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I bought a used MSD 6aL box from a friend and bought the wiring harness for it on my 89 5.7L TPI camaro automatic. I simply hooked it up and got good(I think)power and ground sources. My car ran fine with it and I could tell a better power difference with it plugged up but for no reason in the middle of just cruizing speed driving my car would die. When I coasted to the side of the road and try to turn on my engine again, the engine wont turn over.... I pop my hood and unhook the wiring harness from the coil and then plug in the factory connections and then it started fine. I did the spark test and it worked.. then when hooking the MSD back up it started fine but again after about 4 hours of driving my car died again with the same symptoms. It has done this after every time I hook the MSD up. Now I just drive with it unhooked because I am scared to drive with it. I have an ACCEL coil, aftermarket cap and rotor,new stock module, accel 8.8 wires, and bosch +4 plugs. Thanks for any information that you might have or any tips to my problems...
Thanks,
Clint


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89' 5.7L TPI Auto IROC American Racing Torque-thrust 2 rims ,Ported Plenum,Accel/Lingenfelter Runners,
Flowmaster, high-flow converter, SLP headers, B&M console megashifter, MSD 6aL, airfoil, K&N's,Gutted airbox, Bosch Platinum +4, 8.8 wires,Accel Coil

 

Call MSD and talk to their techs, it sounds like you have a bad unit.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

Maybe the other input wire is bare and grounded somewhere? (The purple one siamesed with the green one, assuming you're not using a crank trigger).

Just a wild guess.

 

Does MSD have an e-mail tech line where I can send this post to?

 

Yep, I've emailed them before. Its on their website at http://www.msdignition.com/

 

Joe LaPille [jlapille@msdignition.com]

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

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