00 S10 2.2 won't start

[trox]

Tried the Lucas injector cleaner on a 1/4 tank of gas, drove 20 miles, didn't change anything. It still starts good with the pedal to the metal.

[welakafl]

I have the same truck 2000 2.2 s10 with the same problem, It starts fine cold but if it sit for maybe 20 min after its warm you have to crank it for a time before it starts, put foot to floor while cranking it fires up, My truck is lagging a bit power wise, Fuel press at rail at idle is 35lbs but it goes up to 40 when you rev it up a bit, around 40 psi not running, I did not see or smell gas at the reg vac hose, The pump got real noisy the other day when it was VERY low on fuel, banged on bottom of tank and it wasent so loud, filled up with gas now i dont here it, I replaced filter, no change, I had the head off the truck for head gasket and burnt valve, I bought it that way, I think I will take a look at the plugs next,(there new) to see if i can find a wet one, If i dont turn the key and let the line prime it wont start right away, if you prime it with the key it fires up Quick, I think it has to be the pump or injector or both, I will let you no if i get anyware with it, I also tried lucas and it did nothing.

[chevy00s10]

I to have the same truck also. Just so you know holding the throttle wide open is a flood over ride which means your truck is flooded when warm caused by a bad fuel injector. And I am having a problem as well maybe you guys can help. My ecm is throwing a code for camshaft positioning sensor and I do not have one at all looked all over the pass side completey. Does anyone know if some of the 2.2 were made with out a cam sensor in them?

[VDub_Gibson843]

my best guess would be the ignition control sensor... if cranks when you give it plenty of gas, and continues to run w/o any problems we know that its not a spark or fuel problem. that would leave something like, sensors or relays to look at. i would start with the ignition control sensor and if nothing changes, try the throttle positioning sensor. good luck