Fuel problem (or maybe not...)

[Steve Robinson]

Car is turning over but not starting, not even a cough so with my basic knowledge that must mean no spark or no fuel.

 

Have disconnected a pipe on the fuel rail to see if there is petrol at that point. When turning the engine over there is nothing coming out and the moment I release the starter button it then deposits a glug (technical term!) of fuel.

 

My numpty brain says this must mean it is turning over with no fuel in the engine and then soaking the spark plugs the minute I release the starter button. But as I know so little the above fueling procedure may be absolutely right... which is it?

 

Cheers

 

Steve

[Peter T]

Type of car????????????????????

Injection???????????????

ECU/ plipper??

 

R500 Mango Madness

[Steve Robinson]

Doh! Sorry in my haste to post I forgot a few essentials 😬

 

98 K series supersport running standard MEMS with immobiliser off at all times - no plipper (its an ex race car)

 

Steve

[Peter T]

Have you tried the reset button on the bulkhead?

 

R500 Mango Madness

[Peter T]

Have you also checked the fuse for the pump and make sure that the relay is in properly.

 

R500 Mango Madness

[Steve Robinson]

Have checked the fuse, and it doesn't have a reset as it is a race car.

 

Does it sound wrong to you? On pressing the starter button should I be getting a flow of fuel, a pulse of fuel or nothing until I let go as it is doing?

 

On further checking it looks like i'm getting no spark. Fuel pump is definitely priming on ignition though which if it was imobiliser issue I thought it wouldn't do????

 

Steve

[CageyH]

It does not have the inertia cut off switch?

 

Try removing the fuel pipe and momentarily switching on the ignition. You should see if you have fuel or not.

Easiest way to check for a spark is to whip out a plug, and fit it to the HT lead. Hold this against the block with a cloth, or other way of insulating your hand, and turn the engine over. If you have a spark, you should see it.

 

Then you can work from there...

[Steve Robinson]

Cagey - that's what I tried with the fuel pipe. The fuel doesn't come out on cranking but then does when you release the starter button.

 

Steve

[Peter T]

Does it prime when you switch on the ignition?

Can you hear the fuel pump running?

 

R500 Mango Madness

[CageyH]

Have you got a spark?

 

It sounds like fuel issue to me.

If you turn on the ignition, you should see fuel come out, before cranking.

Which pipe have you disconnected to look at the fuel?

[Steve Robinson]

All sorted! Fuelling is good, lack of spark was caused by a knackered coil. Fitted new one and it runs perfectly 😬

 

Cheers all.

 

Steve