Running rich

Post Mon Jul 14, 2014 9:56 pm

Hi guys I have a G reg 320i se manual and I think its running rich I only get 44miles to 10litres of fuel does this sound right?

Thanks

Post Mon Jul 14, 2014 10:17 pm

Depends on what sort of driving you do, but around 22mpg sounds rather low.

Check the blue temperature sensor as a first port of call:

http://www.e30zone.net/e30zonewiki/inde ... emp_Sensor

Also check that the spark plug tips are a light brown/tan colour. Sooty tips indicates overfuelling.

Post Mon Jul 14, 2014 10:18 pm

Is that town driving, or on a run? 20mpg isn't great, but it's not far off what an M20 normally does.

Give it a service, and send the injectors off to be rebuilt, and your economy is bound to improve. You also need to brim the tank, drive it and then brim it again to properly confirm fuel usage.

Post Wed Jul 16, 2014 8:11 am

Ok thank I've played with the air flow meter and seems to be better now.

Post Wed Jul 16, 2014 10:24 am

Paulcl09 wrote:Ok thank I've played with the air flow meter and seems to be better now.

Oh dear!

Post Wed Jul 16, 2014 11:09 am

Paulcl09 wrote:Ok thank I've played with the air flow meter and seems to be better now.

You have now damaged the car. Do not pass go, pay £200 to a mechanic to fix your mistake.

Post Wed Jul 16, 2014 11:38 am

Grrrmachine wrote:
Paulcl09 wrote:Ok thank I've played with the air flow meter and seems to be better now.
You have now damaged the car. Do not pass go, pay £200 to a mechanic to fix your mistake.

The car is running better than ever if the engine buggers I don't care its a crap, swapping it out for m50 2.5 next month.