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[manolo]

Igntion coil is new and spark 2 year & about 30000 km

But you said you bought it from someone from the forum!?

yes that was second, and now I have third new one

[tunnie]

Igntion coil is new and spark 2 year & about 30000 km

But you said you bought it from someone from the forum!?

yes that was second, and now I have third new one

Ahh, the truth finally

As per Chris's post, new plugs + torque wrench 

[feeutfo]

Tunnie, he did say as much. See post 23

[tunnie]

Tunnie, he did say as much. See post 23

Oh missed that 

My apologies!

[manolo]

story continue
engine is cleaned with carbonclean MotorVac system with no better results 
then I tested my car with 4th ignition coil from 3.2V6 which works OK, but in my car causes same errors  now I am sure that my is OK
testing compression shows that 5th cylinder have only 2/3 compression of 1 or 3. After cleaning with some additive for ventiles there is no new errors  but still have no stable work in idle (maybe that valves are not 100% clean I don't see new results of compression tests )
later I can't start at all for some time, and after few hours can again. diagnostics show cranck sensor and now I am waiting for new one
what to do if compression in 5 th cylinder is still low and is this normal for car with 270000 km?
 

[Andy H]

today I receive and mount new ignition coil and get new error P0300 0301 0303 0305
then I put new fuel 100 octane and tube of Liquimolly injector cleaner. Now I dont receive new error but get stil unstable engine in idle (500 600 rpm)
is it possible that injector cause error 0300...

Injectors are bullet proof, lets go back to the start of this issue. You fitted a possible faulty coil pack? What made you change this in the first place?

until they go wrong....... Keep an open mind 

If there has been a sticky/weeping injector it may have caused a misfire and it may have caused bore wash & subsequent ring damage leading to loss of compression. Not saying it is likely or common though.......

[Andy H]

today I receive and mount new ignition coil and get new error P0300 0301 0303 0305 
then I put new fuel 100 octane and tube of Liquimolly injector cleaner. Now I dont receive new error but get stil unstable engine in idle (500 600 rpm)
is it possible that injector cause error 0300...

0300 is a 'general misfire' Do you still have the EML light on? The fault codes will be stored for a little while irrespective of you fixing the fault.

Is the multiplug firmly clipped on to the rear of the coil pack? Last time I changed my spark plugs I failed (forgot  ) to attach the plug and got 0300 0301 0303 & 0305. Tickover was so rough I thought I had broken something.

As Andy B says the codes will hang around for a while (if you are using the pedal trick) but the EML goes out as soon as there are no current faults.

[Webby the Bear]

following the discovery of low compression isn't the next step to do a leak down to find the source of the loss?

 

[manolo]

miracle
new cranck sensor & today all cylinders have compression 15
no misfire

only still no smooth work in idle???

[manolo]

shit 
resime:
today I pick up car from service
new ignition coil 1-3-5
cleaned valves and injectors
injectors swaped place 2-4-6 with 1-3-5
cranck sensor is old (I am waiting for new one)
compression 15 on all cylinders
today eml light & missfire 1-3-5  seams I have to resolve problem myself

[Webby the Bear]

shit 
resime:
today I pick up car from service
new ignition coil 1-3-5
cleaned valves and injectors
injectors swaped place 2-4-6 with 1-3-5
cranck sensor is old (I am waiting for new one)
compression 15 on all cylinders
today eml light & missfire 1-3-5  seams I have to resolve problem myself

Hi Manalo,

Unless I'm being stupid as it's been a long day (please feel free to tell me if I am) but the changing of a crank sensor/injectors will have no bearing on compression of a cylinder.

When you say ''compression 15 on all cylinders'', is this 15 bar of pressure in each cylinder? Unsure how you can go from one cylinder being at 2/3rds its brothers and sisters (as per your previous post) to all the same without correcting something compression related as opposed to ignition related.

How are you doing your compression testing?

[manolo]

Hi Webby,
I was there on first measuring when 5th cylinder have about 10 bar and 1&3 15 bar
after they cleaned valves (don't know how but they did not disassembled engine) and told me that compression now is same on all cylinders, 15 bar

[Webby the Bear]

Hi Webby,
I was there on first measuring when 5th cylinder have about 10 bar and 1&3 15 bar
after they cleaned valves (don't know how but they did not disassembled engine) and told me that compression now is same on all cylinders, 15 bar

That's fair enough then mate 

Two things I will say though bearing in mind you still have a problem....

1.) from a compression test how did they know it was valve related (or did they openly say ''we'll try this first''?)
2.) if you were at the garage when you saw cylinder 5 at 10 bar, I'd want to be there to see the new 15 bar.... just for piece of mind 

[manolo]

Hi Webby,
I was there on first measuring when 5th cylinder have about 10 bar and 1&3 15 bar
after they cleaned valves (don't know how but they did not disassembled engine) and told me that compression now is same on all cylinders, 15 bar

That's fair enough then mate 

Two things I will say though bearing in mind you still have a problem....

1.) from a compression test how did they know it was valve related (or did they openly say ''we'll try this first''?)
2.) if you were at the garage when you saw cylinder 5 at 10 bar, I'd want to be there to see the new 15 bar.... just for piece of mind 

1. Yes, they say they will try
2. me to, but they test without me

[Webby the Bear]

i'd personally ask to see another one... but maybe thats cos i'm cynical