1989 corvettes code 34 and 36
Oct 11, 2024 | 05:00 PM
Thread Starter
5th Gear
Joined: Feb 2024
Posts: 5
Likes: 0
1989 corvettes code 34 and 36
Hey guys my 1989 corvette is throwing up codes 34 and 36. It’s also having a rough time accelerating. I’m hoping to find out if these issues are related and what could possible reasons be.
Oct 11, 2024 | 05:46 PM
Melting Slicks
Joined: Aug 2011
Posts: 2,844
Likes: 176
What’s gps does the ecm show the maf is reporting at idle ?
Oct 11, 2024 | 11:01 PM
Thread Starter
5th Gear
Joined: Feb 2024
Posts: 5
Likes: 0
Quote:
Originally Posted by
Tunedport90
What’s gps does the ecm show the maf is reporting at idle ?
I don’t have a scanner to test that however I did use MAF sensor cleaner and it is running significantly better however not at its best. I’m thinking the MAF sensor might be bad. Additionally it might be worth mentioning that it says my average MPG is 99
Oct 12, 2024 | 11:04 AM
Drifting
Joined: Jan 2021
Posts: 1,312
Likes: 383
From: Northern California
The only time I have seen MPG at 99 is when I've seen an ECM failure. Others can confirm / chime in.
Oct 13, 2024 | 07:56 PM
Thread Starter
5th Gear
Joined: Feb 2024
Posts: 5
Likes: 0
Yea if anyone can confirm if this is an issue with the ECM or how to troubleshoot ECM that would be awesome
Oct 13, 2024 | 08:04 PM
Melting Slicks
Joined: Aug 2011
Posts: 2,844
Likes: 176
What does the fsm trouble tree lead towards?
Oct 13, 2024 | 08:36 PM
Thread Starter
5th Gear
Joined: Feb 2024
Posts: 5
Likes: 0
Quote:
Originally Posted by
Tunedport90
What does the fsm trouble tree lead towards?
I just bought it so I will look into it.
Oct 14, 2024 | 11:35 AM
Team Owner
Joined: Sep 2001
Posts: 62,141
Likes: 1,729
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Follow the FSM procedure, it will likely point to MAF or MAF relays, of which there are 2 behind the battery on the firewall.
If you replace the MAF itself, you should go ahead and replace the relays with it.
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Oct 14, 2024 | 11:54 PM
Advanced
Joined: Mar 2022
Posts: 73
Likes: 6
36 should be burnoff relay