Okay I've already been on here asking questions trying to solve or make sure for certain that my opti is what I need to replace. I have a 95 trans am and it was taken on a test drive and sputted out at a light. Wouldn't start back up just turns over and thats it. I have replaced the fuel filter and I can hear the fuel pump working and there is good fuel pressure to the engine. Not getting any spark from plug when I pulled it off to test it. I pulled the coil off and had it tested at auto zone to be sure I wasn't being a goober and doing it wrong and it tested good. What are everyone's thoughts. Considering ordering new opti tomorrow from dal, but as I said just need to confirm it with myself over and over thats gonna be it.

 

In my experience the car still runs with a bad opti (it just runs very badly). I would check everything else associated with spark before going to the opti. What about the coil wire? I'm sure you've already done it, but I didn't see it on your explanation. This is a no brainer, but make sure the connector that plugs into the top of the opti is secure. Good luck.

 

It sounds like the opti for sure. If not the only other thing I can think of is the Ignition Control Module.

 

Hey bud,

Id definatley check the connector that plugs into the top of the opti. I did a throttle body bypass the other day and accedentally ripped the plug out while trying to get the radiator hose connected to the other hose. When i got finished i went to start the motor and it craked but wouldnt fire. When i disconnected the radiator hose from the throttle body the motor was still to hot and it spewed hot coolant out all over the opti so i figured thats why it wouldnt start afterwards. Anyways i put it up in the air at work and changed out the opti and to my surprise it wouldnt start!! So while i was looking back under the hood i tested the coil and still wasnt getting any spark so i began to think of what it might be. I knew the coil was good and the opti was brand new so i ended up checking that connector that goes into the top of the opti and sure enough it was busted. So now ive spenn 100 on a remanufactured opti and am about to spend another 90 on the connector plug!! This s**t is expensive so make sure and check everything well before jumping to conclusion

Sorry so long, Good luck,
Heath