What causes GM code 36?

Contaminated MAF sensor sensing wire Air duct leak between the sensor and throttle body Failed MAF sensor power or ground feed On some models a 24X crank sensor fault uses this same code

How do I fix GM code 36?

Inspect the air duct for cracks and loose clamps first Clean the MAF sensing wire only with approved MAF cleaner Check sensor power and ground with a meter Compare MAF grams per second readings to specification at idle On 24X equipped models test the crank sensor as the alternate cause

36 MAF Sensor Error

Q: What does GM code 36 mean?

GM code 36 — MAF Sensor Error. Applies to 1986-1995 GM cars with MAF, Corvette, Camaro, 3800 V6 models.

Make: GM (1982-1995)
Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: 1986-1995 GM cars with MAF, Corvette, Camaro, 3800 V6 models

How to read it

Code 36 reads as 3 flashes, pause, 6 flashes on the check-engine light. Jump terminals A and B on the ALDL connector with the key off, then turn the key on with the engine off and count the check-engine flashes.

What does GM code 36 mean?

36 — MAF Sensor Error. This code sets when your vehicle computer detects maf sensor error.

Common causes of 36

Contaminated MAF sensor sensing wire
Air duct leak between the sensor and throttle body
Failed MAF sensor power or ground feed
On some models a 24X crank sensor fault uses this same code

How to fix 36

Inspect the air duct for cracks and loose clamps first
Clean the MAF sensing wire only with approved MAF cleaner
Check sensor power and ground with a meter
Compare MAF grams per second readings to specification at idle
On 24X equipped models test the crank sensor as the alternate cause