Can you make TBI squirt fuel like carb

[joegreen]

so is it possible to set a parameter that when certain tps value the injectors squirt?

[RobertISaar]

which ECM are we talking about? a P4/P6 can have code added to it pretty easily, a C3 cannot.

would just need to watch TPS before cranking, if it exceeds xx%, trigger an async burst of xx mSec.

[1project2many]

What made carb engines start so fast when warm was fuel vapors in the intake, often from a small leak in the carb. An excess of fuel would enter the cylinder immediately on cranking but without any oil getting a chance to splash on the cylinder bores it can negatively affect ring life. Also, if the bearing clearances are high there's a chance the oil cushion around the crank has drained away as well.. You can make TBI start fairly quickly without any priming shot of fuel by reducing the number of pulses before fuel and spark begin. If your engine's in great shape there's no worry but with a high mileage engine and the thinner oils used today it's not a bad idea to delay the start to get some oil moving first.

clear flood should never be needed on a healthy engine anyway

Plenty of situations I can think of that could cause plugs to get wet from fuel. Most common in our fleet is condensation in van engine compartment. I can often play with clear flood to get a few plugs to fire and warm up so vehicle will start. In MT it was extremely cold temperatures. With clear flood and some ether it was sometimes possible to get plugs to fire just enough to light off the gasoline.

OTOH many Chrysler products have no clear flood mode and require some type extra work to get wet plugs dried out. Dodge / Chrysler PFI V8's were known for random / multiple misfire codes on wet days and drivers would shut vehicle off while running rough only to find they wouldn't restart. Much harder to dry those plugs out.

[joegreen]

Im sorry its a 1227747. How would you reduce pulses before fuel and spark start?

[1BadAction]

My TBI lights off on the first hit... It starts just as fast, if not faster than the LS3 in my 2013 Camaro.

[blue68deville]

The Caddy and my 93 both fire off pretty fast.
I had a retrofit tbi on a 454 that always took a few revolutions to fire. Never figured out why. It was using the same starter bin as I used for the caddy, so????

[joegreen]

From my research the 1227747 is a c3 ecu. So you are saying it would be hard to make it squirt fuel but not impossible? What does c3, p4 p6 mean? Thanks for everyones fast replys.