Trying to track down what I think is a fuel issue.

When I Crank the engine, it turns over but does not sound like it wants to start.

If I spray some starting fluid, it will start running, making me believe im not getting any fuel.

I have a fuel pressure gauge, and im getting fuel at the rail. I can hear the pump come on and prime.

When I look at the Microtech Software on my laptop, before I start cranking it shows the Ms on the injectors as being around 10.20, and when I actually crank the engine, it drops down to 8 Ms, which sounds like (to me) its dumping a lot of fuel.

Now, the car was running perfectly fine one day, and now just wont start.

Can anyone point me in the right direction of what to start checking to fix this issue?

 

Fuel pump running?

 

Pump runs when I turn the key on to the ON position, and primes the fuel rail. After about 10 seconds it turns off. I believe its running while cranking

 

If you have fuel pressure I would be looking at your injectors/injector wiring seeing as nothing would have changed on the microtech( i dont see why this would all of a sudden be a problem)

 

How would you suggest I test them? I've got the UIM off and can see the secondaries which should fire while cranking correct? Should I have someone crank the motor to and watch to see if fuel is begins prayed in... Or pull the plugs off the injectors and hook them up to a multimeter? Testing for...voltage?

 

set cylinder = 0

then the ecu goes into test mode and will fire sparks and injectors ( but with no fuel pump )

screwdriver in ear will tell you if injectors are clicking

 

Testing the injectors as suggested is a good step.

Are you getting an RPM signal while cranking? If not, there is an issue with your CAS.

 

I haven't had a chance to look at it yet (been working the last 10days straight), but I am getting a good RPM signal, and have already replaced the CAS. I'm not too sure about sticking a screwdriver in my ear though...lol. I'm off tomorrow and hopefully will have some time to check it out.

 

Check injectors fuse and check that you have power on the + side of the injectors while cranking, it sounds like that might be the issue.