Just replaced Opti and water pump on 94 Trans Am. Everything went together exceptionally well. However, when I went to crank the car it was definitely out of time and would not crank. I am certain the Opti was installed correctly. How do I get this jewel back in time, do I have to re-do the install or can this be done through the computer? Thanks in advance.

 

Sounds like you need to recheck the indexing on the splined drive shaft.

Did you loc-tite the rotor screws?

And make sure you have the plug wires in the correct order.

 

Injuneer, thanks for the reply.

I did loc-tite the rotor screws and I have the scraps and bruises on my arms from checking and re-checking the spark plug wires

Sounds like I am going to have to take her back apart and double check everything. Thanks again.

 

One other thing I will suggest is to make sure the pins on the optiharness are making good contact with the optispark plug. When I replaced my optispark I did the usual opti test with a multimeter and the probe spread the connectors enough so they were not making contact. After everything was back together the car still wouldn't start, I squeezed the connector pins back together and bam, good to go. Just a suggestion you can try before taking apart the car again, otherwise I agree withe Injuneer, time to recheck the alignment....

 

I will certainly check that Wild Bill. Thanks. Is it common to get a bad Opti?

 

If you bought a cheap Opti off ebay, they frequently fail out of the box. There are often problems with "store brand" replacements, Chandler, Accel, etc.

 

I changed my opti on my 95 z28 because I had low power after I went through all that trouble there was still no change anyone have any suggestions

 

What did you do to determine it was the Opti causing low power? Scan if for codes? Check the fuel pressure?

What were the symptoms of low power - any misfires, poor fuel mileage, smelled rich, hit a wall at a particular RPM?

Is the car stock? What trans?

 

Well the car is stock with no rev. limiter i slung a rod and had to put a crank kit in after that the car runs poor bad gas mileage after a lot of a review on ls1tech everyone seem to point to the Opti I've had conflicts about how to set the timing on the crank one says both at 6 o'clock the other says 6 and12 believe it or not I tried both ways and the car ran the same after putting a timing at 6 and 12 I replace the Opti and still no change

 

My next step is checking fuel pressure I'm wondering if it might be fuel regulator

 

Have you seen the timing set alignment and Optispark drive alignement procedures on Shoebox's website? This is the best source of info on the LT1 on the 'net.

http://shbox.com/1/keyway2.jpg

http://shbox.com/ci/sprockets.jpg

http://shbox.com/1/opti_back.jpg