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

Finaly changed my injectors

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Old Apr 14, 2007 | 03:25 AM
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Default Finaly changed my injectors

Well i finally changed the injectors on my 90 and wow what a difference i had three bad ones but i changed all eight and it runs good and suprisingly it only took me about 4 1/2 hrs and i changed out the originals with accels. But i still need to reset my timming and my plugs. can anyone tell me the correct steps on how to change my timming?
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Old Apr 14, 2007 | 09:07 AM
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Get motor to operating temp
disconnect EST wire at connector beside brake booster. single tan wire.
start motor, check and adjust timing 6*btdc
turn off motor and replace est wire
remove neg bat terminal(30 sec should be enough) to clear code 42
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Old Apr 14, 2007 | 09:09 AM
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There is a tan wire with a black stripe that comes out by the brake booster/wiper motor area. Disconnect it. Start car. set timing to 6*. turn off car and reconnect the tan/black wire. Done.



86 got here first again.
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Old Apr 14, 2007 | 10:36 AM
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Don't forget to reset the TPS and IAC also... check and clean the TB... to complete the tune process... good luck
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