Re: 2003 H2 poor acceleration when cold & warm
Unplug your maf sensor and try it, you will set codes but that will determine if maf is reading incorrectly. If its better you need maf sensor.
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1987 Jeep YJ 403hp sbc 653hp on NOS
1998 Chev Z71
2007 Chev Trailblazer SS
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