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.
Runs Poorly, Possible Check Engine Light on Mazda B4000
Average mileage: 136,000 (136,000–136,000)
17 people reported this problem
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1996 Mazda B4000 136,000 mi, Visitor
Idles ok, but misses when under load, code says 3 & 4 missing, changed plugs ,wires, injectors, What now ?