Missfiring + Underpowered

[kid101skater]

Have a missfire as well as very underpowered..

Replaced Camshaft positioning sensor, Mass Air flow sensor, Fuel Pump, Spark plugs and wires, Fuel Filter, Ignition Coil.

I have no check engine light.. But its a *****..

And exaust is sputtering.

 

[Gadget X]

Have you checked your injectors? I had a similar problem a while back, and the injectors being clogged was part of the problem! Also check your throttle position sensor and your EGR system.

 

[kid101skater]

Well the TPS would set a code, its electrical, And no signs of a vacume leak, egr seems fine... i think tomorrow were taking off the header and redoing the valves

 

[Gadget X]

Not necessarily. It's easy to check, as it is basically just a potentiometer, and the computer wouldn't know if it was just reading wrong. Also, seriously consider the injectors before you tear into the heads.

 

[kid101skater]

Well i also ran cleaner through it... Smoked like a Bi**h and yeah... i just need this working. Any other suggestions?