Car has no power and dies

[bkrathwohl]

My car has difficulties starting. It will start and idle at like 300 rpm for a few seconds unless I give it gas. If I hold it at 2000 it will stay there for a while and drop way down to 300 then go back up to 2000. It only does this until it warms up a bit and then it idles normal.

When I go to drive it, after its warm, the car feels like it has no power at all. Even at WOT it barely moves. Then when boost starts the car shuts off. I've only made it up to about 3200 rpm at WOT and was going like 10-15 mph before the car decided it wanted to shut off.

Now I've recently replaced the fuel pump, fuel lines, fuel filter, added an AFPR, and changed the CAS. A buddy of mine thinks that it could be water in the tank from when the fuel pump was changed. Do you guys have any idea what could cause something like this?

I forgot to mention. I do have DSMLink with no tune. So it is all zeroed out. We also tried it with the 2g estimates on. And then even with the stock ECU, all with the same issue.

 

[rlacasse1]

Have you done a compression check?

Have you looked for milky crap in your oil? Or for oil in the coolant?

 

[bkrathwohl]

I have done a compression test while cold. 130 120 120 130. I will try to do one tonight while the car is warm.

I will take a look at my oil and coolant tonight.

 

[rlacasse1]

Is you MAF plugged in. And are you recirculated.

 

[bkrathwohl]

The MAF Is plugged in and it is a new maf as of 3 months ago. And yes I am recirculated.

 

[livedsm4g63]

put some new gas in (having the fuel tank cap off for a couple weeks may have something to do with it)

compression test

we could also double check the cas sensor, and make sure its at the correct location when #1 is at tdc

we should also look at your fuel pressure when driving if we can rig up a way so we could see the gauge. i noticed when we rev'ed up the engine the fuel pressure dropped. im wondering if you have a small leak somewhere. Im not totally sure but should the pressure be held? say even after the car has been off for a night? Because i know yours is at zero whenever we start out for the day.

 

[bkrathwohl]

I'm pretty sure fuel pressure leaks out over time. Which is why your car cranks over more in the morning than if you had already been driving it for a while. Unless im going about this the wrong way..