Hey guys,
I recently converted my l28e to l28et, and am running into some trouble. First issue I ran into is i reversed a line and flooded my engine. I not only flooded it, but some how managed to completely fill my oil pan with fuel. Cleared all of that out, new oil, and fixed that line. And now I start, but will not run. I have checked, the pcv valve to make sure it wasn't stuck, checked maf to make sure wasn't stuck, checked fpr (holding at 40), checked for stuck injectors. I checked plugs, 4 of 6 were wet, other 2 where very dark. I cleared the cylinders, new plugs, correct gap, still no vroom vroom. Compression is 180, and I have spark.

Symptoms-
Will start and die, if given throttle it happens even faster
It seems to be spraying what smells like fuel from the exhaust side of turbo (downpipe is off).
I noticed a significant drop in fuel pressure from the gauge when i tried to throttle a bit.
When i pull the fpr nothing comes out (only sign i know of bad fpr)

My only thought is that I'm flooding, but can't seem to track down why. Any help is appreciated guys.

 

If the engine starts and dies, it's probably a timing issue. Have you checked the mechanical timing?
And when you say you converted your L28E to L28ET... what did you do? Turbo engine swap, or just add turbo parts to your non-turbo engine? Are you running the turbo efi? Please be specific... thanks.

 

I have added turbo- to the non turbo. Didn't swap over efi yet. I know the timing was perfect before I started. I took it for a quick spin before pulling it into the garage to get started. Drove fine. To install the exhaust manifold I removed the intake. I have been going over the lines again and again, and can't spot, or think of one that I messed up or missed. I have also been comparing it to the diagrams from my repair manual. Thanks for the quick response.

 

Try it on ether only see if it seems similar. Did you replace the intake / exhaust gasket? I'm wondering if you created a big vacuum leak.

 

Thanks jam for the reply replaced the intake/exhaust gasket and when it does finally start it has about -20 vacuum

 

Well it sounds like the engine is flooding out... so focus on that cause. Either the ecu is causing it to flood due to bad signal from CHTS or AFM, or you toasted the injectors / fpr when you reversed the fuel lines. I suggest pulling the rail, put down a piece of cardboard over the intake, place the rail on top, and crank the engine to see what the injectors do...
And/or replace the fpr.