If you turn the key crank the engine and release it before the car has a chance to start. The next time the engine and cranked it won't start, it would take a good few seconds cranking to start.

Last time I thought the engine was flooded with fuel. So I removed the fuel injectors and without any fuel entering the engine I cranked up the engine and it started first tie and remained started for 10 seconds. This was without fuel.

Possible Solution?

could it be a crankshaft position sensor fault?

Has any one had similar problems?

Can any one advise me when any sensors are located?

The engine cranks and now and again sounds like it wants to start but then it's back to just cranking!

Checked

There is a spark from the HT leads

Fuel to the injectors

Fuel pump starts upon ignition (petrol)

Fuel Pump Changed

Fuses have been checked too

Distributor Cap Changed

Rotor Arm changed

Spark Plugs Changed

Fuel Filter Changed

Edited 7 May, 201115 yr by vw_tees

Okay...It's started!!

I removed the fuel pump relay, then started the car and it started straight away, then turned offed.

Put the relay back and cracked the engine and again it started straight away...but took afew seconds to build up it's rev.

What is going on? Crankshaft Sensor fault?

You obviously have a problem with fuel rather than ignition.

I just wonder if the fuel return pipe may be blocked/restricted. It might be worthwhile disconnecting the return pipe, fitting a temporary hose to a container, starting the engine and seeing how it runs. Alternatively, try blowing (by mouth) through the return pipe to see if there is any restriction.

If there is no fault in this area, you may have a faulty fuel pressure regulator, but this is a bit of a long shot, as it isn't a common problem.

Regards.

You obviously have a problem with fuel rather than ignition.

I just wonder if the fuel return pipe may be blocked/restricted. It might be worthwhile disconnecting the return pipe, fitting a temporary hose to a container, starting the engine and seeing how it runs. Alternatively, try blowing (by mouth) through the return pipe to see if there is any restriction.

If there is no fault in this area, you may have a faulty fuel pressure regulator, but this is a bit of a long shot, as it isn't a common problem.

Regards.

I think you are right.. it is a fuel problem. It's basically getting too much fuel into the engine.

A ruptured fuel pressure regulator sounds like the symptoms that my car is having. Would you know how I can check a faulty regulator?

Tanks for your help.

Unless you have access to a pressure gauge and fitments, it might be easier to check it by substitution.

Regards.

P.S. Pressure should be 2.5bar. (about36 p.s.i.)

I've got a pressure gauge, It's not a fuel pressure gauge, but just a normal one to check piston compression.

Where can I plug the gauge into?