MAF sensor crapping out
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MAF sensor crapping out
My rpms have been moving around some while I'm coasting in my car and my idle has been a tad on the rough side. So today I had some time so I pulled the sensor and cleaned it per directions in Tech info seems like it helped some but not enough. I got some dirt off of it, but it appears I do need a new one. I tried to find one on GMPD but the part # turnd up nothing. I was wondering where is the can I buy a good quality replacement for online? Or anyother place that would be cheaper then in store retail?
Ed
Ed
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Re: MAF sensor crapping out
Originally Posted by McGrath
My rpms have been moving around some while I'm coasting in my car and my idle has been a tad on the rough side.
What do you mean by moving around while coasting? Like a good 500-1000 RPM fluctuation?
If that'* the case, once in a while I have the same issue, especially coasting down hill. When the RPM'* drop and the trans will slow down the car, then all the sudden the idle kicks up and the car almost feels like it'* free wheeling?
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My boost gauge reads -10 at idle and doesn't move (I know the stock boost gauge isn't the most accurate around), my vac lines look pretty good. I recently replaced a dry rotted connector but that was for the evap system. What else could be causeing my rpms to drop & then rasie again while coasting?
Ed
Lakeville It doesn't move more then 1k nor does it feel like the trans is slowing the car down. Speed at which I'm moving doesn't seem to affect the rpms moving around much, except when I'm on the freeway it'* not so noticeable. The rpms will normally drop then not even a second later they pick back up, It acts like the engine is starved for air for just a split second.
Ed
Lakeville It doesn't move more then 1k nor does it feel like the trans is slowing the car down. Speed at which I'm moving doesn't seem to affect the rpms moving around much, except when I'm on the freeway it'* not so noticeable. The rpms will normally drop then not even a second later they pick back up, It acts like the engine is starved for air for just a split second.
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Originally Posted by McGrath
My boost gauge reads -10 at idle and doesn't move
You either have a disconnected, faulty, or leaky sensor, or your boost is constantly in bypass.
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Originally Posted by willwren
Originally Posted by McGrath
My boost gauge reads -10 at idle and doesn't move
You either have a disconnected, faulty, or leaky sensor, or your boost is constantly in bypass.
Bill the rpms normaly drop about 500-600rpms and when they do drop it sounds like the motor wants to die for a split second. They always pick back up very quick but many times the rpms will drop from say 1'500 to about 900-1000 when I'm just coasting down the road. Anytime they drop and I touch the gas they pick right up, almost like I'm waking the motor up from the little nap it wants to take.
#9
I had to replace a MAF about a month ago. It was $100 (something) at Napa.
My car would not idle, the RPM would get down almost to the bottom, and the car would die if I didn't hit the gas. The check engine light came on as soon as the problem started. I replaced the part, and didn't have the problem anymore.
I have a 99 SE
My car would not idle, the RPM would get down almost to the bottom, and the car would die if I didn't hit the gas. The check engine light came on as soon as the problem started. I replaced the part, and didn't have the problem anymore.
I have a 99 SE
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Originally Posted by vanalan78
I had to replace a MAF about a month ago. It was $100 (something) at Napa.
My car would not idle, the RPM would get down almost to the bottom, and the car would die if I didn't hit the gas. The check engine light came on as soon as the problem started. I replaced the part, and didn't have the problem anymore.
I have a 99 SE
My car would not idle, the RPM would get down almost to the bottom, and the car would die if I didn't hit the gas. The check engine light came on as soon as the problem started. I replaced the part, and didn't have the problem anymore.
I have a 99 SE
Someone please suggest something else to check; thanks.
Ed
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