Dies when put in gear

[1990GMCSIERRA]

im still saying tranny

 

[97c1500]

since the IAC has been replaced i would say change TCC solenoid

 

[jaemitch]

i had that problem before it was my fuel pump it would run fine at idle as soon as i put it in gear it would die.

 

[93zierra]

To update he had his fuel pressure checked and it was running 9psi. He's gonna change the pump

 

[jaemitch]

good u got it figured out!!

 

[93zierra]

Yeah thanks for the help guys