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#435710 - 05/02/07 11:56 PM Re: Removing the Monte Carlo SS computer [Re: 06mcss]  
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mannblk Offline
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Sounds like a TV cable issue. I would check this out first. Aftermarket companies sell brakets to make it possible to have the TV cables adjusted and working properly. HTH


Jeff

I know I don't get there often enough, but God knows I surely try.
It's a magic kind of medicine, that no doctor could perscribe.
Jimmy Buffett One Particular Harbor
#439305 - 05/14/07 11:54 AM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
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Expired Offline
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I just want to make sure I am removing all of the correct harnesses....



Here is a picture I took of the wiring harnesses that connect to the computer. My question is do I also unplug the connector(looks like two connectors into one) at the top of the picture(hangs down from the dash) as well? They all seem to be connected...I dont want to lose my HVAC controls, etc... I haven't used this computer in 8 years, so I am cleaning up unwanted engine bay clutter(tucked the harness into the inner fender)

Also, wouldn't it be easier to clip the connectors off the harness to get them through the firewall?

Thanks for all of the help...

-Josh

#439320 - 05/14/07 12:39 PM Re: Removing the Monte Carlo SS computer [Re: Expired]  
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robs 85ss Offline
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Those two connectors are for the computer only. Unplug them from your dash harness and you can push them through the firewall. For the cleanest removal you should take out your passenger side wheelwell and you can take the whole harness/gromet out without cutting anything just make sure you plug the whole. You wont lose control of your hvac stuff that is all on a separate harness. HTH

Rob


1985 Monte Carlo SS
Nasty 355/ Tremec 5 speed
#460546 - 07/17/07 06:15 PM Re: Removing the Monte Carlo SS computer [Re: 06mcss]  
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RICK2 Offline
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York Nebraska
I have heard both good and bad on computer chips. Who do I believe? Would the Jegs part no. be 18702 for stock application? Would I really notice a difference? Is it worth 160.00? Thanx!

#460575 - 07/17/07 08:27 PM Re: Removing the Monte Carlo SS computer [Re: RICK2]  
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85_SS Offline
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 Originally Posted By: RICK2
Is it worth 160.00? Thanx!


Absolutely not. If you can find one dirt cheap it is worth tossing in, but I have used a couple different ones I picked up over the years and you will never notice a difference.


[Linked Image]
1985 Chevrolet Monte Carlo SS
5.7 LITRE / TES Headers / SShaker Hood / WC T-5 5-Speed
1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M21 4-Speed
#460580 - 07/17/07 08:33 PM Re: Removing the Monte Carlo SS computer [Re: 85_SS]  
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Gruvin Offline
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 Originally Posted By: 85_SS
 Originally Posted By: RICK2
Is it worth 160.00? Thanx!


Absolutely not. If you can find one dirt cheap it is worth tossing in, but I have used a couple different ones I picked up over the years and you will never notice a difference.
There is only one person that I would get a chip from, I can PM you the details... He does specific work to the GM configuration but I think he only does the 1987 and 1988 years...


My first SS! Sold Jan 2004
[Linked Image]
87 SS bought 9-5-04: Sold 6-18-2010 - project 87 finds a new home with another undisclosed MonteCarloSS.com member!
#467985 - 08/07/07 10:55 PM Re: Removing the Monte Carlo SS computer [Re: 06mcss]  
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blackskies Offline
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guelph ontario
Hi All,can anyone help me .I have a 83 ss and orig trans I think 350c 3 speed,and Im wondering if Ill need a lockup kit or not,,I running a holly carb and hei dist and I want to put in a vacuum dist and pull the comp,does my trans have a lockup already? What do I need to do to get rid of the comp , I read all this page and maybe missing something, my comp aint running much anymore but still affects the timing when I unplug the 4 plug harness for dist to set timing, Anyone can tell me how to do this correct? Thanks!

is this what I need ???
http://www.txchange.com/sk.htm

THM 350C Lockup 1980up
Automatic shift; Street or full-race; Holds 1st, 2nd, and 3rd to any rpm; Back shifts to 3rd, 2nd and 1St at any rpm; prevents 2-3 clutch failure; Tow & GO and competition combination

Blackskies.

Last edited by blackskies; 08/07/07 11:15 PM.

#489653 - 10/05/07 02:21 AM Re: Removing the Monte Carlo SS computer [Re: blackskies]  
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Kick85monte Offline
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Lakefield, MN
does an 81 non SS have a computer? im pretty sure its not the origanal motor as well, but it might.


#490233 - 10/07/07 12:17 AM Re: Removing the Monte Carlo SS computer [Re: Kick85monte]  
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Kick85monte Offline
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anyone know if you can swap a 350 out of an older car and still use the computer as well


#490248 - 10/07/07 01:35 AM Re: Removing the Monte Carlo SS computer [Re: Kick85monte]  
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32v_dohc Offline
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my garage
The CCC computer has no concept of engine displacement. It controls primary jet area and spark advance.

HTH

John

#490381 - 10/07/07 02:42 PM Re: Removing the Monte Carlo SS computer [Re: 32v_dohc]  
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Kick85monte Offline
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Lakefield, MN
cool. so if i wanted to rn a bigger carb what would i have to do? also with the intake probably being different. adapter or what??


#490407 - 10/07/07 03:49 PM Re: Removing the Monte Carlo SS computer [Re: Kick85monte]  
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85_SS Offline
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The stock carb will flow 750cfm with minor mods, which is good for most street cars. In stock form, I believe it is mechanically limited to about 650cfm.


[Linked Image]
1985 Chevrolet Monte Carlo SS
5.7 LITRE / TES Headers / SShaker Hood / WC T-5 5-Speed
1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M21 4-Speed
#490413 - 10/07/07 04:07 PM Re: Removing the Monte Carlo SS computer [Re: 85_SS]  
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Kick85monte Offline
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Lakefield, MN
will the intake from the 305 bolt up to a 350 and be big enough? im not even sure if my carb is stock ill have to snap some pics. seems stock. its tiny it seems like. are there any aftermarket ones that will just bolt in with the computer?


#490608 - 10/08/07 12:42 AM Re: Removing the Monte Carlo SS computer [Re: Kick85monte]  
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Kick85monte Offline
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Kick85monte  Offline
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Lakefield, MN
anyone?


#490705 - 10/08/07 03:21 AM Re: Removing the Monte Carlo SS computer [Re: Kick85monte]  
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Kick85monte Offline
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Lakefield, MN
also, do i need a TV cable adapter for a th350 trans?


#491184 - 10/09/07 08:01 AM Re: Removing the Monte Carlo SS computer [Re: 06mcss]  
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johnson city,TN
Thanks for the info. When I changed motors I didnt unhook my computer and the check engine light is on now I will unhook it.


Derek - 327 SBC - SMCC member
#491403 - 10/09/07 11:42 PM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
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85LT1SS Offline
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SSin City, LaSS VegaSS
OK guys, I'm new to the Monte Carlo SS world, I own an 85 Monte and I want to swap the motor to an LT4 I just finished building, the new motor is sitting in my garage with the wiring harnes to the side, what I need to know is exactly what to do to remove the computer.

I know where the comp. is located, and I can see the the stock harness splits in two, two plugs go to the computer and the other half goes to the dash, I am asuming that the dash harness stays, correct?

I guess I need to do a little more research on this.


Jose


85 SS
#491833 - 10/11/07 02:32 AM Re: Removing the Monte Carlo SS computer [Re: 85LT1SS]  
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I think "Big Guy" from Kentucky did this swap. He will be able to help you. let me see if I can locate him.


#491837 - 10/11/07 02:42 AM Re: Removing the Monte Carlo SS computer [Re: crazyhorse1983ss]  
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oops actually it is John "1badss" look him up he knows .
 Originally Posted By: crazyhorse1983ss
I think "Big Guy" from Kentucky did this swap. He will be able to help you. let me see if I can locate him.


#493121 - 10/15/07 09:20 PM Re: Removing the Monte Carlo SS computer [Re: crazyhorse1983ss]  
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How do I get the harness out from under the dash? Do I need to pull the dash? I cant seem to get to it from behind the radio and I dont want to just yank on it. Also, Everthing under the steering column is a cluster f**k. How do you get the harness out from behind the fuse box. It looks like thats where it leads to.


84 Monte SS stolen September 2012. 077 DFE Jefferson County KY plate. $2500 reward. Vortec headed 350ci, th350, 3:73 limited slip cast aluminum cover, Autometer gauges, Pro-Stick, 2.5" fiberglass hood.



Matt
#493212 - 10/16/07 01:36 AM Re: Removing the Monte Carlo SS computer [Re: 84supersport]  
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Kick85monte Offline
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Lakefield, MN
also, do i need a TV cable adapter for a th350 trans?

can i run a 350 with the stock computer, with a bigger carb and intake?


#495971 - 10/25/07 04:27 AM Re: Removing the Monte Carlo SS computer [Re: Kick85monte]  
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Lorette MB CANADA
HELP!!! this helped alot but it confused me too. i plan on installing a modified pontiac 400 with a th350, all rebuilt and originally from a 77 t/a. is there a way to keep the computer while doing this? i want to run dual 500 cfm holleys. does anyone have any idea where i could find adapters for the carbs and distributer? i guess i would have to run dual cc Qjets right? thanks for any help guys.


'86 MCLS stock 305 w/mild cam, basic setup, bodywork still not done.
'86 Jeep Comanche, 2 Blown Diffs, sitting indefinitely
'04 Dakota SLT 4.7 4X4 True Duals with Smithys Glasspacks, K&N Cold Air Intake and SCT Tuner(wrecked)

#500098 - 11/06/07 04:11 AM Re: Removing the Monte Carlo SS computer [Re: 06mcss]  
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Marlton ,NJ
I cut all my wires from my computer..i run all mechanical gauges.. my distributer wire and starter wires were still fine so i just used them..now i have mild 350 with a turbo350 trans..i ran the vacuam from the trans to the edelbrock intake manifold and she seems to be shifting fine am i missing somthing..i just got her on the road and i dont want to blow anything up..is there anything i should look for or is she hooked up fine


1987 MonteCarlo LS---345HP/370torque GM ZZZ crate motor---Holley 670cfm Street avenger---Mallory HEI---TH350/shift kit/2300 stall converter---GN 8.5" rear 342 gears---2" drop spindles with 1" springs up front, Moroso drag springs in back---275/60r15 Mickey Thompson drag radials---reduced weight to about 3000 pounds even
#511327 - 12/11/07 03:17 AM Re: Removing the Monte Carlo SS computer [Re: monte87LSsssssssss]  
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jigsaw Offline
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Laredo TX
i need to know if this oil sensor is needed if u dont have a computer



i used a 'tee' to attach my oil pressure gauge sensor to the other one, but it keeps leaking oil through there.



can i remove it and install my oil pressure gauge sensor in it's place if i dont have a computer or do i still need to keep it

thanks

Last edited by jigsaw; 12/11/07 03:18 AM.
#511329 - 12/11/07 03:28 AM Re: Removing the Monte Carlo SS computer [Re: jigsaw]  
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ss4ever Offline
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The two prong sensor was for the choke, would only let power through to the choke when there was oil pressure so that the choke wouldn't open up on it's own if you left the key on.

You can ditch it just make sure you run a wire to the choke that is not interupted by the pluggin for this sensor.


1983 Monte Carlo SS Turnkey ZZ4/700R4, Dakota Digital Instrument Cluster, 77k mile car. Many more mods to come soon.
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