Steveohim"Can anyone recommend a model of these code readers? I not long sold one but it was really basic

It's not the cheapest, and not the most expensive but I've found this one to be great;
 m https://www.amazon.co.uk/Launch-Creader ... B004B0TDIK m
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1979scotte

#10
May 11, 2016, 11:09 Last Edit: January 1, 1970, 01:00 by Guest
If you have a smart phone you can buy a wireless reader for not much cash.
I use a blutooth reader with my galaxy s5 and the Torque Pro app.
Less than half the price of the above and fine to.just read codes.
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Steveohim

#11
May 11, 2016, 12:34 Last Edit: January 1, 1970, 01:00 by Guest
Is there a database for codes? To look up the code to find out what it means?


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wotugonado

#12
May 11, 2016, 12:37 Last Edit: January 1, 1970, 01:00 by Guest
Quote from: "Wabbitkilla"m https://www.amazon.co.uk/Launch-Creader ... B004B0TDIK m
This is the one I have,  very good with lots of options for specific tests and live feeds
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1979scotte

#13
May 11, 2016, 13:05 Last Edit: January 1, 1970, 01:00 by Guest
Quote from: "Steveohim"Is there a database for codes? To look up the code to find out what it means?


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If you google the code it will tell you but again if you have a smart phone app it does that for you.
First they came for the socialists, and I did not speak out—because I was not a socialist.
Then they came for the Jews, and I did not speak out—because I was not a Jew.
Then they came for me—and there was no one left to speak for me.

Free Ukraine 🇺🇦

Wabbitkilla

#14
May 11, 2016, 13:09 Last Edit: January 1, 1970, 01:00 by Guest
Quote from: "Steveohim"Is there a database for codes? To look up the code to find out what it means?

Indeed there is on this very forum  l viewtopic.php?f=46&t=12480 l
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Steveohim

#15
May 11, 2016, 13:30 Last Edit: January 1, 1970, 01:00 by Guest
Ok I've ordered that reader, next question is with is the obd2 port on the car?


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keljon

#16
May 11, 2016, 15:46 Last Edit: January 1, 1970, 01:00 by Guest
so they removed the precats without removing the sensors or the manifold?
lets hope they got all the precat material out
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Steveohim

#17
May 11, 2016, 15:49 Last Edit: January 1, 1970, 01:00 by Guest
Yes he let me look inside to make sure I was happy, all 3 amigos snapped off just doing that, so I dread to think what happened if I took the whole manifold off


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wotugonado

#18
May 11, 2016, 15:54 Last Edit: January 1, 1970, 01:00 by Guest
The port is under steering wheel above the accelerator pedal.
How did he flush it out if it was on the car ?
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Steveohim

#19
May 11, 2016, 16:41 Last Edit: January 1, 1970, 01:00 by Guest
Dropped the down pipe and it just fell out the bottom


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Steveohim

#20
May 13, 2016, 18:08 Last Edit: January 1, 1970, 01:00 by Guest
While I'm waiting for a code reader I thought I'd give an update, the misfire hasn't happened since but I did notice that it happened on a very wet morning and no problems since in the dry, I do remember me having a Peugeot 309 gti with the same problem years ago but never finding out what it was, has this happened to anyone else?


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Wabbitkilla

#21
May 13, 2016, 18:21 Last Edit: January 1, 1970, 01:00 by Guest
Sorry, just to make things clear ... dropped the downpipe and what happened?
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Steveohim

#22
May 13, 2016, 18:30 Last Edit: January 1, 1970, 01:00 by Guest
Removed the precats


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Wabbitkilla

#23
May 13, 2016, 23:55 Last Edit: January 1, 1970, 01:00 by Guest
What i meant was you said "It just fell out the bottom"....

Does that mean they were already falling apart and just fell out?
Cute & fluffy animals were definitely hurt during the production of this post, there're plenty more where they came from
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carolineasb

#24
May 14, 2016, 00:19 Last Edit: January 1, 1970, 01:00 by Guest
I thought the precats had to be "knocked" out if still intact in situ?
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