First step: unplug the O2 sensor and see if it runs better. 

Check your dizzy and rotor button. 

It could also be that the plugs are shot. 

Chris.

Wysłane z iPhone'a

Dnia Mar 17, 2014 o godz. 17:02 Kk Al <kkalnsf@GMAIL.COM> napisał(a):

> Hello all
> We are in the middle of our vacation traveling in our 87 Synco. The van has
> been running very well untill all of a sudden it started missing on the
> freeway. We pulled over and did a visual inspection. Everything looks ok. I
> pulled the plugs and found theky are all fouled.
> Once we started bwck up everything worked for a few minutes and the missing
> started again.
> We have noticed the problem goes away if we keep the accelorator on the
> floor . If also goes away for a few seconds  if we let off the accelorator
> and reapply
> The problem arises when we how the accelorator steady.
> 
> Any help is appreciated. I'll be checking email frequenly