My L28E won't start, I have compression, spark, cam and ignition timing are both correct, I'm getting fuel.... Only thing I can think of is I don't have any oil pressure but surely the engine would still start?

I'm out of ideas...


Can anyone help?

mmmk

Well does anyone know if L28E set ups have a cut off if there is no oil pressure?

And where abouts is the crank angle sensor?

never seen an L28E but i almost ga-ron-tee it don't have a crank angle sensor.

check your ignition and cam timing again

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1971 Datsun 1600 - Z18ET
1996 Suzuki RGV250 VJ22
1996 Suzuki RGV250 SP VJ23

Make sure the fuel pump is actually running and the rail is pressurised.

Is the battery cranking over the engine fast enough?

There is fuel going into the cylinders, I just wondered whether the injectors were shooting it at the correct time. I'm positive cam timing is correct and ignition timing is pretty darn close. It won't start of Aero start.

Not cranking fast enough is the only other option I guess. I haven't tried towing and roll starting since I've adjusted the timing but I have 2 fully charged batteries hooked up at the moment.

Is it even spluttering? Injector timing doesnt really matter that much, it still should at least try to start. Maybe wildly too much fuel, is it wetting the plugs? Perhaps the fuel pressure regulator is stuck and giving it too much pressure and flooding it?

it stinks of fuel and the plugs are pretty wet, all my intake was soaked with petrol aswell.

Does anyone have a picture of the front of an L28E particularly the distributor and wires around it?

There is a loose wire in there somewhere I think may be connected to injector timing.

How did you verify that you have spark?
You must check that spark exists at the spark plug because this proves that it is getting through the distributor (but not necessarily in the right order!!).

How long since the donk last ran?

Sounds like it could be flooded? Does the L28E computer take a MAP sensor or TPS (guessing not MAF)? If the computer thinks there is no vacuum or the throttle is wide open that could explain way too much fuel being injected.

Spark plug in lead, earthed it out and had spark. Leads are in the right firing order etc.


Well the head was running on a different engine about 6 months ago, the pistons, rings, mains, water pump, seals, etc. are all brand new, wouldn't have a clue when the crank and rods were running last. It's a rebuilt engine I just put in my skyline...

Ok, how would I go about fixing this??

I'm really unsure what the go is with MAP or TPS

Jayson

its non turbo is'nt it? if so you should have a map.

if the MAF is not connected properly the car will not kick overmake sure you connectioins are good

with TPS i imagine you should be able to test it with a multimetre, you will need to find the voltage specifications for it tho, or someone here might have it

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Greg @ JustSR.Com
NixCars
Pro240c

I really dont know anything about the injection setup on an L28E, but I am sure someone here will. Alternatively there must be some info on the net somewhere?

As a rough guide if it has TPS you are looking for something on the side of the throttle body with about 3 or 4 wires coming out of it, that is the throttle position sensor (if it has one).

If it has a MAP sensor you are looking for a small device (in the order of 3x3x1.5 cm as a guess) with a vacuum line going in one side and probably 3 wires going to the computer out the other.

If it has a MAF sensor you are looking for a big black box between the air filter and the throttle body with wires coming out of it. I believe most (all?) management systems that use MAF will use at least one of a MAP or a TPS sensor.

i thought the MAP sensor was a replacement for the MAF when you go turbo

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Greg @ JustSR.Com
NixCars
Pro240c

Have you had the distributor drive out ?

If so, did you put it back in properly ?