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[eliteomegaman]

Morning all 
Have posted a few times about my facelift 2.5 elite with a misfire.
Just to re-cap -:
NOTHING showing on paper clip test or Tech 2
Coil pack replaced
Cam shaft sensor replaced (mechanic said fault code shown on tech 2 BUT didn't realise that the engine had to be running for it to clear!)
New spark plugs replaced
New HT Leads replaced (correctly fitted onto coil pack & no leads loose)
New fuel filter fitted
Compression test done y/day but nothing found!
Have now been advised that it could well be that the Exhaust Manifold Gasket could be the problem OR injectors (although 2 lots of cleaner where put in a couple of months ago when the problem first happened).
The exhaust does sound as if its blowing & i just wanted to ask anyone out there if they think that this could well be the cause of the bad misfire & if so is it an expensive job to do (i know the gaskets are only a few quid on ebay) labour wise?
I'm at the end of my tether with this & it's cost me a small fortune up to know which has completely made me skint!!
PLEASE HELP!!!!

[Elite Pete]

Morning all 
Have posted a few times about my facelift 2.5 elite with a misfire.
Just to re-cap -:
NOTHING showing on paper clip test or Tech 2
Coil pack replaced
Cam shaft sensor replaced (mechanic said fault code shown on tech 2 BUT didn't realise that the engine had to be running for it to clear!)
New spark plugs replaced
New HT Leads replaced (correctly fitted onto coil pack & no leads loose)
New fuel filter fitted
Compression test done y/day but nothing found!
Have now been advised that it could well be that the Exhaust Manifold Gasket could be the problem OR injectors (although 2 lots of cleaner where put in a couple of months ago when the problem first happened).
The exhaust does sound as if its blowing & i just wanted to ask anyone out there if they think that this could well be the cause of the bad misfire & if so is it an expensive job to do (i know the gaskets are only a few quid on ebay) labour wise?
I'm at the end of my tether with this & it's cost me a small fortune up to know which has completely made me skint!!
PLEASE HELP!!!!

Don't get the cheap Ebay ones, only use the multi layer genuine Vauxhall ones from a dealer

[eliteomegaman]

Cheers for the message Pete & the quote
All i can say is J-E-S-U-S didn't realise it was so expensive  !!!!
Could the misfire be caused by the Exhaust Manifold Gasket leaking???

[V6Astra F]

Also had quite a random missfire when starting the car when it was still hot , turned out to be the MAF sensor as soon as I unplugged it the car ran fine

[Marks DTM Calib]

Cheers for the message Pete & the quote
All i can say is J-E-S-U-S didn't realise it was so expensive  !!!!
Could the misfire be caused by the Exhaust Manifold Gasket leaking???

I would say no and given what your mechanics has changed....its time for a new mechanic!

[eliteomegaman]

Cheers for the message Pete & the quote
All i can say is J-E-S-U-S didn't realise it was so expensive  !!!!
Could the misfire be caused by the Exhaust Manifold Gasket leaking???

I would say no and given what your mechanics has changed....its time for a new mechanic!

[/highlight]
Trouble is i have a car that's misfiring & 3 different people don't know what the problem is & can only guess what it might be - plugs? renewed, ht leads? renewed, compression test? done, fuel filter? done, loose lead on coil pack? nope, paper clip test? done with nothing showing & the list goes on!!!
If it is the Exhaust Manifold Gasket then at an estimated £170 i'm f**ked cos not got a pot to p**s in!!!!
Maybe some-one on this site has had the same problem & could give me advise as i'm not mechanically minded 

[eliteomegaman]

Also had quite a random missfire when starting the car when it was still hot , turned out to be the MAF sensor as soon as I unplugged it the car ran fine

My misfire is there all the time as soon as i accelerate 

[Marks DTM Calib]

You say the cam sensor was replaced (strange), do you mean the crank sensor?

[V6Astra F]

Also had quite a random missfire when starting the car when it was still hot , turned out to be the MAF sensor as soon as I unplugged it the car ran fine

My misfire is there all the time as soon as i accelerate 

Mine had the missfire/stuttering from 1800-2700 rpm also with no eml light or codes stored . Just unplug it and go for a test drive .

[eliteomegaman]

You say the cam sensor was replaced (strange), do you mean the crank sensor?

Sorry ur dead right i mean the crank sensor code 31 

[tunnie]

You say the cam sensor was replaced (strange), do you mean the crank sensor?

Sorry you are dead right i mean the crank sensor code 31 

Code 31 is normal when the engine is not running, code 19 indicates crank sensor failure.

Hope you did not replace it based on 31 code!

[eliteomegaman]

Also had quite a random missfire when starting the car when it was still hot , turned out to be the MAF sensor as soon as I unplugged it the car ran fine

My misfire is there all the time as soon as i accelerate 

Mine had the missfire/stuttering from 1800-2700 rpm also with no eml light or codes stored . Just unplug it and go for a test drive .

[/highlight]
How do i do that?

[eliteomegaman]

You say the cam sensor was replaced (strange), do you mean the crank sensor?

Sorry you are dead right i mean the crank sensor code 31 

Code 31 is normal when the engine is not running, code 19 indicates crank sensor failure.

Hope you did not replace it based on 31 code!

[/highlight]
YES!!!! My mechanic replaced it  :-? not knowing that on the tech 2 test code 31 shows untill the engine is fired up - when i told him he didn't charge me for his embarrasment 

[tunnie]

Also had quite a random missfire when starting the car when it was still hot , turned out to be the MAF sensor as soon as I unplugged it the car ran fine

My misfire is there all the time as soon as i accelerate 

Mine had the missfire/stuttering from 1800-2700 rpm also with no eml light or codes stored . Just unplug it and go for a test drive .

[/highlight]
How do i do that?

Unplug MAF sensor

[tunnie]

You say the cam sensor was replaced (strange), do you mean the crank sensor?

Sorry you are dead right i mean the crank sensor code 31 

Code 31 is normal when the engine is not running, code 19 indicates crank sensor failure.

Hope you did not replace it based on 31 code!

[/highlight]
YES!!!! My mechanic replaced it  :-? not knowing that on the tech 2 test code 31 shows untill the engine is fired up - when i told him he didn't charge me for his embarrasment 

I would change your mechanic