DFI and ECM Discuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.

Recommendation on a aftermarket ECU

Thread Tools
 
Search this Thread
 
Old 06-03-2009, 09:42 PM
  #1  
Moderator/TGO Supporter

Thread Starter
iTrader: (5)
 
AaronIROCZ's Avatar
 
Join Date: Feb 2001
Location: Tomball Texas
Posts: 1,415
Likes: 0
Received 6 Likes on 2 Posts
Recommendation on a aftermarket ECU

I am looking to upgrade swap out my factory ecm for an aftermarket ecu. I have some experience with the Holley commander 950 since that is what my brother used in his Monty Carlo SS. I do plan on driving this on the interstate so I would need to keep the lockup functional and also cruse control, and would like to be able to use my factory wiring either repining it or using an adaptor.

I am having alot of trouble of tuning my stock ecm with either the ecm not responding, the auto prom not responding or able to emulate, and or tuner pro rt completely locking up on several different laptops and different auto prom units. I wasted 1 year trying to figure this out and I am tired of messing with this. My experience with the Holley 950 is it was very easy to tune, almost to easy. It told you with a red box on which cell of the table it was using and if you needed to change anything you just go to that cell and edit it. Are other brands this easy to tune?? Does any other brand have TCC clutch control and the ability to use the factory wiring????

Last edited by AaronIROCZ; 06-03-2009 at 09:49 PM.
Old 06-04-2009, 12:04 AM
  #2  
Member

 
efi-diy's Avatar
 
Join Date: Dec 2007
Posts: 110
Likes: 0
Received 1 Like on 1 Post
Re: Recommendation on a aftermarket ECU

If your using a '165 ECM you may be interested in https://www.thirdgen.org/forums/dfi-...asquirtii.html

It allow MS to plug directly into the factory harness and will handle TCC based on engine rpm/MAP.

Also if you can buy a pre-built & tested Megasquirt from DIYAutotune.
Old 06-04-2009, 10:19 PM
  #3  
Moderator/TGO Supporter

Thread Starter
iTrader: (5)
 
AaronIROCZ's Avatar
 
Join Date: Feb 2001
Location: Tomball Texas
Posts: 1,415
Likes: 0
Received 6 Likes on 2 Posts
Re: Recommendation on a aftermarket ECU

I looked and I can't make sense of exactly what I would be looking for. I plan on using the factory harness, from the sounds of it the adapter is not out yet. What would all the parts for the megasquirt II would I need?
Old 06-04-2009, 11:51 PM
  #4  
Member

 
efi-diy's Avatar
 
Join Date: Dec 2007
Posts: 110
Likes: 0
Received 1 Like on 1 Post
Re: Recommendation on a aftermarket ECU

Originally Posted by AaronIROCZ
I looked and I can't make sense of exactly what I would be looking for. I plan on using the factory harness, from the sounds of it the adapter is not out yet. What would all the parts for the megasquirt II would I need?
TPI '165 adapter

http://www.diyautotune.com/catalog/m...363fbc7a275117

In addition to the bare board there are about $20 worth of parts to be bought from Digikey. All the parts and assembly instructions are on the web page with the adapter board.

Plus

Not assembled MS2 kit - specify NO CASE

http://www.diyautotune.com/catalog/m...363fbc7a275117

OR

Fully assembled MS2

http://www.diyautotune.com/catalog/m...363fbc7a275117

If you order a pre-built unit specify "NO CASE" as you would use the stock GM ECM case.

Plus a junkyard '747/746 ECM << this is for the mating harness connector and the case. After the connector is removed from the GM board the rest of the GM electronics ends up in the round file.
Old 06-05-2009, 02:49 AM
  #5  
Banned

 
WASyL's Avatar
 
Join Date: Jan 2008
Location: Europe->Poland->Warsaw
Posts: 547
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 Pontiac Firebird
Engine: 305 LT1 intake&heads
Transmission: TH700r4
Axle/Gears: 3.73 10bolt GM
Re: Recommendation on a aftermarket ECU

the problem is that i have ordered this adapter over 2 weeks ago, when i recieved it, it was TBI one, i was promiced to recieve proper one ASAP but it is still not here and i'm wondering if it even exist!

regards
Old 06-05-2009, 02:36 PM
  #6  
Banned

 
WASyL's Avatar
 
Join Date: Jan 2008
Location: Europe->Poland->Warsaw
Posts: 547
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 Pontiac Firebird
Engine: 305 LT1 intake&heads
Transmission: TH700r4
Axle/Gears: 3.73 10bolt GM
Re: Recommendation on a aftermarket ECU

Justin from DIYautotune just contacted me and confirmed that it was sent on 28th of May, now i know it is not their fault and they done their work best thay could and gave all support
so You can order MSII + adapter as easyest and quickest way to fine tune Your car

regards

BTW now i need to go to delivery company and customs and find a guy taht still keeps my adapter and kill him
Old 06-05-2009, 02:44 PM
  #7  
Supreme Member

iTrader: (27)
 
robertfrank's Avatar
 
Join Date: Apr 2004
Location: Salt Lake City, Utah
Posts: 2,949
Received 57 Likes on 40 Posts
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: Recommendation on a aftermarket ECU

EBL with the port mod hands down. plugs directly into your stock harness. Ask RBob.
Old 06-06-2009, 11:04 AM
  #8  
Supreme Member

 
Dominic Sorresso's Avatar
 
Join Date: Dec 2001
Location: Bartlett, IL
Posts: 1,994
Received 11 Likes on 10 Posts
Car: 92 ZR-1
Engine: LT-5
Transmission: ZF-6
Axle/Gears: SuperDana 44 4.10
Re: Recommendation on a aftermarket ECU

Originally Posted by robertfrank
EBL with the port mod hands down. plugs directly into your stock harness. Ask RBob.


Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
hectre13
Car Audio
26
03-03-2022 05:38 PM
Cam-aro
Camaros Wanted
2
11-12-2015 03:35 PM



Quick Reply: Recommendation on a aftermarket ECU



All times are GMT -5. The time now is 01:14 AM.