2.8 stalls under load?

[bimdub]

like I said I assumed...since when I pulled a front one it looked NEW......I never thought to check the fitment....or the back three....my bad.....

[bimdub]

update, well that worked for a day.....its back again, the plugs were totally fouled, I changed them again, and tested the CTS....which read constant 450 ohms at all temperatures, so I replaced that and just for good measure tossed in a new O2 sensor.....well it ran for about fifteen minutes and then it started running very poorly (actually worse) betting the plugs are fouled again.....since when I pull the one injector wire I can get to without removing the manifold it actually runs better. I mean this thing is running rich.....very rich....I checked the spray pattern on the injectors and they spray good and do not leak.....what the heck....

[60dgrzbelow0]

http://autorepair.about.com/library/faqs/bl830f.htm

Check with Robertisaar about the "Speed Density Sensor" Update...

Here is a decent article on the different sensor systems to aid in understanding...

http://www.carcraft.com/techarticles/electronic_fuel_injection/index.html

[bimdub]

I thought we had already established that it had the update....anyhow it starts and runs fine on ether (starting fluid) but the problem is now only when the engine is warmed up and going into closed loop, cold (with the new CTS) it runs great. I redid the fuel pressure checks

cold 40 psi key on engine off
cold 35 psi engine running with regulator hooked up 40 psi with regulator unhooked

hot 45 psi key on engine off
hot 45 psi engine running regulator hooked up or disconnected

when I clamp the return hose I get a peak of about 65 psi

[60dgrzbelow0]

update, well that worked for a day.....its back again, the plugs were totally fouled, I changed them again, and tested the CTS....which read constant 450 ohms at all temperatures, so I replaced that and just for good measure tossed in a new O2 sensor.....well it ran for about fifteen minutes and then it started running very poorly (actually worse) betting the plugs are fouled again.....since when I pull the one injector wire I can get to without removing the manifold it actually runs better. I mean this thing is running rich.....very rich....I checked the spray pattern on the injectors and they spray good and do not leak.....what the heck....

Were they fouled and if so...with what? Oil...or Fuel? As for the excellent EFI response to testing (on one or all of them?) it might be time to check the number on their barrels and compare it to Stan Weiss' online chart here and see if perhaps...someone B4 you ...installed the wrong fuel injectors...

http://users.erols.com/srweiss/tableifc.htm