350 TBI throttle hesitation

[Strongheart2012]

I have a 95 hoe 4x4 with the 350 TBI and on a quick throttle push it has like a 1-2 hesitation before it takes off when the engine is warm and the check engine light comes on.

I've already changed the cleaned the thriller body, changed fuel filter, spark plugs/wires. The injectors look like the are spraying good. I am getting ready to change out the coolant sensor, map, and throttle position sensor. Really don't want to replace the fuel pump if I don't have too.

Anyone have any other ideas what the problem could be?

 

[bigfootchiro]

I have a 95 hoe 4x4 with the 350 TBI and on a quick throttle push it has like a 1-2 hesitation before it takes off when the engine is warm and the check engine light comes on.

I've already changed the cleaned the thriller body, changed fuel filter, spark plugs/wires. The injectors look like the are spraying good. I am getting ready to change out the coolant sensor, map, and throttle position sensor. Really don't want to replace the fuel pump if I don't have too.

Anyone have any other ideas what the problem could be?

Sounds like it’s time to LS swap it!

Hahaha, but in all seriousness... check/adjust timing, cap and rotor first, then check for vacuum leaks.

 

[drakon543]

i had that problem on a 94 suburban but i can't remember what sensor i changed. i just remember its on the top of the intake somewhere sorry.

 

[Strongheart2012]

i had that problem on a 94 suburban but i can't remember what sensor i changed. i just remember its on the top of the intake somewhere sorry.

I just changed the tps, coolant, and map sensor on top and so far so good. Time will tell

 

[drakon543]

ya my old suburban sounded pretty nasty in the am when it was cold out lol. sounded like it had a nice cam in it until it warmed up.

 

[east302]

What code are you getting?


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