Firstclassdumbo wrote: ↑
Fri Sep 22, 2017 12:57 pm
A) I pinned the throttle wide open to get ~2500 rpms and tickled the wiper seductively in both directions. Tickling it to the left resulted in more stumbling. Tickling it to the right
just over 1/4" made the engine rpms skyrocket
, like it should do when snapping the throttle wide open. Oxs still disconnected.
B) Drive that Lexus into a lake and drink a glass of scotch while watching it gurgle it's last breaths.
a) THIS IS YOUR CLUE!
So, I shall ignore your report that the engine wouldn't even start when you leaned the cog thus throwing us all off the trail and sending you into the Blow Up The Double Relay Thicket.
If the rpms skyrocketed, that means it was HAPPY to have less fuel at the stumble rpm point. You need to read my AFM article .. .. .. :
.. .. .. but ignore most of what it says. You must be bold, creative and sensible. Make initial setting marks
on the wiper and the cog. Before starting engine, get the silicone blob off the wiper screw. That blob is just to let the Feds know that you committed a felony in tampering with your emissions related components.
What you need to do is gently, incrementially, get to the stumble point, note once again that the engine may rev up as you lean it out, then YOU reduce the engine speed with the throttle lever as you keep the wiper where it is happiest.
YOU must make the AFM provide a leaner mixture at high rpm, without affecting the mixture so much at idle. It is a matrix between the wiper adjustment and the spring adjustment. Personally, I think you may find that you need to move the wiper almost a tooth lean (it has its own teeth) and then maybe relax the spring to help recover your idle.
Where are you located?
b) I drove the Lexus into the lake, like you suggested, but now I am sad for some reason. Should I down another bottle of Scotch?
BobD - 1978 Bus . . . . . . . . . . .110,350 miles
Chloe - 1970 bus . . . . . . . . . . . 206,775 miles
Naranja - 1977 Westfalia . . . . 73,930 miles
Pluck - 1973 Squareback . . . . . 55,478 miles
Alexus - 1991 Lexus LS400 . . . 64,428 miles