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EML light on 0230 code
Posted: Thu Sep 29, 2016 1:06 pm
by OllyRag
Good day,
Wonder if ant of you have come across this problem before,
Car starts and drives perfectly,accelerates and pulls fine. Flats out at 2600 / 2800 rpm. EML on.
No smoke / leaks / misfiring etc
Passed MOT Monday 25 this week. 112000 miles (1500 miles from last MOT)
Fuel and air filters changed prior to MOT.
Checked connections / multi plugs in engine bay.
Had car from new so know it has'nt been messed with.
Don't have any diag kit only cheapo plugin which gives 0230 code as only fault.
If anyone could help greatly appreciated.
406 2.0 LX 110 Estate
Reg 01/11/2000
Re: EML light on 0230 code
Posted: Thu Sep 29, 2016 1:17 pm
by fattail95
If I were you I'd get it hooked up to planet, that will give you a more in depth analysis of what is wrong.
Re: EML light on 0230 code
Posted: Thu Sep 29, 2016 3:41 pm
by OllyRag
Would if anyone had one near me
Re: EML light on 0230 code
Posted: Thu Sep 29, 2016 7:35 pm
by GingerMagic
P0230 Fuel Pump Primary Circuit Malfunction
It seems your fuel pump hasn't got enough ooomph to cope with demand at higher revs - I'm not sure of the cause though, may just be an electrical issue...??
Second hand pumps are available on eBay etc, and rebuild kits are also an option if you need to recondition your pump.
Re: EML light on 0230 code
Posted: Thu Sep 29, 2016 9:51 pm
by Doggy
Has to be something the ecu can detect. I don't know but I'm guessing you wouldn't get this code with low rail pressure.
There's a solenoid to enable/disable the 3rd piston in the pump at low speeds, uses all 3 from about 2100 RPM up, IIRC. Maybe that's got disconnected / failed?
Re: EML light on 0230 code
Posted: Thu Sep 29, 2016 11:15 pm
by GingerMagic
Good point.
The 3rd piston connector is the orange one on top of the pump.
Re: EML light on 0230 code
Posted: Fri Sep 30, 2016 1:14 am
by dirtydirtydiesel
Doggy wrote:Has to be something the ecu can detect. I don't know but I'm guessing you wouldn't get this code with low rail pressure.
There's a solenoid to enable/disable the 3rd piston in the pump at low speeds, uses all 3 from about 2100 RPM up, IIRC. Maybe that's got disconnected / failed?
I didn't Doggy & mines less than half what it should be

Re: EML light on 0230 code
Posted: Fri Sep 30, 2016 1:25 am
by dirtydirtydiesel
OllyRag wrote:Would if anyone had one near me
If your not a member of the 406 coupe club might be worth joining,
They have a pp2000 map showing people who have it.
There's our own Jonsnowman just outside Epsom & mpg66 near Edenbridge
Oh & mixman1 near Dover, Markw also travels to people but of course there is a charge for this.
Hope this is of some help.
Re: EML light on 0230 code
Posted: Thu Nov 03, 2016 8:58 am
by OllyRag
Just wanted to thank Chris from Folkestone who made contact with me and ran his PP over my car.
Cheers mate, Thanks again.
Re: EML light on 0230 code
Posted: Thu Nov 03, 2016 9:45 pm
by dirtydirtydiesel
So (with baitted breath) ,
What was the diagnosis, did you fix it

Re: EML light on 0230 code
Posted: Fri Nov 04, 2016 12:38 pm
by Doggy
The suspense is getting to me too.
Re: EML light on 0230 code
Posted: Sat Nov 05, 2016 11:52 am
by OllyRag
Sorry Guys,
Looks like I need a regulator valve, I'll get one soon.
Not too bothered at the mo, busy in the garage restoring a Yam 600 4 pot, keeping me occupied.
Cheers