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

OMG This code36 is driving me crazy HELP!

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Old Aug 13, 2008 | 09:57 AM
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Default OMG This code36 is driving me crazy HELP!

Ok this this is making me nuts!!!!. Here are my latest symptoms.
First off, I just had the Opti replaced with a new one, also the ignition control module has been replaced. The car will start and run fine, sometimes it will die right away, sometimes it will run for 20 minutes and die, length of time seems to vary, but it will always start right back up. Here's where it gets confusing, no matter how long it runs, i does not always leave a code after it dies, sometimes it will ( code 36 when it does) and sometimes it won't drop a code. Either way the car will restart and run, if it sets a code the SES light will be on when i restart the car it runs either with the SES light on or not. I have checked grounds, the wiring harness from the opti to the test connection under the fuel rail and all is good there. The only thing i have not changed is the coil?? I appricate the advice!!
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Old Aug 13, 2008 | 11:46 AM
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Originally Posted by QBLU92
Ok this this is making me nuts!!!!. Here are my latest symptoms.
First off, I just had the Opti replaced with a new one, also the ignition control module has been replaced. The car will start and run fine, sometimes it will die right away, sometimes it will run for 20 minutes and die, length of time seems to vary, but it will always start right back up. Here's where it gets confusing, no matter how long it runs, i does not always leave a code after it dies, sometimes it will ( code 36 when it does) and sometimes it won't drop a code. Either way the car will restart and run, if it sets a code the SES light will be on when i restart the car it runs either with the SES light on or not. I have checked grounds, the wiring harness from the opti to the test connection under the fuel rail and all is good there. The only thing i have not changed is the coil?? I appricate the advice!!
I had a code 35 on an '89 that the dealer and previous / original owner couldn't fix. At someone's suggestion I replaced all of the relays (needed an FSM to find them all) and no more code 35.
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Old Aug 13, 2008 | 12:06 PM
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Don't know what year? Mines an 87, and the FSM says code 36 is a MAF burn off circuit. You should follow the trouble shooting guide to eliminate the 36, relays are fairly cheap, and can cause an intermittent, bad connections can do the same. I'd also check the coolant temp sensor. Both of these can cause a fuel delivery problem.
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Old Aug 13, 2008 | 12:20 PM
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Originally Posted by rick lambert
Don't know what year? Mines an 87, and the FSM says code 36 is a MAF burn off circuit. You should follow the trouble shooting guide to eliminate the 36, relays are fairly cheap, and can cause an intermittent, bad connections can do the same. I'd also check the coolant temp sensor. Both of these can cause a fuel delivery problem.
1992..Code36 is faulty high res code for the Optispark!
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Old Aug 13, 2008 | 01:11 PM
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New or not optis are bad out of the box. Unless you Oscope the signal and record it to see what happens( then it may show a bad opti anyway) replacing the opti is about all you can do. Personally I don't get the opti denial I have seen around here lately" I got a code 36 or 16 what else can it be?" except in the very rare case of wiring issue or ecm nothing else.
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Old Aug 13, 2008 | 06:25 PM
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I had a code 36 and it called for replacement of the MAF burn circuit sensor...its and '89...be carefull...there are two...two trips to the parts store and I am fine...I used Standard Ing.Parts..
Arnie
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Old Aug 13, 2008 | 09:03 PM
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Originally Posted by REZ1
I had a code 36 and it called for replacement of the MAF burn circuit sensor...its and '89...be carefull...there are two...two trips to the parts store and I am fine...I used Standard Ing.Parts..
Arnie
Uh his is not an 89 it is a LT1
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Old Aug 14, 2008 | 10:15 AM
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Ttt
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Old Aug 15, 2008 | 10:53 AM
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Originally Posted by QBLU92
Ttt
You have a cool forum name!
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Old Aug 22, 2008 | 09:40 AM
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Originally Posted by Redeasysport
Uh his is not an 89 it is a LT1
And I suppose they eliminated all of the relays on the LT1?
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Old Aug 22, 2008 | 10:28 AM
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Originally Posted by 89er
And I suppose they eliminated all of the relays on the LT1?
No but a code 36 is the high res opti signal not MAF in a LT1
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Old Aug 22, 2008 | 07:20 PM
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Originally Posted by Redeasysport
No but a code 36 is the high res opti signal not MAF in a LT1
I never said it was an MAF. All I was saying is when you start to go crazy because nothing is making sense, check the relays.

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Old Aug 23, 2008 | 07:38 AM
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There's a service manual update for DTC 36.

PM me Blade_1 at http://www.corvette-guru.com/modules...um.php?forum=1
for a copy...
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Old Aug 23, 2008 | 04:29 PM
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Which opti did you buy?

Redeasy is right, many are bad right out of the box unfortunately.

I've had great luck with Dynspark
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