Roger, the injectors solved the whole problem---That even the experts, did not even suggest!
I was so relieved when we put in the 2 throttle body injectors, and everything smoothed out, that was close to 10 years ago (I still remember the SICK-GUT FEELING I had when I thought I was letting my Pap down, I couldn't fix it, nor anyone else I could find). And even NOW, the salvage yard specials are still in there, and it runs like a dream!
Have you messed with the idle screw, or has anybody else?
On the T-Bird, it was a simple procedure, to get it trued back in, re-calibrated to the entire system. It was shown to me by a buddy. He said it was the EZ Field Expedient Method to get Zeroed back in, with the throttle related sensors.
Before I did the procedure, I found out that the T-Bird's BASE IDLE was supposed to be 400 RPM (a repair manual), that is, even though its sorta a "IMPORTANT FORMALITY", it would never be there again (400), except while performing the procedure. Hence, You just cannot make it idle that low, because the computer keeps stepping it back up.
The procedure was in part, getting to 400 RPM without the computer taking over and pushing it beyond that. Then letting the computer "Sense" where 400 was "AT"(momentarily), as you finish it out.
It worked for the T-Bird, I don't know if you have the same exact gadgets on yours, I will explain if you want to know.
As far as USED INJECTORS (inexpensive-salvage yard type) Can you get some to to try. Before you spend $$$ for new ones?
I just searched nearly for a month, for a rear-end for the T-Bird, It was GROWLING pretty bad, what can you expect, over 800,000 miles of laboring, everyday, for 25 years. W/ only "ON TIME" scheduled maintenance (Mainly Me)! Ring, Pinion and bearings were gonna be outrageous, and time consuming. Reckon it's got a Warranty Still?
Dad (Pap), Retired Air Force, PERFECTIONIST SUPERVISOR/ MAINTAINER OF ALL BIRDS, Theirs and HIS, Just Died 21 DEC 10. Mama just will not turn loose of the car, which they bought NEW, late '85 (still looks and runs very decent). They located a rear end for it 90 miles away via the Salvage Yard Computer System. I had to go get it, it was $150Wrecked in front, w/ less than 60,000 miles.10 years ago that woulda been $1000 or more, I guess they figger now, It's gotta cheaper (no big demand), or scrap it out for less than $10.
I'll shut up now
Friday, February 4th, 2011 AT 5:04 PM