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

Service Engine Soon DTC's Listed!

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Old Mar 20, 2009 | 09:03 PM
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Unhappy Service Engine Soon DTC's Listed!

ok so im driving down the highway at about 65 MPH and speed up to about 80 MPH to pass someone and then the SES light comes on!

I drove the car home and hook up the laptop with Datamaster and here is the codes i recieved.

MALF 26: CCP Electrical Fault
MALF 27: EGR Electrical Fault
MALF 77: Fan 1 Fault

also the fans are not coming on.

Any Help????

its the car in the Sig.
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Old Mar 21, 2009 | 11:03 AM
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ok so i found a FUSE blown in the engine fuse box, i replaced it and cleared all codes, but then as i drive it blows the fuse again and the same codes come back???

also i got another code along with it its DTC 86 TCC Stuck On!

Please Help!!!
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Old Mar 21, 2009 | 11:08 AM
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You need a wiring diagram to chase for faults on wiring and components that are on the fuse you replaced (whichever it was).
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Old Mar 21, 2009 | 12:14 PM
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Originally Posted by shbox
You need a wiring diagram to chase for faults on wiring and components that are on the fuse you replaced (whichever it was).
i believe its the fuse for the #1 coolant fan inside the engine compartment
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