Re: ROUGH STARTS H2??HELP!!!
Could also be the Mass air flow sensor, the sensor on the intake. It monitors the amounts of humidity in the air as it goes into the engine. This in turn, controls how the cars computer mixes air and fuel, and can cause the vehicle to run rich or light. The other thing it could be, is a leak in the air intake manifold. The only way to tell if this is the case, is to go to a mechanic with a smoke machine, and have them test for it. I went through all of this already with mine, and after replacing the mass air flow sensor and checking everything else, it ended up being a small air leak in the intake manifold. The symtoms were similar, rough starts, RPM's fluctuating up and down in idle, loss of power over accelleration. The repair wasn't that bad on cost either.
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Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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