Code 36 on a 1986
Thread Starter
Drifting
Joined: Oct 2001
Posts: 1,770
Likes: 33
From: Cohasset MN
2017 Corvette of the Year Finalist
2016 C1 of Year Finalist
Code 36 on a 1986
I just took the '86 out today after winter storage. It ran fine initially, but after I turned it off for about an hour, the SES light came on when I started it again. I checked the code and found a code 36, indicating the MAF burn off relay. I disconnected the relay, cleaned the contacts with electronic spray cleaner and reconnected the relay. The light stayed off.
The is exactly what happened last spring when I took it out of winter storage. Same problem, same solution. Do you think it is the relay or the connections? I have replaced the relay before.
The is exactly what happened last spring when I took it out of winter storage. Same problem, same solution. Do you think it is the relay or the connections? I have replaced the relay before.
Safety Car
Joined: Jan 2004
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Race Director
Joined: Apr 2002
Posts: 10,036
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From: Anaheim CA
One thing to watch for on '86s is that the MAF power and burnoff relays are different but have the same type of connector. It's easy to get the connectors plugged into the wrong relay. If you do that the engine will run OK but the burnoff function will not happen. The MAF wire will get dirty and then the engine will not run well.
You can tell the connectors apart because the burnoff relay has fewer wires (no wire in cavity D).
The numbers are marked on the relays:
10094701 (AC Delco 212-305) MAF burnoff relay
10067925 (AC Delco 212-300) MAF power relay
You can tell the connectors apart because the burnoff relay has fewer wires (no wire in cavity D).
The numbers are marked on the relays:
10094701 (AC Delco 212-305) MAF burnoff relay
10067925 (AC Delco 212-300) MAF power relay
Thread Starter
Drifting
Joined: Oct 2001
Posts: 1,770
Likes: 33
From: Cohasset MN
2017 Corvette of the Year Finalist
2016 C1 of Year Finalist
Vettoz:
I have FSM and did run the diagnostics as you suggested last year when this happened. Everything checked out normal.
My guess is that after sitting five months in storage, there might have been a little corrosion form on the connections.
At any rate, everything is OK now.
I have FSM and did run the diagnostics as you suggested last year when this happened. Everything checked out normal.
My guess is that after sitting five months in storage, there might have been a little corrosion form on the connections.
At any rate, everything is OK now.
