Problem Caused by running E85 - now what is it?

[sen2two]

Short story, I ran a tank of E85 through the car and shortly afterward, I lost an injector on the rear rotor. I replaced the injector and all was fine for a while, now the car is exibiting other strange symptoms.

Please try to ignore the fact that I am using a Haltech E6X for fuel and ignition. This ECU has over 30,000 miles on it with no trouble. The issue is intermittent, so I doubt that it is ECU-related.

Symptoms:
Car starts great cold, won't even try to fire warm. Before this problem arose, it started hard cold and perfectly warm. Compression is good, spark is good, I haven't had any time to look at the fuel system, but I am pretty sure that the problem is there.
Car will not run at partial throttle below 3,000 rpm and stutters really bad at WOT. (This happens warm or cold) My wideband is reading dashes, but this is expected as the car is misfiring.
Car will not run at WOT past about 4,000 RPM cold, but can get to 8,000 RPM warm. Once again the wideband is pegged lean. It is making like 50 Hp.
Car will not even try to idle.
Here is the interresting thing:
Sometimes the car idles perfectly and runs fine for a little while.
If I shut the car off while idling perfectly, it will restart just fine.
Other times it will quit completely, even from high revs and will not even try to restart. Waiting about 15 minutes seems to make this ok. 15 minutes is not enough time for the engine to cool off, so I doubt that the problem is a hot engine/cold engine thing.
Driving it tonight, I got it to kick in hard at about 7,000 RPM and then it cruised for several miles normally under partial throttle at about 2200 rpm, then it quit. I got it going again by flooring it, but it would barely run the rest of the way home.

Interestingly, the starting cold but not warm indicates that the car is getting too much fuel, but the plugs are never even wet after trying to get the car to start when warm. Even when not misfiring, the wideband never really gets out of max lean except on throttle transitions where I might see 16:1 AFR

Anyway, I hesitate to hastily categorize this, I am mostly looking for logical suggestions as to where on the fuel system to start. When I get time I intend to put a fuel pressure gauge on it. At this point I am looking for ideas, because the intermittent nature of the problem has me baffled.

Let me reitterate, I did connect a compression gauge (piston engine style) when it wouldn't start. No bounces below 60 psi on either rotor. I also had spark while cranking when it wouldn't start.

I may end up replacing the entire fuel system anyway, so this might not be an issue.

[NoDOHC]

Short story, I ran a tank of E85 through the car and shortly afterward, I lost an injector on the rear rotor. I replaced the injector and all was fine for a while, now the car is exibiting other strange symptoms.

Please try to ignore the fact that I am using a Haltech E6X for fuel and ignition. This ECU has over 30,000 miles on it with no trouble. The issue is intermittent, so I doubt that it is ECU-related.

Symptoms:
Car starts great cold, won't even try to fire warm. Before this problem arose, it started hard cold and perfectly warm. Compression is good, spark is good, I haven't had any time to look at the fuel system, but I am pretty sure that the problem is there.
Car will not run at partial throttle below 3,000 rpm and stutters really bad at WOT. (This happens warm or cold) My wideband is reading dashes, but this is expected as the car is misfiring.
Car will not run at WOT past about 4,000 RPM cold, but can get to 8,000 RPM warm. Once again the wideband is pegged lean. It is making like 50 Hp.
Car will not even try to idle.
Here is the interresting thing:
Sometimes the car idles perfectly and runs fine for a little while.
If I shut the car off while idling perfectly, it will restart just fine.
Other times it will quit completely, even from high revs and will not even try to restart. Waiting about 15 minutes seems to make this ok. 15 minutes is not enough time for the engine to cool off, so I doubt that the problem is a hot engine/cold engine thing.
Driving it tonight, I got it to kick in hard at about 7,000 RPM and then it cruised for several miles normally under partial throttle at about 2200 rpm, then it quit. I got it going again by flooring it, but it would barely run the rest of the way home.

Interestingly, the starting cold but not warm indicates that the car is getting too much fuel, but the plugs are never even wet after trying to get the car to start when warm. Even when not misfiring, the wideband never really gets out of max lean except on throttle transitions where I might see 16:1 AFR

Anyway, I hesitate to hastily categorize this, I am mostly looking for logical suggestions as to where on the fuel system to start. When I get time I intend to put a fuel pressure gauge on it. At this point I am looking for ideas, because the intermittent nature of the problem has me baffled.

Let me reitterate, I did connect a compression gauge (piston engine style) when it wouldn't start. No bounces below 60 psi on either rotor. I also had spark while cranking when it wouldn't start.

I may end up replacing the entire fuel system anyway, so this might not be an issue.