LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Help! Opti spark or fuel pump problem?

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Old 04-06-2012, 03:49 PM
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Default Help! Opti spark or fuel pump problem?

I have a 97 Camaro SS, back in Oct. i stopped driving it because it wouldn’t start. I didn’t have the money at the time to fix it, so i put it away for winter.

Now i am trying to figure out what’s wrong, it will turn over and it has started a couple times but died within seconds. I checked the spark with the screw driver in the spark plug wire test, it had a quick white spark. I don’t have a way to check the fuel pressure at this time.

Some back ground on the car: it has about 118,000 miles, i did change the water pump two years ago after i bought it (if i had known about the opti spark i would have just changed it out then, didn’t know jack about it at that time) water did leak on the opti. I have only put a few thousand miles on it since then. No Modifications

Any help would be nice
Thanks
Old 04-06-2012, 03:53 PM
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Check for fuel pressure at the schraeder valve
Old 04-06-2012, 03:56 PM
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It sounds like fuel pump to me to be perfectly honest, but it could be both. Takt the coil wire off of your opti and do the spark test there with your screwdriver. It should spark quite a bit. If it doesnt, then it will either be ICM, Coil or something else. If it does, then it is fuel...turn the key on, then depress the schraeder valve and see if it spews fuel. If it doesnt, fuel pump...if it does, then get a tester to check how much pressure you are getting...check fuses for the injectors
Old 04-06-2012, 04:06 PM
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Spray some ether into the throttle body. If the car starts and runs for a little bit then dies its a fuel issue.

You can also borrow a fuel pressure tester from any parts store. Return it and get your money back.
Old 04-06-2012, 06:19 PM
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Is there a security light on, or flashing??? Could be a vats issue since it starts and dies??
Old 04-06-2012, 06:26 PM
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I did spray some ether into the throttle body and got nothing. I also depressed the Schrader vale and fuel does come out. I have a friend that can test the pressure for me so we are doing that in a few days.

I decided that the opti spark is coming off because I do have an oil leak coming from that area and the opti is covered in oil.
Thanks for the advise it has help out!
Old 04-06-2012, 06:30 PM
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The security light pops up like always and truns back off and it wont even fire it just turns over now
Old 04-06-2012, 07:01 PM
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Did you test the coil?? Don't take the opti off just yet...it isn't the culprit as often as people accuse it...I had a buddy tear his engine apart to fix the opti and he didnt listen to my advice to check the ICM and Coil first...he got the new opti on, put it back together and no start.....nothing. He called me, I came over and low and behold, it was a bad coil. What WOULD have been a $30 fix turned into a $550 one and a lot of heartache for him. So I am gonna tell you what I told him...

Check the Coil and the ICM before you accuse the opti! lol
Old 04-12-2012, 05:51 PM
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I just want to say thanks for the help, it was a bad fuel pump and it didn’t take all that long to do. The coil and ICM is still good. Next step is to fix the oil leak and then the clutch!



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