LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Hot weather issue

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Old 07-20-2015, 10:14 AM
  #16  
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Re: Hot weather issue

Doubt it. If you want to play parts roulette (lol...I love that but can't claim it as mine....got it from Fred), you might replace the coil. Also check the spark plug wire between the coil and opti.

Last edited by DelSoto; 07-20-2015 at 10:18 AM.
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Old 07-20-2015, 11:07 AM
  #17  
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Re: Hot weather issue

Originally Posted by Xiantyl
So new icm still same issue lol , starting to think it's my optispark , could changing just the cap and rotor be enough since I have nk SES light ?
The heat soak problem affects the optical cam position sensor. That is located in the body (back 1/2) of the Opti. Replacing the cap/rotor will not replace the sensor. When the sensor fails, it may set DTC 16, and that does not turn on the SES light (assuming "nk" should have been "no").
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Old 07-20-2015, 11:49 AM
  #18  
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Re: Hot weather issue

I was going to tell him to scan again (which could reveal DTC 16), but at this point it feels like beating a dead horse. How many times can you give advice to have it ignored over and over before you give up.
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Old 07-21-2015, 05:42 AM
  #19  
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Re: Hot weather issue

Originally Posted by DelSoto
I was going to tell him to scan again (which could reveal DTC 16), but at this point it feels like beating a dead horse. How many times can you give advice to have it ignored over and over before you give up.
Wasn't ignoring your advice I stated I'm waiting until payday to purchase my aldl cable. Figured I could replace parts in warranty in the meanwhile and chance fixing the problem , now I do have a SES light now so I'm thinking its the optical sensor that is bad but I won't know for sure until I'm able to run a scan .
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