Hesitatiom or stumble when cold?

[pipelinewelder20]

O.k guys my 95 ecsb with a 5.7 and 63,000 miles is acting a little funny. When first started up, until it reaches operating temperature when you stomp on the throttle it hesistate's or almost act's like it is getting to much fuel. here is a list of ac-delco parts i have put on it in the last 2500 miles, and also this truck is not a daily driver and run's great when warm

fuel pump
fuel filter
distributor
rotor
coil
plugs and wires
egr valve and solonoid
air filter
new vacuum lines
also rebuilt the throttle body

 

[DRAGGIN95]

I would suggest that you get a hold of a obd1 live data scanner and look at the 02 sensor data, and also make sure that the TPS is working correctly to start with.

 

[pipelinewelder20]

Ok i will look into that i also havent got any code's or light's on the dash yet

 

[DRAGGIN95]

You probably wouldn't!

 

[pipelinewelder20]

Do yoy know of a way to test the t.p.s.

 

[93 K1500]

Hows your oil look? Have you check for vac leaks?

 

[DRAGGIN95]

Do yoy know of a way to test the t.p.s.

I believe it's possible to check it with an ohm meter, but I have alway's used a live data scanner

 

[pipelinewelder20]

Oil look's good and i just replaced all the vacuum hoses and checked for leak's

 

[pipelinewelder20]

o.k guy's i dont have access to a live data scanner but i did change out the t.p.s. and the i.a.c. and it is still acting up, did it tonight while warm pinched it then if fell on it's face and than i noticed a strong gassy smell comin from the exhaust almost act like it's flooding out