Injector Firing

[325_driver 422]

Have been looking every where

Any one know the order in which injectors fire

or if they are batch fired (e.g. batches cylinders 1,3 then 2,4 then 5,6 )

Where do you reckon i could get this information?

Any help on that would be greatly appreciated

Next, Any one had a fuel pressure regulator with problems ?

I have a sluggish car at the moment, and think its fuel related,

Fuel filters new enough, but going to replace it any way,

what can i expect if the fuel pressure regulator is playing up or needs replacing ?

Thanks heaps

MERRY CHRISTMAS !

[greenday-rulz21 5]

Any help?

[325_driver 422]

Any help?

so the injectors fire the same as the spark ??

[CamB 48]

so the injectors fire the same as the spark ??

I doubt it - they're probably batch fire ---> all at once.

If they are paired it would be 1+6, 5+2, 3+4, but I don't think the E30s had any sort of sequential fire (happy to be proved wrong).

[Greg111 13]

I doubt it - they're probably batch fire ---> all at once.

If they are paired it would be 1+6, 5+2, 3+4, but I don't think the E30s had any sort of sequential fire (happy to be proved wrong).

I would have thought it was the same sequence as the spark but just slightly earlier?

[CamB 48]

I would have thought it was the same sequence as the spark but just slightly earlier?

On your car, yes. E30 is too old. I am pretty sure it has some sort of batch fire - it might split them into pairs or threes (that's usual), but am pretty sure the computer only knows crank angle not cam position.

Ok did some more research (I want to know) - they are two groups, odd and even - page 34 of this 16mb doc:

http://shark.armchair.mb.ca/~dave/BMW/e30/e30_89.pdf

I looked at the '84 diagram and 123 and 456 are grouped.

[Apex Effects 3]

On your car, yes. E30 is too old. I am pretty sure it has some sort of batch fire - it might split them into pairs or threes (that's usual), but am pretty sure the computer only knows crank angle not cam position.

Ok did some more research (I want to know) - they are two groups, odd and even - page 34 of this 16mb doc:

http://shark.armchair.mb.ca/~dave/BMW/e30/e30_89.pdf

I looked at the '84 diagram and 123 and 456 are grouped.

yeah i have the intake off, and it appears they are grouped in a (it would be hard to fit it any other way)

5,6 seem to be grouped 3,4 and 1,2 but not sure whether this means these are the batches they are fired in.

Not sure whether this is a deed end to my power loss in the e30.

[Greg111 13]

Sort of a waste spark set up but with fuel?