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

Help with DTCs: 26, 77 and 83

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Old Oct 9, 2004 | 08:02 PM
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sideways_Into_3rd's Avatar
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Help with DTCs: 26, 77 and 83

26 is CCP fail, carbon canister purge I assume ?
77 is Fan 1 fail
83 is Reverse inhibit solenoid fail

All of these codes showed up at once and car started to run like anus (which i think may be a burnt wire)

any can see why these 3 codes would appear altogher ? any correlation ? anyone seen any of these before or dealt with them ?
Old Oct 9, 2004 | 08:24 PM
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Re: Help with DTCs: 26, 77 and 83

They are all on the same fuse. Your O2 heaters would be out, too. Check fuse #6 under the hood.
Old Oct 9, 2004 | 08:34 PM
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Re: Help with DTCs: 26, 77 and 83

You are god

I'll go check on that right away

could the O2 heater thing be related to the fact that i was running around with the biggest exhaust leak from my headers for a month (missing 3 bolts in teh back )

should i look into getting new O2s ?

Last edited by sideways_Into_3rd; Oct 9, 2004 at 08:40 PM.
Old Oct 9, 2004 | 08:44 PM
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Re: Help with DTCs: 26, 77 and 83

The fact that you had an exhaust leak should not affect the heating circuit. A burned wire on the headers is a common cause of this fuse getting blown.
Old Oct 9, 2004 | 08:49 PM
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Re: Help with DTCs: 26, 77 and 83

Originally Posted by shoebox
The fact that you had an exhaust leak should not affect the heating circuit. A burned wire on the headers is a common cause of this fuse getting blown.

makes sense .. voltage going throuh a spark wire is a tad over 12V

i'll look into the fuse the the wire asap

but the O2 is ok you say
Old Oct 9, 2004 | 10:58 PM
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Re: Help with DTCs: 26, 77 and 83

Originally Posted by sideways_Into_3rd
makes sense .. voltage going throuh a spark wire is a tad over 12V

i'll look into the fuse the the wire asap

but the O2 is ok you say
I was referring to a burned wire to the O2 sensor-just to clarify. If it is on the sensor side of the connector, it would be better to replace the sensor.
Old Oct 9, 2004 | 10:59 PM
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Re: Help with DTCs: 26, 77 and 83

hmm .. i thought u mean the spark from the burnt plug wire is jumping on the header and going through to the O2 heater causing the fuse to blow
Old Oct 9, 2004 | 11:03 PM
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Re: Help with DTCs: 26, 77 and 83

Originally Posted by sideways_Into_3rd
hmm .. i thought u mean the spark from the burnt plug wire is jumping on the header and going through to the O2 heater causing the fuse to blow
No, but that is very creative thinking.




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