sr20 retop maf problem help needed

[ke70 sr20det]

hi recently my car was perfectly fine running after the swap for about 1.5 year and been driving the engine from 2007 from my silvia no issue ... past two days the car starts perfectly fine idles perfectly fine but between 1500 to 3000 or 4000 rpms (no tacho) car missing alot after that goes all way up to red line

when i unplug or plug maf it idles same 800 to 900 rpms very normal checked everything no clue except this

feedback is appriciated zilvians

[0wn3r]

hi recently my car was perfectly fine running after the swap for about 1.5 year and been driving the engine from 2007 from my silvia no issue ... past two days the car starts perfectly fine idles perfectly fine but between 1500 to 3000 or 4000 rpms (no tacho) car missing alot after that goes all way up to red line

when i unplug or plug maf it idles same 800 to 900 rpms very normal checked everything no clue except this

feedback is appriciated zilvians

Based on your searches of MAF problems throughout the forum, what have you done so far to try and correct the problem?

Have you, sprayed the sensor with MAF cleaner?