Engine stalling with any throttle
Engine stalling with any throttle I have a 01camaro that i just finish installing a 80e, 6.0 stock rebuild with btr stage 2 turbo cam and on3 turbo kit, car is 3bar SD tuned 80lb injector. Car will fire up idle around 1k for about 10 sec then start idling down till it stalls if u give any throttle it stalls immediately. fuel is set to 43psi tuners spec and fuel psi is steady till engine gets down under 450rpm then it fluctuates any help would be great
You have any type of scan tool? Thats the best place to start, see if the pcm is showing any fault codes and go from there. Has this thing been tuned yet? Could be an issue in the tune that wont run this combo, or a sensor being screwy. Still comes back to needing a scan tool...
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Almost wonder if the maf isn't failing out. Even though it's a 3barSD tune maf still needs to fail. Also, 43psi seems low to me - especially for a turbo build. Typically need more pressure for boost
In the tune the maf is zeroed out and I tried it with the maf hooked up made no difference my tuner said 43psi for the 80lb injector my buddy hooked the scanner up got a crank code so changed it that went away only thing he said was the fuel trims where way off he didn't elaborate on that any so im going to try some new o2 this weekend if that don't do it im going up to the tuners shop and see what he thinks
43 is fine for base on a turbo. The 80s will support a lot... but fuel pumps typically don't love 70+ psi unless its a Walbro 450 or an Aeromotive 1000.
If your car dies on throttle input, you are either going really lean or going really rich.
You need to check to make sure you aren't falling down to 20psi with throttle. So put a mechanical gauge on it.
Also, you need to tune for those injectors. You could be flooding the motor. But I don't know what was done in the tune. Just because it has a 3-bar tune doesn't mean anything to me. Hell, the VE table could be incredibly lean at 1200RPM and that's killing it.
If your car dies on throttle input, you are either going really lean or going really rich.
You need to check to make sure you aren't falling down to 20psi with throttle. So put a mechanical gauge on it.
Also, you need to tune for those injectors. You could be flooding the motor. But I don't know what was done in the tune. Just because it has a 3-bar tune doesn't mean anything to me. Hell, the VE table could be incredibly lean at 1200RPM and that's killing it.
Steve williams (frost) at efi performance did the tune, so I would imagine he did everything right he is a very good tuner. unless between me and him there was a miss communication of mods but don't think so. I do have a wideband but it goes from 18 down to 10 and sometimes will sit around 13-15. I have a liquid filled auto meter gauge on the psi port of a fuel lab regulator and have it set to 43ish without vac port on.
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6.0 ly6 keeps stalling out as soon as i turn it on When i turn in on its almost if i where to turn it of immediately after redid my fuel regulator my fuel pump
everythjng else checks out all my spark plugs wires check out and injectors in my scanner it shows that my throttle body is loosing connection but I checked the tps and it’s good I need help
everythjng else checks out all my spark plugs wires check out and injectors in my scanner it shows that my throttle body is loosing connection but I checked the tps and it’s good I need help