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C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Why is my 89 Gutless?

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Old May 10, 2010 | 05:40 AM
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oops sorry ASC automatic spark control.It is by the brake booster. brown and white wire. You will throw a code when it is disconnected (check engine soon) Clear it when done.
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Old May 10, 2010 | 06:01 AM
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Originally Posted by kenmohr
oops sorry ASC automatic spark control.It is by the brake booster. brown and white wire. You will throw a code when it is disconnected (check engine soon) Clear it when done.
Geeze ESC electronic spark control. Sorry I shouldn't comment until after coffee. Behind driver side head. Single wire connector. My base was 1* after tdc. Made a huge difference on gas and power. Now to the coffee pot. It is ready.
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Old May 10, 2010 | 07:52 AM
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How do you adjust the tps if it is out? just curious!
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Old May 10, 2010 | 10:22 AM
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Originally Posted by Phantom_Vette1
How do you adjust the tps if it is out? just curious!
I did this once on a truck. If memory serves, you just loosen off the two retaining screws and rotate the sensor while monitoring your ohm meter.
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Old May 10, 2010 | 10:40 AM
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Originally Posted by kenmohr
Geeze ESC electronic spark control. Sorry I shouldn't comment until after coffee. Behind driver side head. Single wire connector. My base was 1* after tdc. Made a huge difference on gas and power. Now to the coffee pot. It is ready.
Awesome, thanks. MMMmmm... coffee...
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