89 B2 will not run under a loadHELP!!!!

[Rangeron38]

I am at end. My 89 B2 will not run under a load. Gutless, Back fires You get the pic. I have replaced the map sensor, any many other parts from the intake Any Help is good.

 

[CopyKat]

Set the timing?

 

[BlackBII]

Checked the Fuel Pressure?

Firing on all cylinders?

Compression?

 

[kemicalburns]

also make sure the cat converter isnt plugged.

 

[WhiteBroncoII2WD]

I am at end. My 89 B2 will not run under a load. Gutless, Back fires You get the pic. I have replaced the map sensor, any many other parts from the intake Any Help is good.

what codes are you getting when you pull?