Re: TOY: 22RE conversion help

[Jeff Moskovitz <jeff_moskovitz@xxxxxxxxxxxxx>]

A couple of thoughts, Michael.

First, have you adjusted the TPS? "Hard to start when cold" and "no power 
through the RPMs" sound a misadjusted TPS to me. If you haven't set the 
TPS, check out Roger Brown's excellent how-to write up:

http://reality.sgi.com/rogerb/4x4/CheapTricks/TPS/index.html

Second, you can adjust idle speed via the large set screw on the top left 
side of the throttle body. No need to go crazy, either, as 1/4 
adjustments should have a noticeable effect.

Next, there are a few sort of goofy sub-systems on the 22RE that can 
cause problems, depending on the year of the engine. I think the most 
significant of these second level culprits is the Air Control Valve (NOT 
to be confused with the Air Flow Meter, or AFM). The air control valve is 
sits under the lower intake manifold, and, as the name suggests, controls 
additional air flow into the engine -- sort of like crude acceleration 
pump. It is a very kludgy electromechanical device. If you got a post 
'89(?) 22RE, then you don't have this piece. However, if you have a 22RE 
from the mid 80's, then you do, and it could cause the problems you're 
describing. The factory service manual explains how to adjust it.

Finally, both idle mixture and overall rich/lean performance can be 
adjusted via the AFM. Before heading down that road, however, I'd make 
sure that the TPS is properly adjusted and the air control valve is 
operating properly.

My .02 cents,

Jeff


On 9/6/00 8:10 AM, Michael Fox said:

>Hey all,
>
>I have finally gotten all of the error codes to clear from the computer 
>from my 22R to 22RE swap. So I have a somewhat running truck now. It seems 
>to idle very rough when the timing is set at 0 degrees, but if I bump it 
>up to 7 degrees is idles smoother but the engine RPM's go up too. I do 
>have an LC Engineering EFI Pro cam, but I called them and they said that 
>it should be set at the factory 0 degrees. 
>
>Also, it is very hard to start when it is cold. The fuel pump seems to be 
>working correctly and I havent investigated whether the cold start 
>injector is functioning properly. I will do this next.
>
>Also, it doesnt have alot of power through the RPM's (no jokes please).
>
> I guess I am just looking for any other paths that I should be pursuing.
>
>Thanks.