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just dies Posted By: cunningham On: 08-30-2008 @ 08:09:47 Reply | Edit ok, lastnight i was driving my z28 an all of the sudden it just died. i let it sit for a min and it fierd back up with no problem. this went on about three times and now it wont start at all. its deff electrical because it acts like im just shuting the key off. if it was fuel related it would sputer then die. i replaced the opti this last spring so i dont think thats the problem. any ideas? a sensor maybe?? -- 95 camaro Z28 stock for now but a 383 is in the works Posted By: x91z28x On: 08-31-2008 @ 14:43:03 Reply | Top | Edit when you did the opti did you replace the water pum? make sure nothin is leaking on the opti. the do your basic diag. do you have spark? fuel pressure? all the fuses good? start with stupid stuff and work up -- Any chevy can be an SS. Only a Camaro can be a Z28 Posted By: 94tagt85iroc On: 09-01-2008 @ 14:28:48 Reply | Top | Edit my 94 did the same thing it was the icm and than started again and was the opti my 93 did it also but it was just the coil 23 dollars so you might start there -- 1985 iroc impulse blue 355 1994 trans am gt m6 lt4 hot cam cai flowmaster Posted By: Irishman930 On: 09-01-2008 @ 18:43:05 Reply | Top | Edit definately check the opti ive been through like 40 of them in 3 years....lol -- stroked to 396....and it halls balls.....working on video 
IMPORTS ARE LIKE TAMPONS...EVERY PUSSY HAS ONE..!!! Posted By: cunningham On: 09-02-2008 @ 11:16:51 Reply | Top | Edit if it was the opti it would probably sputer and die. im thinking its the icm or maybe the crank sensor because it will start fine if it cools down -- 95 camaro Z28 stock for now but a 383 is in the works Posted By: x91z28x On: 09-03-2008 @ 07:14:22 Reply | Top | Edit it might not sputter if it was the opti. if you got a sudden signal lose you lose spark all the sudden...i had it happen to me an dmy car randomly died. -- Any chevy can be an SS. Only a Camaro can be a Z28 Posted By: jjdynomite 
On:
09-03-2008 @ 10:31:04 Reply | Top | Edit
try these before buying any parts http://shbox.com/1/4th_gen_tech2.html#opti_test http://shbox.com/1/coil_testing.jpg --  Posted By: cunningham On: 09-03-2008 @ 11:05:19 Reply | Top | Edit its deff. heat related. i changed the icm then unpluged the fans and let it run for a bit. once it got up to around 180 it died. im thinking it the crank sensor -- 95 camaro Z28 stock for now but a 383 is in the works Posted By: cunningham On: 09-03-2008 @ 11:43:47 Reply | Top | Edit ok, i work at a napa store and i tryed to look up a crankshaft sensor and i dont show one at all but i show a crankshaft sensor conector? i called a deeler to get a part number an they told me its built into the opti. anyone know anything about this??? -- 95 camaro Z28 stock for now but a 383 is in the works Posted By: 94tagt85iroc On: 09-03-2008 @ 23:50:05 Reply | Top | Edit it is in/ part of the opti, they dont take to long to change once you have done it the opti that is -- 1985 iroc impulse blue 355 1994 trans am gt m6 lt4 hot cam cai flowmaster Posted By: cunningham On: 09-04-2008 @ 12:26:07 Reply | Top | Edit can you get just the modual without geting the whole dist. at napa we can get the dist. but doesnot include the modual and GM cant even find it -- 95 camaro Z28 stock for now but a 383 is in the works Posted By: ryguy_45832 On: 09-04-2008 @ 14:12:21 Reply | Top | Edit Will a icm off of a 95 car work on a 94? I'm not sure if they were all the same from 93-97. I believe the coils changed over later on to a single plug connection. -- 94z28 13.0@109 (still tweaking) best 60ft:2.22 
 Posted By: jjdynomite
On:
09-04-2008 @ 16:50:44 Reply | Top | Edit
95/96 was the coil change if I remember correctly -- Posted By: 94tagt85iroc On: 09-04-2008 @ 18:09:28 Reply | Top | Edit icm is diffrent from a 93 to 94 for sure other than that i would go to auto zone website and pull up the diffrent parts for the diffrent years and compare the numbers -- 1985 iroc impulse blue 355 1994 trans am gt m6 lt4 hot cam cai flowmaster Posted By: Michael93Z28 On: 09-11-2008 @ 14:52:41 Reply | Top | Edit when my opti first went out it was 2 weeks after I bought the car...93 Z28.They had just did a tune up,Car hadn't missed a lick while I was driving it,one night I was making a turn and it just died like you turned the key off. I started on it and it would hardly run but got it a few blocks to make it home.pulled cap off and had original cap and button (151,xxx miles).Changed them and it fired right up.Thought problem was solved.About 2 weeks later developed a complete shut down between 4-5000 rpm's.Tried everything sensor's,fuel,electical shorts...nothing,went back to opti and discovered main part of Dist. was worn completely out(where cam drives it)replaced whole Dist.(cap,wires,plugs...all )Ran like a beast...for about 2 weeks  back to the drawing board, disovered at night my LT1 glowed like a X-mas tree, thought...ok new wires and everything...then replaced coil,ignition module,redid all ignition grounds,raised coil/module off head with bolts to help prevent heating...nothing...new wires again (Accel 8.5mm) glowing stopped...lasted about 2 weeks, was missing again, ok...new wires (Bosch 8mm)...not even 2 weeks...lol,new wires (MSD Streetfire 8.5mm)...almost 3weeks,getting there finally, Vision MotorSport 10.2mm,been 3months now, and going strong (as it should be!!!)The lesson is just cause it's new or you fixed it don't mean it's still not the problem,it took me all this to learn that..lol hope this helps! -- 93 camaro Z28 wanna see it in action...just hit the link. http://www.youtube.com/watch?v=xCO2uBjItcU -- 93 camaro Z28 wanna see it in action...just hit the link. http://www.youtube.com/watch?v=xCO2uBjItcU [ Edited on 09/11/2008 @ 14:55:20 ] Posted By: 94junker On: 09-11-2008 @ 15:44:23 Reply | Top | Edit your opti drive pit is prolly either offset or bent and your killing one distributer after another read up on problems with the drive pin
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