blk96z07

I did my 96 lt1 swap in my 94 formula.
I finished everything up went to start it just cranks n cranks. I checked the fuel pressure its got pressure up top. So i checked for spark i got Nothing dam im pissed at this point...
Checked no 1 plug no spark.. checked the coil nothing.. what can be wrong? I dont have a ground on the battery to body can that be n issusr? How do i start to fix this issuse? Let me kno thankx

nomoneyz

iTrader: (15)

First connect all your grounds and recheck all wiring. Second, have you checked out the VATS system.

blk96z07

I will check everything over again tomorrow.
Secondly is the ground needed for the battery to body? my harness didnt have a second ground from the harness only connects to the battery.
Third how do i check to see if the icm n coil get signal from the pcm? Do i disconnect the opti side of the plug wire n put a spark plug there to see if i get spark from the coil?

blk96z07

Took off the icm n coil went to autozone got them checked out there good. So whats next optispark or the harness? Is the autozone or chandler motorsports any good?

cprmn14

http://shbox.com/1/4th_gen_tech2.html#opti_test
follow this step by step, also check the terminals on both sides of the opti connector, they are known to get corroded.

Did you replace the opti? if you did, are you sure you installed it properly? If you have a cam-dowel driven opti it can easily be installed incorrectly.

Im going through the same thing with my swap so ive done all of this multiple times, lol

blk96z07

Update
Before my saints game for some reason i wanted to take off the optispark! So i did just that i took off the water pump. So i started lookin over the opti harness, i pulled it out cause i seen the wires looked cracked n stuff, so i took it out i be damned rust on the end of it.. so i pulled the optispark out i turned it upside down rusty water came out i was lke dam.. so now i gotta wait till friday to get a new one.. any body had any luck with chandlers opitspark? I kno i kno im kinda broke this week.. i need my car

SS RRR

iTrader: (2)

If it's been created for the LT1 it's been used by members of this forum at least once or a hundred times. Do a search and you'll see there are a lot of negative threads about those particular optisparks.

lt1slowz28

I've ran a chandler for over two years no problems

cprmn14

Make sure if you get a chandler off ebay make sure its from chandler motorsports, not a knock off company.

nomoneyz

iTrader: (15)

I'd go delco only.

cprmn14

Delfi's can be had pretty cheap also, and they are a delco product. they also have good reviews on google

blk96z07

Sorry for the late updates....i done went thru 2 ebay optispark! First one it started ran for about 10 mins then i heard something break,the car just died.. I knew the rotor broke..took it apart head some rattling knew it was the rotor..sent it back they sent me a new one.. I installed it started on first try..i was like yea i got my car back...lol joke...soi put everything bck together,started it ran i was happy! Let it run for about 20 mins then i was revin it till bout 4k a few times it just died... I already knew what happend dam rotor sure buff it was.. Lesson learned dont buy aftermarket or ebay knock-offs lol.. Now im waitin for the new oem optispark to come in.. Thanks for all yall input n comments will update when it comes in

LT1

iTrader: (1)

That sucks to have to take it all back out and do it over and over again. Good luck

cprmn14

Bummer man, but its a good lesson learned for you and everyone reading. Im sure your new GM opti will give you no problems