help!! truck wont accelerate past 1500 rpm

[brandonsblack]

my truck started actin up so i put a new lift pump on, an new throttle position sensor, and now a new injection pump and still actin up. it does fine and will accelerate above 1500 rpm untill it shifts into overdrive and then i have nothing above 1500 rpm. any ideas on what it could be its getting really old.

 

[Diesel Freak]

Codes?

is there a 0500?

Does the spedo work?

 

[brandonsblack]

no codes everything works just wont accelerate

 

[LAmiller]

check for loose pins in the inj. pump connector and the connector that plugs into the ecm.

Lavon

 

[RacinDuallie]

Did you do the TPS reset proceedure?

 

[brandonsblack]

i just put a new tps on its good