Ok I'm Old But Learning

[Deleted]

 

My Pickup wouldn't start after couple days of setting. Took it to the Shop, they said it was a Sensor, replaced it. Let it set couple days wouldn't start. They replaced a broke Spring in the Fuel Injection. Cleaned it all up.

Ok I knew Fuel Injection like on my wifes Car, Fuel goes to each cylinder. I really thought I had Carburetor on my Pickup until a Friend pointed out it was Fuel Injected. Ok cool.

Well let the Pickup set couple days it wouldn't start. Thought well take it back to the shop.

My Son was here, I was telling him about it. Dad are you giving it Gas when your trying to start it? Well some but it has always started in the past. He says Dad you basically have a New System, if you give it Gas you will flood it with Fuel Injection. Don't touch the Gas!

Well today it had set 3 days. I go out, stand outside the Pickup so I wouldn't be tempted to give it any Gas. Cranked it couple times started right up.

Ok I'm learning and Thank You Lord I don't have to take it to the shop.

Rockpile

[hermitjohn]

Gas pedal on fuelie car just opens throttle plate that allows more air flowing into the air intake manifold. Fuel is injected directly into the cylinders. It doesnt by itself cause more gas to enter the cylinders. The fuel injection computer knows from sensors if car engine is cold and in process of start up so automagically adds more fuel for richer mixture. Or driving down road, when you open throttle plate, it knows you want more engine speed and injects more fuel. But its also aware of amount of air flowing into the air intake.   www.fuelpumpu.com/news-sensors-that-affect-fuel-delivery-part-2.aspx


On a carburetor car, pushing the gas pedal makes the accelerator pump (part of carburetor) squirt fuel down the throat of carb, into the intake manifold. Several squirts and you have a rich mixture that helps start a cold engine. Think of it as being like pushing the plastic pimple on lawn mower carb that gives a richer mix to start the engine. Though unlike modern EPA lawn mower carbs, all automotive carbs I've seen came from factory with a choke, automatic or manually controlled. Some removed them for racing purposes, supposedly in attempt to get more air drawn down through carb at high speeds.