It does not take long to swap injectors if you leave the injectors and
fuel distribution manifold together and simply loosen the delivery and
return lines. Is possible that a bad injector causes a fuel delivery
issue which shows up under a specific load.

2010/1/8, Danny C. <bruiserbabie@yahoo.com>:
> So I have try-ed a few things. I changed the throttle body to one I know is
> good, I changed the air flow meter again, I changed the throttle position
> switch's, I changed the ECU (computer), I changed the little green idle
> stabilizer box, I took the intake boot off and checked it for cracks even
> tho its new and no cracks, the motor was just rebuilt 6000 miles ago and all
> the vacuum line and all other rubber hose's are new. the engine is so clean
> you could eat off of it. This is killing me. It seems to be getting worse, I
> guess thats a good thing being I will probably take it to the shop Monday If
> I cant figure it out this weekend. Anyone have any other ideas? It feels
> like an old VW bug I had with duel carbs that were way out of sync. Thats
> the only way to describe it, like there is a major flat spot when you take
> off, once you rev it up it goes good, tell the next time you stop or let off
> the throttle. Thanks
>
>
> Danny C.
> '84 Westy (Vanny)
> '90 Jeep Cherokee 4x4
>
>
> --- On Thu, 1/7/10, Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
> wrote:
>
>
> From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
> Subject: Re: 1.9 engine HELP!!!
> To: vanagon@GERRY.VANAGON.COM
> Date: Thursday, January 7, 2010, 1:26 PM
>
>
> my 'snap thoughts' go to Air Intake Boot ( make sure it's not split or
> cracked, doesn't happen too often, but it does happen )
> and Temp Sensor II,
> and always check throttle switch function. I find those 'off' at idle all
> the time.
>
> and generally, to make any waterboxer run right again, I end up checking all
> the specs - oxygen sensor output, idle switch,
> temp sensor, ignition timing and so on.  Occasionally I find truly worn
> parts, like ancient or leaking spark plug wires. Mostly I find things out of
> spec, and the one part I find actually 'worn out' and not working is oxygen
> sensors.
>
> and your symptom does sound  like an AFM, but your tried a known good one,
> which leads my mind to the air intake boot.
> And intake air leaks, mostly those don't happen much, but I had one vanagon
> that I found about 8 tiny intake air leaks on, which all added up to not
> responding well to the throttle.
> Muffler, cat, fuel filter, fuel pump, and the fuel Itself all need to be
> considered of course.
> For sure your symptom sounds like the electronics are not reading the air
> flow correctly. Check that boot carefully. You can get a situation where
> under or over a certain torque level a split is pushed closed by engine
> movement, and it only acts up at 'just that one spot.' I'd start there.
> good luck !
> Scott
> www.turbovans.com
>
> ----- Original Message -----
> From: "Danny C." <bruiserbabie@YAHOO.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Wednesday, January 06, 2010 6:47 PM
> Subject: 1.9 engine HELP!!!
>
>
> · So I have been driving my 1984 westy Automatic vanagon and have been
> experiencing some small issues. This is what happens- There are 2 different
> ways this happens. The first- When driving the van on the freeway going
> around 60mph on flat surface with the pedal pushed down about 30% it starts
> to cut out very slightly. It does not stall the engine but there is a slight
> miss like it is running out of fuel. Now here is the tricky part, if I press
> the pedal down just a hair, say to 35% it goes away, or if I let off the
> pedal just a hair to 25% it goes away. Now it does not always do it but it
> does seem to be getting worse. (Happening more often) Now for the second
> problem- So if I stop at a stop sign or stop light and take off if I have my
> pedal at the 30% point it does the same thing, it feels like it is bogging
> down, now if I start off with the pedal at 35% or more it does not happen or
> if I press the pedal 25% or less it wont happen. Now I
> have a friend with a great running 1.9 vanagon and swapped Air flow meters
> and the problem was still there, so Im sure its not the AFM. Let me know if
> any of you have experienced this problem and what steps you took to resolve
> the problem.
> Thanks Danny
>
> Danny C.
> '84 Westy (Vanny)
> '90 Jeep Cherokee 4x4
>
>
>
>
>

-- 
Chris S.
Disclaimer: "Death and serious injury may occur"