ECM upgrade (1227730) for stock 2.8 (Page 104/107)
unboundmo OCT 13, 11:38 PM

quote
Originally posted by JazzMan:

The reluctor wheel is the part the crank sensor senses. The crank sensor is basically a metal detector, so something that has notches in it needs to be on the crank. The sensor sees the notches and tells the ECM. Typically one notch is different than the others, that way the ECM knows where TDC is on the crank.

JazzMan




Since I'm running the 3.4L crank and block.. The crank should already have the notches?... And as I'm reading, the block will also have all the places for these sensors.. I found the knock sensor location but haven't had time to look for the others.
unboundmo OCT 13, 11:52 PM

quote
Originally posted by Darth Fiero:
The cam sensor is only used in SFI applications/computers. The 7730 is NOT SFI; but rather it is batch fire. So the cam sensor will not be used with the 7730 ECM at all.



Found one of my answers... I'm assuming the same goes for the 16198262 ECM? It's timing is all through the crank sensor? Is there any prep to the engine like, putting it at top dead center? How does the computer know?

[This message has been edited by unboundmo (edited 10-13-2013).]

unboundmo OCT 14, 02:08 AM

quote
Originally posted by Gwain:

For those of you who have not received your EGR plate yet (you'll know that you're one if you haven't received it):

I did not quite anticipate the demand, and did not run enough to cover all interested parties initially!

We're doing another run this week to cover the rest of you, and put some on the shelf for later. I tried to ship in the order I received addresses. Sorry for the delays.




What are the chances of getting one of those plates today... It was only posted back in 2008...

I'm eager to hear or read what has come up with this whole swapping the systems... If there are any improvements or things we learned along the way....;from page 12 to the 26th
hiwil88formula OCT 15, 10:33 AM
For the EGR adapter plate you might be able to order one from here: http://www.gafiero.org/shop.shtml

The crank position sensor goes in the trunk side of the block around the middle of the block, the knock sensor just screws into the block on one of the coolant ports. The sensor tells the computer what position the crank is in order to fire the right cylinder. You will only need the block mounted CPS.

As far as the coil packs go, the placement is up to you. I placed mine where the factory cruise unit goes and have not had any heat issues with it. I am running headers with no heat wrap either. I also added digital cruise and moved that unit to the firewall around the throttle body.

Hope this helps.

Hywel

[This message has been edited by hiwil88formula (edited 10-15-2013).]

unboundmo OCT 24, 02:25 PM
Thanks for the insight... I guess I have everything then.

''''' one more question??... Do I have to set the block at top dead center to get the computer responding correctly for the first start up or does the crank sensor tell the computer what cylinder is firing? How does it know? Is it a different notch that the crank has for TDC? I haven't really looked at it when I had it apart doing the build originally.

------ does anyone have any regrets? Things aren't as planned kind of thing.... All is running great? This is an old thread.... Looking for some feed back now that it has been a couple years.
hiwil88formula OCT 24, 03:58 PM
The computer knows what posisition the engine is in, so no it does not have to be on TDC #1. I have been running mine for about 9 months now and have no regrets. I am working on fine tuning with darth fiero and we are very close to having it done. I'm just glad i dont have to really worry about the icm failing when im on a long road trip. One feature I like is it told me when my fuel pump was going out. It threw a code for low voltage at the fuel pump and the next day mine was dead, luckily i was in my driveway when it died.
1MohrFiero NOV 15, 08:12 AM
I am planning to complete this upgrade soon and want to thank Ryan and everyone who has contributed to this thread. I plan to make the switch to DIS also and have a quick question as I gather parts. I have a Grooms rebuilt 3.4 that I got from Ed Parks used. Ed pointed out the features when I bought this engine and I think he pointed to a unused object on the side of the engine block and told me that was the crank sensor. Am I remembering right? Is that where it is located on the 3.4 PR? Or is this some other sensor?
TIA

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unboundmo DEC 12, 04:15 AM

quote
Originally posted by 1MohrFiero:

I am planning to complete this upgrade soon and want to thank Ryan and everyone who has contributed to this thread. I plan to make the switch to DIS also and have a quick question as I gather parts. I have a Grooms rebuilt 3.4 that I got from Ed Parks used. Ed pointed out the features when I bought this engine and I think he pointed to a unused object on the side of the engine block and told me that was the crank sensor. Am I remembering right? Is that where it is located on the 3.4 PR? Or is this some other sensor?
TIA





I believe That's the right location.. You should have a plug in it now. Alternator side lower center...
nightscar MAR 01, 10:57 AM
Hey guys's
I'm kind of interested in this upgrade for my 2.8 stock Fiero
she has 90k miles and I think this will be a benefit.

I have a few questions.
what is the best ECM to use?
Is there any good walk-throughs out there for this project? I'm pretty good at fixin pc's but circuit boards just confuse me lol
How hard and involved is this project?
Where do I buy the new ECM, thats already programmed?
Where do I buy the digital EGR valve?
I apologize if a lot of these questions where answered in this forum, I just kinda skimmed it.

Ty guys
Todd

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My 1985 Fiero GT

Knight MAR 23, 10:34 PM
I also am looking at an upgraded ECM. Will probably go 2.8 stock or 2.8 with dis conversion then 3.4 dis upgrade when my engine fails.
Is the 7730/7749 still the best choice?