DIY PROM Do It Yourself PROM chip burning help. No PROM begging. No PROMs for sale. No commercial exchange. Not a referral service.

Auxilliary 5V sensor ports on 7730 ECM?

Thread Tools
 
Search this Thread
 
Old Sep 22, 2017 | 08:31 PM
  #1  
ULTM8Z's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 4,655
Likes: 319
Auxilliary 5V sensor ports on 7730 ECM?

Are there any other pins on the 7730 ECM that can read a 5V sensor and then communicate out to Tunerpro?

And if so, in Tunerpro, how would one go about telling it to look at that particular pin and report it out?
Reply
Old Sep 22, 2017 | 09:31 PM
  #2  
Tuned Performance's Avatar
Sponsor
20 Year Member
Community Builder
Community Influencer
Community Favorite
iTrader: (95)
 
Joined: Dec 2004
Posts: 16,927
Likes: 1,016
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Auxilliary 5V sensor ports on 7730 ECM?

A input like d4 maybe ?
Reply
Old Sep 22, 2017 | 09:34 PM
  #3  
ULTM8Z's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 4,655
Likes: 319
Re: Auxilliary 5V sensor ports on 7730 ECM?

In fact, is there a schematic of the 7730 somewhere I can get hold of?
Reply
Old Sep 22, 2017 | 09:37 PM
  #4  
Tuned Performance's Avatar
Sponsor
20 Year Member
Community Builder
Community Influencer
Community Favorite
iTrader: (95)
 
Joined: Dec 2004
Posts: 16,927
Likes: 1,016
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Auxilliary 5V sensor ports on 7730 ECM?

Extratorq iirc use to have a post of the schematic.
http://www.vmeng.com/project-s/electrical/menu.html

Last edited by Tuned Performance; Sep 22, 2017 at 09:42 PM.
Reply
Old Sep 23, 2017 | 10:52 PM
  #5  
ULTM8Z's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 4,655
Likes: 319
Re: Auxilliary 5V sensor ports on 7730 ECM?

Hmmm.... doesn't appear to be giving me the I/O list of all the connector pins...


I found this...

https://pcmhacking.net/ludis/quadplugecm.html

Looks like B3 is a 2nd MAT sensor; or a 3rd MAT sensor at E14. Maybe I could tap off of one of those...

The question then is how do I get Tunerpro to see one of those pins?

Last edited by ULTM8Z; Sep 23, 2017 at 11:23 PM.
Reply
Old Sep 24, 2017 | 08:07 AM
  #6  
RBob's Avatar
Moderator
iTrader: (1)
 
Joined: Mar 2002
Posts: 18,432
Likes: 235
From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: Auxilliary 5V sensor ports on 7730 ECM?

Originally Posted by ULTM8Z
Hmmm.... doesn't appear to be giving me the I/O list of all the connector pins...
It does, sheet 8 shows the three harness connectors. Sheet 3 shows how the inputs are configured.

The question then is how do I get Tunerpro to see one of those pins?
Need to add firmware that will read the desired input and place it in a RAM location that can be spit out via the ALDL data stream. Then need to add that to TunerPro so that the proper value is displayed.

RBob.
Reply
Old Sep 24, 2017 | 09:34 AM
  #7  
ULTM8Z's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 4,655
Likes: 319
Re: Auxilliary 5V sensor ports on 7730 ECM?

Originally Posted by RBob
It does, sheet 8 shows the three harness connectors. Sheet 3 shows how the inputs are configured.



Need to add firmware that will read the desired input and place it in a RAM location that can be spit out via the ALDL data stream. Then need to add that to TunerPro so that the proper value is displayed.

RBob.
That sounds like an SAUJP update...
Reply
Old Sep 26, 2017 | 12:41 AM
  #8  
Vanilla Ice's Avatar
Supreme Member
20 Year Member
 
Joined: Aug 2002
Posts: 1,262
Likes: 60
From: ARIZONA
Car: 92 Trans Am Conv
Engine: LB9
Transmission: T5
Axle/Gears: 3.08
Re: Auxilliary 5V sensor ports on 7730 ECM?

SAUJP already does that.
It's also easy to add it to any other $8D bin.
Reply
Old Nov 17, 2017 | 02:27 PM
  #9  
Tuned Performance's Avatar
Sponsor
20 Year Member
Community Builder
Community Influencer
Community Favorite
iTrader: (95)
 
Joined: Dec 2004
Posts: 16,927
Likes: 1,016
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Auxilliary 5V sensor ports on 7730 ECM?

The link I posted with the internal schematic of the 730 doesn’t work.
Anyone know is f9 a v5 ref ? And is b8 12v ?
Reply
Old Nov 17, 2017 | 03:56 PM
  #10  
ULTM8Z's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 4,655
Likes: 319
Re: Auxilliary 5V sensor ports on 7730 ECM?

According to the pinouts in the link above,

F9 => U6-12 via 100 & 200K, CAL-29 via 100 ESC (100 & 4.02K to 5V)

B8 => ESC Tap (10K & 470K to GND) U13-15 via 10K, CAL-32 via 10K
Reply
Old Nov 17, 2017 | 04:52 PM
  #11  
Tuned Performance's Avatar
Sponsor
20 Year Member
Community Builder
Community Influencer
Community Favorite
iTrader: (95)
 
Joined: Dec 2004
Posts: 16,927
Likes: 1,016
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Auxilliary 5V sensor ports on 7730 ECM?

Thanks I guess I overlooked b8 being listed.
Funny it says 4.02k when a sd ls is 3.9k must be close enough.
Reply
Old Nov 17, 2017 | 06:00 PM
  #12  
Tuned Performance's Avatar
Sponsor
20 Year Member
Community Builder
Community Influencer
Community Favorite
iTrader: (95)
 
Joined: Dec 2004
Posts: 16,927
Likes: 1,016
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Auxilliary 5V sensor ports on 7730 ECM?

Do you know if a tpi maf esc module will work on f9. I think it uses a 100k ks.
Does it need higher voltage. How can voltage be changed in the reprogramming . Unfortunately I can’t read code but is there a hex address that can be changed ? I read that the 165 ecm puts out 9.3v koeo and running.
Of course with the memcals esc removed.
Reply
Old Nov 17, 2017 | 07:09 PM
  #13  
ULTM8Z's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 4,655
Likes: 319
Re: Auxilliary 5V sensor ports on 7730 ECM?

I have no clue on that one... Maybe RBob or one of the other experts knows...
Reply
Old Nov 17, 2017 | 08:05 PM
  #14  
Tuned Performance's Avatar
Sponsor
20 Year Member
Community Builder
Community Influencer
Community Favorite
iTrader: (95)
 
Joined: Dec 2004
Posts: 16,927
Likes: 1,016
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Auxilliary 5V sensor ports on 7730 ECM?

I think chevythunder is wrong. b7 Pinout on a 165 is 9.3v and diagnostic shows below 6v.
165 must be a 5v ref signal ?
http://chevythunder.com/fuel%20injec...ecm%20#1227165)
http://www.chevythunder.com/maf_esc_module_code_43.htm
Reply




All times are GMT -5. The time now is 11:46 PM.