ECM upgrade (1227730) for stock 2.8 (Page 53/107)
JazzMan FEB 18, 06:25 PM

quote
Originally posted by Darth Fiero:


I'm just going on what the service manual says about its function. You may very well be correct that this tube has to be present and hooked up in order for the OE Fiero 2.8 throttle body and IAC system to function; if so, I stand corrected on my previous statement. I haven't researched the inner workings of the stock 2.8 to the extent of knowing everything possible about this particular design. But assuming what you say is true, and someone wanted to use a later design lower intake manifold, they would also have to use the later style throttle body so the IAC would continue to function.




Yep, gotta have air flow to affect the idle. The IAC air passage in the manifold runs full length, and there are holes in each port to allow the air to enter the head. It's probably easiest to look at it as primarily a cold start fuel delivery system that they tacked the IAC function onto. The constant air flow also prevents fuel from lingering after the cold start injector is done.

JazzMan
bnevets27 MAR 13, 05:28 PM
I was wondering if anybody has fitted the external crank sensor to the stock 2.8? Or know if the one by TEC will fit?

Here is a thread about it at 60*V :
http://60degreev6.com/forum/showthread.php?t=38980

If the plate just needs to be resized or the key moved I could easily do that, as long as its just metal.

Pics of the external crank sensor from TEC:
http://wot-tech.com/shop/in...iewProd&productId=42

I bought the ECM and coil pack already and was excited to put the distributor less ignition in and then re-read and realized I couldn't. If I can get this fitted to the balancer, thats the last thing I'm missing correct? (minus the knock sensor and a burned chip)

If its just a plate with notches in the right place, and just a normal senor to pick up the position, I might be able to make it. Provided with the info on what degree the notches have to be at and what sensor to use.

[This message has been edited by bnevets27 (edited 03-13-2008).]

Pyrthian MAR 14, 07:31 AM
yes - that will work just fine.
if you figure out how to mount - there is another guy looking to do the exact same thing.
I will post a link to his thread, if I find it.
rjblaze MAR 14, 10:57 PM
I think this is the thread you are talking about....no revisions yet and still really no answers.

http://www.fiero.nl/forum/Forum2/HTML/089178.html
Madess MAR 21, 09:28 AM
need a clarification
D5 tan / blk est bypass move to BC7 must be disconnected to set base timing, see note1 below

what exactly does this mean?


also just wondering if anyones knows the colors of the wires in the c203 adapter that correspond to the terminals I am supposed to be using?
Pyrthian MAR 21, 09:50 AM

quote
Originally posted by Madess:
need a clarification
D5 tan / blk est bypass move to BC7 must be disconnected to set base timing, see note1 below

what exactly does this mean?


also just wondering if anyones knows the colors of the wires in the c203 adapter that correspond to the terminals I am supposed to be using?



the original Fiero ECM - the ALDL connector allows you to bypass the EST - the 7730 does not. so, instead - you break the connection between the ECM and the igntion module on the tan EST wire. easy way to do this instead of a connector, just mount a switch somewhere. hit the toggle to set the timing. or maybe a 1/8" mini jack, where inserting or removing the jack opens or closes (depending on taste) the EST line.
Madess MAR 21, 11:09 AM

quote
Originally posted by Pyrthian:


the original Fiero ECM - the ALDL connector allows you to bypass the EST - the 7730 does not. so, instead - you break the connection between the ECM and the igntion module on the tan EST wire. easy way to do this instead of a connector, just mount a switch somewhere. hit the toggle to set the timing. or maybe a 1/8" mini jack, where inserting or removing the jack opens or closes (depending on taste) the EST line.



so if the timing is already set right on my car, just hook everything up and go, with a switch, then if for some reason I want to play with the timing, just turn the switch off, time it, and turn it back on... I get it.
Darth Fiero MAR 21, 01:11 PM
If you are going to put a switch or other, non-weather sealed connector on the EST bypass wire, make sure you do it inside the car. Otherwise corrosion could attack a non-weather sealed connection which could cause problems in the long term.
3.6lvvt6spdgt MAR 21, 10:02 PM
how do i install my ostrich onto my 7730 v6 memcal?
here is a picture of the components that i have am i missing somthing? do i need to remove any thing and do i need to soider anything? please help

[This message has been edited by 3.6lvvt6spdgt (edited 03-21-2008).]

Hudini MAR 21, 10:18 PM
The Ostrich takes the place of the prom. The prom is the brown chip on the right side of the memcal in the picture. The rectangular black piece with the pins on bottom and holes on top (middle right of picture) is your quick connector used when you need to connect and disconnect your prom several times. Keeps from tearing up the memcal's prom socket. So, remove prom (note the little U on the right end), insert black rectangle chip adapter with U on the right (if it has one), then insert Ostrich connector (bottom right in picture) into quick connector with U on the right. The Ostrich is now doing the job of the prom. The other chips on the left of the memcal in the picture are the limp home mode stuff. Those stay put.

Anyone? Did I miss something?

[This message has been edited by Hudini (edited 03-21-2008).]