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01-04-2001, 11:34 PM
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#1 |
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Registered User
Join Date: Jul 2000
Location: Ridgecrest, CA
Posts: 182
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ignition modules
I was just wondering how the ignition modules with different numbers of pins work differently? The 4-pin modules are pretty self-explanatory (pickup coil input, output to coil), but on the other modules there's a connector wire that goes into the cab through the firewall - why?
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'71 Custom 10 350/TH350/3.73 Holley 650 Dbl. Pump, Headers, HEI ***************************** '76 K10 350/TH350/205/12-bolt(R)/Dana44(F) Primer Gray! ***************************** '01 Grand Prix GTP - my 260 HP gas sipper! Victory Red |
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01-05-2001, 07:32 PM
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#2 |
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Registered User
Join Date: Dec 2000
Location: oklahoma city
Posts: 2
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the two are different the 5 pin is without a computer and the 7 pin is with a computer. that is computer controled . a CCC or a C4 system
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01-05-2001, 08:47 PM
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#3 |
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You get what you pay for
 
Join Date: Dec 1999
Location: Cherryville, NC
Posts: 4,798
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The 5 pin module is for distributors with the ESC (Electronic Spark Control) system. This is the one that has the wires going through the firewall.
The ESC distributor plugs into a control module behind the glove box. All the ESC does is control spark knock. You will notice the knock sensor screwed into the block in front of the starter. I have replaced all the mess on my truck with an MSD Pro-Billet HEI distributor. Hope this helps, ------------------ Mike 1985 Chevy C-10 Mike's 73-87 Chevy Pickup Site
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Mike 1985 Chevy C-10 |
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01-06-2001, 02:10 AM
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#4 |
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Account Suspended
Join Date: May 2000
Location: IL
Posts: 0
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My ESC control box is near the accelerator pedal, mounted in a free-stand-up position. This is in the 81... |
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Linear Mode
