Diagnosis steps & tools?

[Terrill Yuhas]

On Mon, 8 Feb 1999 Tedscj at aol.com wrote:

> If you have a manual trans. prom, you might try one from an auto. trans. (even
> if your car is a manual.)  I've read that this is a common fix for idle
> problems on the 2.8 and 3.1 litre engines.
> I have the EFI system from a Berreta, 6 cyl., manual trans. on my car.  And I
> had similar problems, plus hesitation off idle, until I switched to the prom
> from an '88 v6 auto. Grand Prix from a junkyard.  Now all my problems have
> been cured and the car idles and accelerates smoothly.

Mine has an auto trans.  I had thought about trying out other proms.  Is
it basically that if the donor has the same computer, same engine, and is
either MAF or not (to match my car), then it's a decent candidate? 

Terrill