Mass Air Flow Sensors
GM used various sensors across its vehicle platforms. The 99+ Vortec trucks used a 5-wire sensor with a built in Air Temp Sensor. The LS1 Camaro/Trans am had a 3-wire sensor, with an external separate air temp sensor. Also note that the Vortec 5.3/6.0 engines from Express Vans had a much smaller mass airflow sensor.
AC DELCO GM PARTS DIRECT.COM
PART# PART# DESC 3000HZ gm/sec 6000HZ gm/sec 12000 HZ gm/sec
213-4221 15926193 Express Van 03-07 4.8/5.3/6.0 4.961 39.492 361.695
213-4160 15904068 Silverado 99-07 all engine gas 8.063 55.016 453.688
" " Avalanche 02-06 all engine gas " " "
" " Trailblazer 5.3 " " "
" " Corvette LS1 01-04 " " "
" " Corvette 6.0 05-08 " " "
" " Hummer H2 03-06 " " "
213-353 25179711 Camaro v8 LS1 1998-02 10.43 63.875 439.203
" " Corvette LS1 97-00 " " "
213-1150 25341604 Corvette LS6 01-04, SSR 03-06 8.383 56.398 470.828
In the above table, I have just used reference points to note the differences in the sensors at a set frequency. It is possible to use ANY mass airflow sensor on any engine, however the PCM needs programmed with the correct MAF calibration data.
MAF sensors (affiliate links — supports the site at no extra cost to you)
- Express Van 03–07 4.8/5.3/6.0 — ACDelco 213-4221 / GM 15926193 — find on Amazon →
- Silverado 99–07, Avalanche, Trailblazer 5.3, Corvette LS1 01–04 / 6.0 05–08, Hummer H2 — ACDelco 213-4160 / GM 15904068 — find on Amazon →
- Camaro LS1 98–02, Corvette LS1 97–00 — ACDelco 213-353 / GM 25179711 — find on Amazon →
- Corvette LS6 01–04, SSR 03–06 — ACDelco 213-1150 / GM 25341604 — find on Amazon →
Running a different MAF than stock? Any sensor works — but the PCM needs the correct MAF calibration. Get it tuned →
Running a different MAF than stock? Any sensor works — but the PCM needs the matching MAF calibration or it'll run badly.