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remote start a carb car

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=140409
Printed Date: December 07, 2021 at 12:52 PM


Topic: remote start a carb car

Posted By: tekin
Subject: remote start a carb car
Date Posted: December 27, 2015 at 1:42 AM

I have a carbureted car and want to add a remote start just for fun, and am using a firstech 7as brain also know as compustar.

Can anyone tell me which wire I can use off the brain as I have used the trunk release for the popper in the trunk.

Also what is a good way to set this carb/remote starter up



Replies:

Posted By: kreg357
Date Posted: December 27, 2015 at 6:03 PM

Can't help too much, but with a cold engine you need to get a solenoid to act as a one shot throttle plunger to prime and set the choke.  Then perhaps a second solenoid pulse after a 20 seconds or so to kick the fast idle down.  On a warm engine, this set-up might not work all the time ( could flood the engine )...  

With a CM7000-AS, you could use a POC set as GWR to initiate the first solenoid pulse and a PAC TR7 unit, triggered by that GWR to do the second pulse after a set number of seconds. 

Just some random thoughts...  Never tried it myself.



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Soldering is fun!




Posted By: tekin
Date Posted: December 27, 2015 at 10:25 PM
what is a POC and pac tr7




Posted By: howie ll
Date Posted: December 28, 2015 at 2:59 AM
POC is an aux output, PAC Tr7 is a timer similar to DEI 528t.

The problem is with the mechanical throttle linkage. If your vehicle starts on the turn of a key in any weather first thing in the morning then you won't need the above. BUT adjusting the two solenoids will take forever.
Professional installers won't touch it.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.




Posted By: tekin
Date Posted: December 30, 2015 at 8:39 PM
hey I understand the manual throttle thing, and was thinking of just running a trunk pop solenoid, but to be honest it starts in 1 crank anyways. I think the output TACH SENSE has to be wired to the NEG side of the coil is that right, cause I was just gonna give it a shot cause it is so easy to wire anyways. If it does not start in 1 shot then which output would I use to send a pulse to the solenoid??




Posted By: howie ll
Date Posted: December 31, 2015 at 2:40 AM
Yes definitely (-) side of coil also marked 31.
If it starts on first crank, don't bother with the solenoid initially.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.




Posted By: tekin
Date Posted: December 31, 2015 at 5:30 PM
hey what you mean by 31, I have the whole alarm installed and the tach wire from the alarm hanging under the dash, so I was just gonna extend it to the coil NEG side of coil. I don't think I need to put a relay so if I am doing something wrong let me know.

Also the reason I wanted to ask about the solenoid is to tap the correct wire off the alarm harness at the same time




Posted By: howie ll
Date Posted: December 31, 2015 at 5:34 PM
Nothing wrong, the terminal you want is the side going to the distributor, marked variously as (-), 31 or CB depending on country of origin.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.




Posted By: tekin
Date Posted: January 01, 2016 at 10:36 PM
but which output from the alarm should I use for a solenoid if I do end up using it, as I have a trunk popper already installed




Posted By: kreg357
Date Posted: January 01, 2016 at 11:05 PM

A couple of ways to go here.  Probably the best is to set it up as a manually controlled function from the CM700As.

Set up an AUX output for 1 or 2 seconds controlled by the remote.  You would trigger the AUX output prior to a remote start.  The 1 or 2 seconds output would extend the solenoid for that time period setting the choke and priming the engine and then it would retract to its rest position. With the choke set, you could then remote start the engine.  Another AUX with a shorter time period and a solenoid with shorter stroke could be used to kick down the fast idle. 

If the engine was warm, you could omit pressing the AUX button and just go for the remote start.

You might need the OP-500 programmer to set up these times in the Special Option Groups.



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Soldering is fun!




Posted By: tekin
Date Posted: January 01, 2016 at 11:18 PM
ok I totally understand the concept of what is suppose to happen with choke and kickdown, but my question for which wire to use off the alarm is still unclear to me so that is the info I need




Posted By: kreg357
Date Posted: January 02, 2016 at 5:00 AM

The CM7000AS has 8 POC type outputs.  As a default, all of the POC outputs are assigned a function as follows :
CN5/1     POC #1   Blue/White        GWA
CN5/3     POC #2   White     Horn
CN5/5     POC #3   Blue/Green        Lock
CN5/7     POC #4   Blue       Unlock
CN5/9     POC #5   ORANGE / White    Disarm
CN5/11   POC #6   Orange Arm
CN5/13   POC #7   Violet/White       Trunk Release
CN5/15   POC #8   Black     Status ( GWR )

You can pick any of the the above listed wires that you are not planning to use and re-assign it to AUX 1.  The default is
control by remote ( 4-03 ) with a .5 second pulse ( 4-01 ).  You could try that or if the solenoid needed a longer pulse,
change 4-01 to Option 4 ( program ) and in Special Option Group 1 set Feature 2 ( AUX1 output time ) to 1 or 2 seconds.

The procedure is listed in the Install guide :

Setting Auxiliary Outputs on Connector 2
You Must Have the OP500 Option Programmer.
Setting auxiliary outputs on the control module involves the Programmable Output Connector wires (POCs).
Choose two odd pin wires that you are not using on the grey 20 pin connector. For example we will use
POC 7 and 8.

STEP 1: Plug in OP500 and use the Right or Left Arrow Button to scroll through the menu to POC 7 and
POC 8 on LCD Line 1.

STEP 2: Use the Up or Down Arrow Button to change the lower number on LCD Line 2 to 10 – Auxiliary
1 or 11- Auxiliary 2.

STEP 3: Scroll up the menu to Option 4-01 and 4-02 and set the options. Please see the Option Table
for details.

STEP 4: Our control modules have a secure auxiliary option 4-05. This requires you to tap the Start
Button before you tap the Trunk Button for Aux 1 or Hold Trunk + Start for 2.5 an then tap
Trunk for Aux 2. On 1-Way remotes you must hold the Trunk and Start Buttons for 2.5 seconds
then tap the Trunk Button for Aux 1 or the Start Button for Aux 2.

STEP 5: If you need to change the time settings of the outputs, scroll down to AU1 or AU2 on the
OP500. LCD Line 2 is the timed output. Note: with an OP500 update (techfeed.
compustar.com) you will now be able to allow for timed AUX outputs of up to
15 minutes.

STEP 6: Hold the “W” Write button for 3 seconds to set all the options.

Please note that Step 4 above describes how to cause an AUX 1 output with a remote.  This will also be described
in the Remote Kits' Users Guide for the particular remotes selected.



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Soldering is fun!




Posted By: tekin
Date Posted: January 02, 2016 at 11:39 PM
wow thank you for the detailed information I really appreciate that




Posted By: prince504
Date Posted: January 17, 2017 at 8:53 PM
howie ll wrote:

Nothing wrong, the terminal you want is the side going to the distributor, marked variously as (-), 31 or CB depending on country of origin.


kreg357 wrote:

A couple of ways to go here.  Probably the best is to set it up as a manually controlled function from the CM700As.


Set up an AUX output for 1 or 2 seconds controlled by the remote.  You would trigger the AUX output prior to a remote start.  The 1 or 2 seconds output would extend the solenoid for that time period setting the choke and priming the engine and then it would retract to its rest position. With the choke set, you could then remote start the engine. 




I will be doing work on a carb vehicle soon -- 87' Chevy Monte Carlo -- and spoke to an Audiovvox Tech. rep who said I can use voltage sense -- using an APS-997E -- on these older vehicles instead of Tach at the (-) coil. What is your take on this guys?

Was thinking of using a trunk solenoid with an aux output just as described earlier.





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