Hi,
 I am new to this site,it looks like you have a lot of good advice for
each other.
I need some,
 My vanagon surges when excellerating or at a steady speed,some times it
has plenty of power and other times it feels like I have a fourty horse
for a engine.
 I have done my homework and replaced the air flow sesnor,ox sensor,temp
sensor2,checked all grounds and cleaned them.I even intsalled that
expensive wiring harness between the afs and the computer to stabilize
the voltage,it worked for a week then went back to the irratic
performance like before.
  Sorry I am running on ,but I am really stuck this time.
I paid 500 for it and now I know why,all this after I replaced the rear
main seal.
 At least I did everything myself it would have cost me alot more.
Could  injector do this ? I am having doubts.
How bout the computer? Maybe theres to much spam in it.
This is my first waterboxer,I like the ride even loaded with
construction tools

                   Please Help
                                      Thanks,  Kirk Persing