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post #1 of (permalink) Old 08-05-2001, 06:48 PM
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carb/computer problems

86 samuri carbed
With to computer hooked up to the carb the samuri won't start. When we unhooked the computer the samuri started.
What part does the computer play with the computer. The only thing I know is that there is a bowl vent solenoid on it. Does any know what the computer does with the carb???

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post #2 of (permalink) Old 08-05-2001, 07:43 PM
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Re: carb/computer problems

the computer controls the idle... i had teh same problem - with computer connected i kept blowing the ignition coil fuse... when i disconnected the computer my zook would start but not idle... ended up replacing the computer, and you'll probalby have to do the same, but im almost 100 percent certain that you can go to an aftermarket mechanical carb (pony or weber) and that will work too...

if my computer ever blows again this is what ill do

Steve [img]/wwwthreads_images/icons/cool.gif[/img]
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post #3 of (permalink) Old 08-05-2001, 08:17 PM
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Re: carb/computer problems

I have an '87 computer that I bought a while back and no longer need. I'll give it to you for what I paid for it. If you need it contact me at [email protected]. Jim
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post #4 of (permalink) Old 08-05-2001, 11:22 PM
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Re: carb/computer problems

If you go to an aftermarket carb you can wire direct to the distributor and do away with the computer entirely. You may not even need to wire it from what you are saying. It does not do anything for the ignition but provide a 12v feed to the distibutor and coil. Then there is the emissions issue......

86 Zuki. YJs, spoa, 1600-8v, header, weber
post #5 of (permalink) Old 08-05-2001, 11:47 PM
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Re: carb/computer problems

i got 4 or 5 computers also if ya need one.

87 sammy (RAIL BUGGY) PROJECT 50 % complete. isuzu/chevy luv motor, auto tranny, tube chassis,3 link coils rear,at least 35" boggers, and whatever else i can get a deal on and modify.
post #6 of (permalink) Old 08-06-2001, 01:21 AM
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Re: carb/computer problems

Hi, nogo4wd

Computer 86-88 Sam controls carb. operation.

There is Black/Whitetrace wire main circuit for Sam to start
and run. It's busy circuit loops thur gen. positve on coil
fuel cut-off relay and bunch other stuff but it ends as
input to computer "TexasA&MOffRoad" expert on that
particular circuit. Anyway, if this computer input shorts
to ground blows fuse or pulls 12 volt low on that circuit
Sam will not spark and no fuel.

Careful with aftermarket electrical device addon that may
generate back EMF of 40 volts or more. Found OEM computer
I/O components to be auto maker cheap and rate them no more
40 volts , anything higher may smoke ECM so dodge lighting
strikes and save your ECM.

Help with your Sam or replacement computer you hit jackpot
when you found this board. On-Off road people here are just
incredible, as always do what they can to help others.


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