Epc warning light on

[steveyoshi]

Yes... I know that, apparently you cant clear codes, they are either active or historic.

Do you have any experience with an ELM BT OBDII Dongle and an Android App, would that show the miss fire codes ?

[steveyoshi]

Ok... now I can see this becoming a larger problem.

Flashing Red Temp Light was intermittent... but now pretty much on all the time yesterday... so I topped up the Expansion Tank with Distilled water, probably only used about 300ml.

It seems that when the engine is cold, it should be between the min and max. So I filled up to the Low level and will check again when it is warm. Haven't used the car since the top up last night. The temp gauge has not gone any higher than normal.

However I think this seems that I may have a head gasket or a cracked head issue, with coolant getting into the Combustion Chamber... causing the miss (first issue a couple of weeks and now getting worse)... so may not be a Coil or Plug issue.

Coolant shouldn't really go anywhere without a leak... and if there appears to be no leak... it must be being burnt somewhere.

68,000kms and I have already had 3 mods on oil burning, replaced a Mechatronics... now a head potentially... what a piece of **** lemon.

What does anyone think ?

[Umai Naa!!]

If it were a headgasket, you'd be seeing evidence of it in either the coolant or engine oil.

[steveyoshi]

That's what I thought too... so I checked... oil is not cloudy nor is there any oil bubbles in the coolant.

But I was thinking that coolant was only getting into the combustion chamber and being burnt... not sure!!

[Umai Naa!!]

If it were from the water jacket to the combustion chamber, the system would over-pressurise and the coolant would be pushed back out the overflow port on the expansion bottle.

[steveyoshi]

If it were from the water jacket to the combustion chamber, the system would over-pressurise and the coolant would be pushed back out the overflow port on the expansion bottle.

Well that sort of makes sense... thanks.

Combustion and psi would combine to be have more pressure than the water pump... and would cause an overflow.

Can smell coolant sometimes... sort of... but cant see anything leaking so perhaps it is a tiny leak and is drying on something hot before it ends up on the garage floor.

Only added a tiny amount (300ml) of distilled water to get to low level when cold last night and no lights to and from work.

Now I have done the same when I got home just then, to get to max level, using about 200ml of distilled water.

Will have to monitor and hope that is just a minor leak or some sort of evaporation due to the fact I have never topped it up since new (68ks).

AS for the miss it is still there... I think I am about to buy a set of coils and when I finally get to scan it... hope that one or two coils are the reason for the ECU light flashing every so often. At least the EPC light hasn't been seen again... just the ECU amber one.

Fingers crossed... and hopefully my OBDII B/T adaptor arrives soon and it works.