The moderators have kindly let me repost this thread
http://www.cliosport.net/forum/showthread.php?t=269964
http://www.cliosport.net/forum/showthread.php?t=269964
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Running Problem with OMEX
- Thread starter MarkM
- Start date
I have been getting an intermittent fault which is gradually getting worse.
Car seems to start OK.
I have an AFR meter so I can see the AFR reading.
When its cold it misfires and runs very rich (9.8 - 9.9 on the AFR), this seems to clear up within a minute or so.
At idle the AFR should be 14.7 but it keeps jumping down to 12.9 (too rich) then creeps up to 14.7 then jumps down again to 12.9. It stalled for the first time on Saturday when on idle it just went very rich and stopped.
On a light throttle at low revs the AFR reading seems to move about alot between rich and lean(before the problem it was stable).
When you put your foot down it is OK.
I have changed leads and TDC sensor so far, possibly coil pack next?
Was thinking maybe the lambda probe which is a wide band one for the innovate kit. But it appears to be worse when its cold and not in closed loop control. Also the meter is reading OK with no errors.
Its times like this when I wish I could just take it to a local garage to get it sorted but with the OMEX it becomes much more difficult.
Anyone recommend a specialist in the Coventry area?
Car seems to start OK.
I have an AFR meter so I can see the AFR reading.
When its cold it misfires and runs very rich (9.8 - 9.9 on the AFR), this seems to clear up within a minute or so.
At idle the AFR should be 14.7 but it keeps jumping down to 12.9 (too rich) then creeps up to 14.7 then jumps down again to 12.9. It stalled for the first time on Saturday when on idle it just went very rich and stopped.
On a light throttle at low revs the AFR reading seems to move about alot between rich and lean(before the problem it was stable).
When you put your foot down it is OK.
I have changed leads and TDC sensor so far, possibly coil pack next?
Was thinking maybe the lambda probe which is a wide band one for the innovate kit. But it appears to be worse when its cold and not in closed loop control. Also the meter is reading OK with no errors.
Its times like this when I wish I could just take it to a local garage to get it sorted but with the OMEX it becomes much more difficult.
Anyone recommend a specialist in the Coventry area?
No, throttle position feedback is steady at idle and under load.
Tom
ClioSport Club Member
EV (s)
An ECU is being loaned to me by OMEX next week. If this is not the problem Hillpower will be checking the loom.
I will keep the thread updated as it may prove useful/interesting to other forum users.
seb
ClioSport Club Member
Clio trophy
no problem, i try to help were i can. seems the best logical move now really. sorry i missed that you said it had been taken to a garage before in the other thread. but maybe this is a problem best left to the experts to have another look at and you could explain all the different things you have done too?
edit - you are to hillpower. sounds an excellent idea.
edit - you are to hillpower. sounds an excellent idea.
I will post up some pics later of the ECU to show the construction and board corrosion. After speaking with OMEX today they said it is OK to mount in the bay as long as it is not in any direct water spray.
Tom
ClioSport Club Member
EV (s)
All you need to do is look at engine bay corrosion to realise that the the bay is not a good place to put anything fragile, it is a very damp place at 70-mph in a decent rain shower.
Surely thats fairly obvious?
Roamer (possibly the first person ever to use an omex on a clio) ran his in the glovebox.
After looking at those pictures, you'd be mad to run one in the engine bay.
? of course there is going to be water in the bay! i really wonder sometimes about you.
Last edited:
Polo GTi
^^ What Tom said
Thats fucked, and if its not your problem I'll eat my own s**t, my Brothers flu-less fire did the same, the pcb exposed to the elements done by a s**t installer, a quick bend of some alumiminum and replcing the pcb, job done, fire now works a treat
Thats fucked, and if its not your problem I'll eat my own s**t, my Brothers flu-less fire did the same, the pcb exposed to the elements done by a s**t installer, a quick bend of some alumiminum and replcing the pcb, job done, fire now works a treat
Just got back from a longer drive and it hasnt missed a beat...
I am going to try and mount it up by the fuse box for now but will obviously need an extension for the loom to get it into the glove box.
Its a shame really because I think a spray of WD40 before it was installed and a regular check and clean would have been enough to stop the damage. Its probably moisture build up in damp cold weather, not getting wet. The OMEX case is just a metal box with no rubber seals
Oh well hopefully it will last a bit longer.
I am going to try and mount it up by the fuse box for now but will obviously need an extension for the loom to get it into the glove box.
Its a shame really because I think a spray of WD40 before it was installed and a regular check and clean would have been enough to stop the damage. Its probably moisture build up in damp cold weather, not getting wet. The OMEX case is just a metal box with no rubber seals
Oh well hopefully it will last a bit longer.
A new one is only £600 so I am not that bothered. :clown:
lol buy two!
Maybe try this Omex http://www.cliosport.net/forum/showthread.php?t=276836 up for sale now.
M
mini-valver
Voila! Airing cupborad idea FTW 
I'm not having a dig here at the way these are installed or OMEX themselves but if that amount of corrosion has gone on inside the ECU theres something wrong somewhere in the build quality of the unit orwhere it's placed in the bay.
It does'nt take a genius to realise damp is'nt linked to water spray, condensation will sit inisde the unit forever, as Mark has found. Engine bay is always going to be damp so anyone that says it's a suitable place to put the ECU is diluded.
As Stan suggests, behind the bulkhead in the scuttle area is better but personally I would'nt be happy unless it was inside the car.....
I'm not having a dig here at the way these are installed or OMEX themselves but if that amount of corrosion has gone on inside the ECU theres something wrong somewhere in the build quality of the unit orwhere it's placed in the bay.
It does'nt take a genius to realise damp is'nt linked to water spray, condensation will sit inisde the unit forever, as Mark has found. Engine bay is always going to be damp so anyone that says it's a suitable place to put the ECU is diluded.
As Stan suggests, behind the bulkhead in the scuttle area is better but personally I would'nt be happy unless it was inside the car.....
Tom
ClioSport Club Member
EV (s)
Thing is with corrosion is once it starts its not exactly easy to stop.
Im astonished to learn that more people have ecu's installed in such a way!
Madness really.
You could enclose it in a waterproof housing without having to extend anything.
http://www.waterproof-cases.co.uk/peli_small_cases_peli_1120_case-p-23_28.html
You could mod a pelicase with relative ease and they aren't expensive.
Im astonished to learn that more people have ecu's installed in such a way!
Madness really.
You could enclose it in a waterproof housing without having to extend anything.
http://www.waterproof-cases.co.uk/peli_small_cases_peli_1120_case-p-23_28.html
You could mod a pelicase with relative ease and they aren't expensive.
Last edited:
M
mini-valver
In theory a waterproof case would be good but it just looks s**t, lol.
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