questions from a newbie - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shrtbx · 02-13-2007, 02:29 AM

Hello all. I just picked up an 86 shortbed last week. Must say im very happy thus far. I have a 305 engine with a q jet. My question is are these trucks computer controlled? Im thinking about getting an edelbrock q jet replacment for (for emission purposes). Only thing is edelbrock states that carb is for non-computer controlled cars. I have a check engine light but it seems rather basic. Truck also has 700 r4 which i know requires a little help from the computer in some cars. Anyone have any idea?

Low84 · 02-13-2007, 02:52 AM

First of all welcome to the site!

I know this question has been asked before, yet I figure out a way to forget every single time

But I'm pretty sure the vast majority of 86's had some computer stuff going on.

I'm sure someone will chime in tomorrow and answer this question for you.

Malo83 · 02-13-2007, 03:36 PM

If it's a CA. truck check the Q-jet to see if you have 2 elect. plugs going into the front of the Carb, if you do then it will have the Computer, my 83 has the Computer and the E4ME Q-jet, Computers were only put in Ca. trucks

John

84slopwaggin · 02-14-2007, 05:14 AM

What happens when you disconnect the plugs as I have? I didn't think they were needed. The q-jet that was on my 84 GMC didn't have any electronics except for the choke. If the electric carb doesn't work I'll switch to the one that came in the GMC. It ran really well.

kenm78 · 02-14-2007, 07:08 AM

you break it!!!! just playen not sure to really tell ya but might kick on the MIL light

kenm78 · 02-14-2007, 07:09 AM

By the way welcome to the board from Oklahoma City.

84slopwaggin · 02-14-2007, 03:35 PM

My truck is a 85. I don't know what a MIL light is. I read that the plug had something to do with fuel consumption and at times it actually made the truck stumble. Thats why I figured I didn't need it. My truck wasn't stumbling, but I was trying to clean it up a little under the hood.

82c10 · 02-14-2007, 03:40 PM

Quote:

Originally Posted by 84slopwaggin

My truck is a 85. I don't know what a MIL light is. I read that the plug had something to do with fuel consumption and at times it actually made the truck stumble. Thats why I figured I didn't need it. My truck wasn't stumbling, but I was trying to clean it up a little under the hood.

malfunction indicator lamp (or light)

Srubydo1986 · 02-14-2007, 03:48 PM

My check engine light inmy 1986 would go out ever after chanjing just about every thing so i gave up and removed the light from it well after some time i broke a fork in my manyual transmission and went to replace it i thought sents im there ill make my 305 a 350. I replaced the bulb back in its place and no more light. Who know what was wrong i guess the truck just wanted a 350

shrtbx · 02-16-2007, 02:10 AM

IM thinking about just scrapping the quadra jet and putting in an edelbrock avs thunder. I have one just sitting out in the garage. All that will happen is that the check engine light will come on? After driving it today i find that im not getting decent gas mileage for a 305 with a 700r4 trans. So i dont see how that little plug will help me any when it comes to regulating fuel mixture and what not. I could be wrong but what do you all think.

02-13-2007, 02:29 AM	#1
shrtbx Registered User Join Date: Feb 2007 Location: los angeles Posts: 202	questions from a newbie Hello all. I just picked up an 86 shortbed last week. Must say im very happy thus far. I have a 305 engine with a q jet. My question is are these trucks computer controlled? Im thinking about getting an edelbrock q jet replacment for (for emission purposes). Only thing is edelbrock states that carb is for non-computer controlled cars. I have a check engine light but it seems rather basic. Truck also has 700 r4 which i know requires a little help from the computer in some cars. Anyone have any idea?

02-13-2007, 02:52 AM	#2
Low84 Registered User Join Date: Oct 2004 Location: Roma,TX Posts: 774	Re: questions from a newbie First of all welcome to the site! I know this question has been asked before, yet I figure out a way to forget every single time But I'm pretty sure the vast majority of 86's had some computer stuff going on. I'm sure someone will chime in tomorrow and answer this question for you. __________________ 1978 stepside C10 build: http://67-72chevytrucks.com/vboard/s...d.php?t=468265

02-13-2007, 03:36 PM	#3
Malo83 Cruzzzn' Vet Join Date: Jan 2005 Location: Porterville,Ca. Posts: 1,918	Re: questions from a newbie If it's a CA. truck check the Q-jet to see if you have 2 elect. plugs going into the front of the Carb, if you do then it will have the Computer, my 83 has the Computer and the E4ME Q-jet, Computers were only put in Ca. trucks John

02-14-2007, 05:14 AM	#4
84slopwaggin Registered User Join Date: Apr 2005 Location: Ar Posts: 558	Re: questions from a newbie What happens when you disconnect the plugs as I have? I didn't think they were needed. The q-jet that was on my 84 GMC didn't have any electronics except for the choke. If the electric carb doesn't work I'll switch to the one that came in the GMC. It ran really well.

02-14-2007, 07:08 AM	#5
kenm78 Broken Down Join Date: Dec 2006 Location: Choctaw, Oklahoma Posts: 1,267	Re: questions from a newbie you break it!!!! just playen not sure to really tell ya but might kick on the MIL light __________________ kenm78 1982 Chevy 4X4 Project truck “It’s better to keep your mouth shut and let people wonder about your ignorance, than open your mouth and reveal all doubt”

02-14-2007, 07:09 AM	#6
kenm78 Broken Down Join Date: Dec 2006 Location: Choctaw, Oklahoma Posts: 1,267	Re: questions from a newbie By the way welcome to the board from Oklahoma City. __________________ kenm78 1982 Chevy 4X4 Project truck “It’s better to keep your mouth shut and let people wonder about your ignorance, than open your mouth and reveal all doubt”

02-14-2007, 03:35 PM	#7
84slopwaggin Registered User Join Date: Apr 2005 Location: Ar Posts: 558	Re: questions from a newbie My truck is a 85. I don't know what a MIL light is. I read that the plug had something to do with fuel consumption and at times it actually made the truck stumble. Thats why I figured I didn't need it. My truck wasn't stumbling, but I was trying to clean it up a little under the hood.

02-14-2007, 03:48 PM	#9
Srubydo1986 The Crazy Machanic Join Date: Jan 2007 Location: Nokesville Va Posts: 1,437	Re: questions from a newbie My check engine light inmy 1986 would go out ever after chanjing just about every thing so i gave up and removed the light from it well after some time i broke a fork in my manyual transmission and went to replace it i thought sents im there ill make my 305 a 350. I replaced the bulb back in its place and no more light. Who know what was wrong i guess the truck just wanted a 350

02-16-2007, 02:10 AM	#10
shrtbx Registered User Join Date: Feb 2007 Location: los angeles Posts: 202	Re: questions from a newbie IM thinking about just scrapping the quadra jet and putting in an edelbrock avs thunder. I have one just sitting out in the garage. All that will happen is that the check engine light will come on? After driving it today i find that im not getting decent gas mileage for a 305 with a 700r4 trans. So i dont see how that little plug will help me any when it comes to regulating fuel mixture and what not. I could be wrong but what do you all think.



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