Hi,

 

On the recent NW RR, i found i had a fueling problem that i was running lean on boost above 0.7bar and you could here it when up next to it. Tonight is the first real chance i've had to have a look.

 

I've tested the fuel pressure between the fuel filter and the fuel rail

 

around 40psi on idle

jumps up to 45 psi if i pull the pipe to the intake off the regulator

jumps up around 5-7psi when revving.

 

So all seems good??

Any thoughts on what could be causing it and what to test now?

 

Cheers,

Ste

just had the ECU out and its definately a Mines

 

Has the guarantee plaque on number 10223

 

still has the security stickers (ones that look like they void a warranty) in place, so i'm going to assume thats not the problem!

 

anyone have any experience of what i should look at before going to the injectors?

just had the ECU out and its definately a Mines

 

Has the guarantee plaque on number 10223

 

still has the security stickers (ones that look like they void a warranty) in place, so i'm going to assume thats not the problem!

 

anyone have any experience of what i should look at before going to the injectors?

 

you could do with pluging it into a conzult and going for a blast..there is a facility to check the duty cycle of the injectors to see if there getting maxed out

you could do with pluging it into a conzult and going for a blast..there is a facility to check the duty cycle of the injectors to see if there getting maxed out

 

OK, cool, i ordered the consult from Dan. Looks like i'll have to wait until he gets back.

 

thanks

It could well be the mines ecu, they are mapped to run on higher octane fuel and you will be better off running a chip to run uk fuel.

It could well be the mines ecu, they are mapped to run on higher octane fuel and you will be better off running a chip to run uk fuel.

 

You might well be right, as i've tested most of what i can from the service manual with consult and everything is running well.

 

Does anyone know where i could get a chipped ECU from?

Going to try another chipped ECU with a JD chip i have. Hopefully that will cure it.

 

I'm suprised that the mine chip doesn't try to over fuel under boost, as thats what i've seen before and been told by a number of people.

John Dixon and AndyP are the main suppliers, I should imagine they have spare ecus hanging around.

 

Another culprit could be the fuel pump getting towards the end of its days, but uk fuelled chip should be done anyway!

Going to try another chipped ECU with a JD chip i have. Hopefully that will cure it.

 

I'm suprised that the mine chip doesn't try to over fuel under boost, as thats what i've seen before and been told by a number of people.

 

It probably does overfuel in japan, but their fuel is much much higher in octane than the Uk.

John Dixon and AndyP are the main suppliers, I should imagine they have spare ecus hanging around.

 

Another culprit could be the fuel pump getting towards the end of its days, but uk fuelled chip should be done anyway!

 

I will pm them both then, cheers!

 

The fuel pump and regulator seems ok, the voltage and pressure is fine from stationary testing.

 

I guess i need to do the fuel pressure tests under load to confirm the pump is working as it should.

 

thanks for the pointers!

It probably does overfuel in japan, but their fuel is much much higher in octane than the Uk.

 

lol, i think you may have it, have just been thinking they have 100 or more octane as standard don't they.

 

Here's hoping there hasn't been any damage done.

Im running BP Ultimate fuel now as it is 102 octane as ive also got a mines ecu :)

Im running BP Ultimate fuel now as it is 102 octane as ive also got a mines ecu :)

 

Is that a methanol mix? how much is that a litre?

 

Cool, i didn't realise there was anything more than 97 optimax.