Azusa

can anyone help i have recently had an OMEX 600 series management system wired to my mk3 rs turbo efi engine by a local company not mentioning any names yet but after running it up we was getting heaps of blue smoke through the exhaust and was told to change the turbo! which we went on to do and still we got loads of smoke.After speaking to them I was then told to change stem seals and also the guides which we did! and still we was getting smoke and the car stunk of fuel. Contacted them again they said the engine must be shot so we travelled to Liverpool to view a running engine in a fiesta turbo and then engine was Sweet no smoke or rattles at all ran engine there for 30 mins all ok!! then engine was removed while we waited and watched we then bought the engine home and fitted it in the car. Run it up and guess what!! it still smokes. We then thought maybe the exhaust was riddled with oil from the old engine?? no it was clean as a whistle!

We then borrowed a friends car fitted my turbo and exhaust to it to right out a dodgy turbo again and no smoke was produced by the donor car so it clearly cannot be a mechanical fault with our new engine turbocharger or exhaust. So after much trial and tribulation we have narrowed it down to being a management and fuelling issue with the people who installed the OMEX being less than helpful.

They have also blanked off my cold start valve with an aluminium plate pictures to follow has anyone got an OMEX 600 SERIES SYSTEM on an EFI engine that has also had this blanked off annd has anyone got any ideas what else could be causing the issues or am I rigth in thinking this is excessive fuel entering the engine??? also my oil is piss thin and stinks of petrol???

vroooom ptssssh

It amazes me how garages get away with this shite...

Why did you let them do all that work without clear evidence of "yes its this or that becuase look what we found" instead of "its that, no wait its this, oh hold on now its that"...

rstdave

iTrader: (3)

Get it to someone else to look at asap.....quite possibly a fuelling issue yes, alarm bells would have been ringing straight away for me when they didn't want you to take it back to them before giving blind advice over the phone tbh!

luke19790_3

do you have a AFR gauge fitted

Azusa

There exact words were that that cold start/idle control valve was pre historic and was not needed and we didnt allow them to change all of it we was changing all the parts to try and eliminate what the problem was but there was no clear answers to what it really was as we immediately thought blue smoke was it burning oil

Azusa

why did they feel the need to blank that off??? does not make any sense at all

luke19790_3

don't need the idle valve but they should fit one if you've paid for a working system

luke19790_3

how was they measuring the AFR?

Azusa

Hate to sound thick but what is the AFR?

luke19790_3

air fuel ratio

DazC

iTrader: (1)

Blue smoke is burning oil, but it's burning the oil because it's over fuelling and thinning the oil down that much that it is passing seals and rings and then being burnt!! Get it re-mapped as soon as possible!

Also, you would benefit from an idle speed control valve although they aren't required for an engine to run properly.

Azusa

finally an answer i was looking for I have spent well over 2500 pounds with this company having it wired up and i supplied the ECU and fuel pump i have then spent another 1500 on an engine and many other parts and repairs to cure it if it is down to this they will be receiving a letter

clarke5700

some ecus use iscv some dont. my kms dosent need it. and a good friend of mine had an omex fitted to his zetec turbo with NO iscv

edit just to say that his car was mapped by MSD

Joe91

My car had this problem, i had omex fitted back in the summer last year and whilst mapping it on the rollers it was pissing out blue smoke, the garage was an omex specialist though so he knew what he was doing..

I found the problem to be my head, i brought it off someone on here and they said its all ok to run on a 1.6cvh and turns out the head was actually made to fit a zetec bottom end so it had all the extra/blocked oilways, i dont know this was definatley the problem though as im about to try again!

Thanks, Joe

clarke5700

you dont mod any oil ways or add any when fitting a cvh head to a zetec bottom end. you block a few in the zetec block tho

DazC

iTrader: (1)

It's not that the ECU doesn't NEED the ISCV. It's that the engine needs it. Without an idle valve, the engine may just struggle to idle from cold, and can't correct idle for anti-stall beyond a bit of advance/retard. Some ECUs are not capable of controlling an ISCV.

DazC

iTrader: (1)

These are the AFR figures I would expect it to be mapped to (which you will need an AFR gauge to check)...

Starting around 9.5:1
Warm up cycle around 11.5:1 - 12:1
Normal operating temperature (usually above 70 degrees C coolant temp) around 14.7:1

Between cold and fully warm you would expect it to slowly lean off from the 11s to the 14s.

Azusa

it runs shite from cold never starts first time and wont let you rev it up till its warm either and the waste gate chatter is immense even at low revs and the hotter it get the worse it smokes

clarke5700

Ive mapped a few cars now. My car starts/ idals from cold with no problems!! Same as a few of my mates. Not all engines NEED an iscv what do you think they did back in the day of carbs and distributers?

DazC

iTrader: (1)

It probably won't idle so good when cold without the idle valve but once it's run for a few seconds (20 or 30 depending on how cold it is outside) it should idle on it's own. It should let you rev it as soon as it fires up though. It'll smoke worse once warm as the oil will have thinned out making it even easier for it to pass the piston rings.

mark_24v_wiring

iTrader: (1)

Simple answer is get it to someone better that can actually map an omex.

Call omex in the morning and ask them if they know anybody in your area that can do it properly they may even be able to supply you with a better base map that means it will idle better and not smoke they guys at omex can be very helpful

clarke5700

Have they atampted to map it yet? As if there was loads of blue smoke they may not have attempted/ started mapping it yet

clarke5700

Who is this company btw?

DazC

iTrader: (1)

Used a choke and vac advance capsules to increase the revs, AFR and timing.

I have also mapped a few cars including cars equipped with and without idle valves, and the very basic Omex 600 ECU that the original poster has fitted to his car. A car with an idle valve it easier to control when the weather is in minus figures. Yes an engine doesn't always need an idle valve but when you get to cold temperatures it certainly makes it easier to keep them running.

Azusa

They didn't even get it need the rollers they just said turbo straight away but after a shock of nearly a 3000 bill which I never expected. Didn't wanna spend anymore money at the time.
This coming was recommended by omex!!!!!!

mark_24v_wiring

iTrader: (1)

Well you can always try Steve Greenald 07774773824 he is near Rainham did a car for me on a DTA and it was spot on

Azusa

Sorry to sound think again what's a dta?

rsmark86

iTrader: (3)

Spill the beans, be nice to know who it is to stop people going there

Get it mapped ASAP and defo change that oil or you will be fitting a new engine again

Good luck mate, guzzler on here is back at powers and they specialise in omex, I could proberly sort a good price to get it sorted

mark_24v_wiring

iTrader: (1)

It's a standalone ECU just like your omex

Azusa

I live near stansted Anyone nearby to sort this problem?
Or names of company's I can try?

clarke5700

So the car runs like shit dosent start right and wont rev up from cold. And they havent mapped it yet?

Of corse it wont run right if it hasent been mapped lol.

Azusa

The car sit at ticks over fine but the blue smoke is the issue they said turbo so they never mapped it they left a base map on it, the rest is explain at the start of the thread and now they are saying the don't know it can't be management!!!!

clarke5700

100% agree it makes it easier but you said an engine needs it. as ive said ive not fitted one due to the fact i can get my engine to run well with out it.

DazC

iTrader: (1)

Thats because you said the “ECU doesn't need an ISCV”. No ECU needs an ISCV. Only an engine needs an ISCV.

It was just a confusing statement that implied that some ECUs had to have an ISCV. My response was merely to point out that the engine would “need” the ISCV and not the ECU.

clarke5700

yea bad wording in my part there but then the engine does not NEED it also

GUZZLER

iTrader: (3)

if it was me i would have wanted a good indication on what was causing the smoke, if it was one of our customers we would have done a compression and leakdown test before getting you to buy a replacement engine or turbo.
is the smoke black or blueish? does it smoke all the time, when revved or on over run?

rsmark86

iTrader: (3)

Get it down to power engineering Matt and Ian will get it sorted and they won't rip you off either

Azusa

I had a leak down test on the other engine and it was fine then that's when they said turbo!!!! Blue smoke once engine has got warm this engine was running fine and boosted fine 24hrs before hand in the other car

Azusa

Smokes without revving it up and more when revving it??

R4N SS

iTrader: (6)

i would change your oil asap mate and get it down to someone else who knows what they are doing.

Power Engineering are good and with Matt there - they wont rip you off