So after endlessly reading every post on surging problems and replacing

-cap

-rotor

-timing belts/ tensioners

-o2 sensor

-Coolant temp sensor and connector

-idle air control

-air filter/ oil filter/ fuel filter

 

and finding no problems with fuel pressure or injectors I have finally found my problem.

 

It was the exhaust recirculation valve above what I believe is cylinder 1. I pulled off the two bolts by the vacuum valve, slipped a flat piece of tin can in between the valve and the intake port, tightened it down and viola no more huge cut out.

 

It used to be so bad that every morning at the first stop sign I would have to make sure no cars were in sight before I'd pull out. It always sounded like cylinder 1 was missing to me. I'd let off the gas and the hesitation would decline, or if I stomped on the gas the boost would eventually overcome it after about 2-3 seconds.

 

I can't believe it was that simple.

 

86 gl-10 turbowagon

170,000

I had surging problems when I was trying to resurrect the Draggin' Wagon the first time(yeah, I'm going to have to do it again. ). It wound up being the fuel pump. Well I'm glad that you resolved your problem. Very good to hear. Take it easy.

 

Patrick