Runs Poorly, Possible Check Engine Light on Mazda B4000

A dirty, or contaminated mass airflow sensor (MAF) can cause the engine to run poorly. The Check Engine Light may or may not illuminate.  MAF sensor related fault codes P0102 and/or P0103 may be stored. In some cases, carefully cleaning the sensor element will fix the problem. If not, replacement of the sensor may be required.

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Average mileage: 136,000 (136,000–136,000)
16 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
17 people reported this problem
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problem details
1996 Mazda B4000 136,000 mi,
Idles ok, but misses when under load, code says 3 & 4 missing, changed plugs ,wires, injectors, What now ?