backfire problem

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Retribution
Posts: 1117
Joined: Sun Sep 04, 2005 3:48 pm

backfire problem

Post by Retribution »

Ok just spoken to my insurance company and have been told that the engineer has gone and checked the car out and he says the car is backfiring and it's something to do with my ecu
Where do i need to look exactally for the ecu codes i know the ecu is in the left hand side of my boot

What happened is someone hit me from behind and slight damage to bumper, bumper was written off and new bumper authorised by insurance
But they are saying that engine isnt to do with crash

So i thought i'd ask here b4 i get car back if anyone has had a similar problem with a power loss to the car it takes around 5,000 revs to get car moving and when it does its slow as hell 2nd gear gets to about 22 - 25 mph at around 5,000 rpm
Car dosent backfire in such as a bang or anything so cant understand whats gone on
paulmann

Re: backfire problem

Post by paulmann »

if car is only getting 20-25 in second at 5000rpm thats a transmission problem :?:

slipping clutch? broken diff? the speed is directly related to gear and rpm unless something inbetween is broken.

To get ecu codes do a search on this forum. You have to bridge two connectors in the diag port which is in the engine bay. Then the engine warning light will flash a code.
Last edited by paulmann on Wed Apr 26, 2006 1:44 pm, edited 1 time in total.
Retribution
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Joined: Sun Sep 04, 2005 3:48 pm

Re: backfire problem

Post by Retribution »

There is no power in the car at all mate when driving it feels like i'm dragging a house behind me and not sure where to look for error codes i'm hoping the engineer wrote em down or i have to wait till car gets delivered back #-o
Retribution
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Joined: Sun Sep 04, 2005 3:48 pm

Re: backfire problem

Post by Retribution »

There is no power in the car at all mate when driving it feels like i'm dragging a house behind me and not sure where to look for error codes i'm hoping the engineer wrote em down or i have to wait till car gets delivered back #-o

Heres the original link after my smack and what it felt like to drive last month

http://www.imoc.co.uk/forums/viewtopic. ... highlight=
paulmann

Re: backfire problem

Post by paulmann »

maybe your rear diff is having trouble but definatly something in the transmission i would have thought.
Draven
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Re: backfire problem

Post by Draven »

Clutch slipping majorly. Sounds like a possible fault.. I'm assuming it revs in nutral ok ??? :shock:
paulmann

Re: backfire problem

Post by paulmann »

reading that post the brakes are a good place to go but did you smell any clutch?
Retribution
Posts: 1117
Joined: Sun Sep 04, 2005 3:48 pm

Re: backfire problem

Post by Retribution »

No nothing smelt funny or anything really just a total loss of power
When i started the car to revserse out of the drive was just as bad a lot of rev to get it movingthen to straighten it up ready for the wynch to drag it onto the transported

Clutch seemd fine and no problem changing the gears it revs fine in nutural and in normal gears
Brakes i did think of but when it was driven it braked fine as i upgraded them from the rev 1 to rev 3 including the goorich hoses

Just when i had big plans on my engine mods ](*,) ](*,) ](*,)
Spittinflames
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Joined: Sat Aug 06, 2005 7:07 pm
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Re: backfire problem

Post by Spittinflames »

No power this sounds exactly how my car was behaving a few weeks ago, it also backfired (what i called machine gun fire because it did it more than once and quite rapidly)

I changed dizzy, rotor arm and plugs..... belive it or not it felt like someone had finally released the brake's off the car..... you wouldn't belive the difference. Not saying it definatly is this but the symptons you describe where the same as mine. HTH

*edit*
Also is your engine managment light on (or comes on after driving) as knock sensors when gone make your car run really really crap..... it happened to mine.
Retribution
Posts: 1117
Joined: Sun Sep 04, 2005 3:48 pm

Re: backfire problem

Post by Retribution »

Spittinflames i have been thinking of the dizzy cap mate as thats 1 thing i have never changed plus the fact the previous owner kept this car standard bar 17" alloys now also take into account the cambelt sticker says it was last changed in 1999 at 65,000 km its now 120,000km so theres a good cahnce it hasnt been changed


What are these like mate Copper Contact Dizzy Caps II on imoc affils?


http://www.imoc.co.uk/forums/viewtopic.php?t=33929
Spittinflames
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Re: backfire problem

Post by Spittinflames »

Don't know about those copper contact ones m8 not tried one.

I bought mine from a local store paid about 40 quid for it plus 7 quid for the rotor arm... plugs were around 34 quid...

I give you my word that it completley changed my car..... it was fine one day then all of a sudden it ran like a piece of crap.... changed all above items and all was cured.

I've never noticed such a big difference from just changing these parts on any other car.

It's got to be worth a shot if there due anyway.
Retribution
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Joined: Sun Sep 04, 2005 3:48 pm

Re: backfire problem

Post by Retribution »

Cheers mate will give that a shot then and see least have the parts here for when car comes back date unknown :shock:
paulmann

Re: backfire problem

Post by paulmann »

I think you are looking in the wrong area with the dizzy and rotar arm with regard to the slow speed at high revs.

I would be looking at transmission & brakes.

Engine RPM and Gear dictate the cars speed if the clutch is gripping as it should.
Retribution
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Re: backfire problem

Post by Retribution »

paulmann cheers mate will look into this as well i finally got engineer company in nottingham to authorise a full diagnostics check hopefully within next 2 days, but no work to be carried out as he thinks its not to do with the rear bump but i think it may be so it's a 50/50 either way i should find what the problem is and then either they get it fixed or i do, just the not knowing thats a pain ](*,) ](*,) ](*,) ](*,)
Spittinflames
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Re: backfire problem

Post by Spittinflames »

paulmann wrote:I think you are looking in the wrong area with the dizzy and rotar arm with regard to the slow speed at high revs.

I would be looking at transmission & brakes.

Engine RPM and Gear dictate the cars speed if the clutch is gripping as it should.


Yeah the slow speed but high revs wouldnt be dizzy cap.... but the rest of what you said would point me towards the dizzy etc.

Let us all know when you find out fella :P
darkmagi
Posts: 79
Joined: Wed Dec 15, 2004 6:29 pm

Re: backfire problem

Post by darkmagi »

Dont know if its any good to you but try here for your error codes.

http://www.ayrpark.plus.com/errorcodes.html
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