
Originally Posted by
LauraSVT
FWIW -- if you're only getting this symptom when you put your boot deep into the throttle, you may have a mass air flow sensor (MAF) concern. This will not kick a check engine light.
Try squeezing the accelerator gently -- you may able to get the car to accelerate slowly, progressively without hesitation. Now nail the throttle (you can do all of this, say, around 35-40 mph in 3rd gear) -- if the car bucks now, you're probably looking at a MAF failure.
All is not lost, though. Grab a can of $10 mass air sensor cleaner at the auto parts store, pull the air filter out, and remove the entire MAF housing. Spray a good solid snort full of the cleaner at the MAF wire (don't be shy), being very careful not to let anything else touch it. Let it dry, throw it back in, button up the filter, and fire the car up (it may stumble a touch, but will start and idle smoothly). Take 'er for a rip -- see if this cures your problem.
Occasionally, the wire gets gummed up -- thus, the computer can't tell how much air is entering through the filter, and it can't meter the right amount of fuel. Often, the failure is on the starvation side -- too little, not too much fuel, hence the buck, or blip, or spot where nothing happens under throttle. The MAF is constantly reporting back to the computer, so you should not have to bother with resetting -- the table should update just fine in open loop strategy.
Hope this cures it -- take care.
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