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04 grand am surging,replaced maf sensor
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klift1
New User
Oct 29, 2012, 2:17 PM
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04 grand am surging,replaced maf sensor
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I have replaced gas cap and MAF sensor. Reset light with scantool. still shows low air flow. Checked for vac leaks on hoses. Changed plugs and wires, no change. Possible emission control problem? still surging from 650-725 rpm, trans shifting hard at same time light came on. No other codes show up.
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Hammer Time
Ultimate Carjunky
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Oct 29, 2012, 3:04 PM
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Re: 04 grand am surging,replaced maf sensor
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What is the exact code number PO401 maybe?
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klift1
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Oct 29, 2012, 3:15 PM
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Re: 04 grand am surging,replaced maf sensor
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The code was P08 low air flow to MAF sensor
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Hammer Time
Ultimate Carjunky
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Oct 29, 2012, 3:18 PM
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Re: 04 grand am surging,replaced maf sensor
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No such code. One letter with 4 numbers
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nickwarner
Veteran
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Oct 29, 2012, 6:04 PM
Post #5 of 8
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Re: 04 grand am surging,replaced maf sensor
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What engine do you have anyway?
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Discretesignals
Ultimate Carjunky
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Oct 29, 2012, 6:30 PM
Post #6 of 8
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Re: 04 grand am surging,replaced maf sensor
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Maybe P0108?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Hammer Time
Ultimate Carjunky
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Oct 29, 2012, 6:36 PM
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Re: 04 grand am surging,replaced maf sensor
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(MAP) Manifold Absolute Pressure/(BARO) Barometric Pressure Sensor -Circuit High
Input
You have a problem with the MAP sensor circuit voltage signal too high, not the MAF and not the EVAP.
That could be a bad sensor, lack of vacuum to the sensor or any of the related wiring.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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Oct 29, 2012, 6:57 PM
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Re: 04 grand am surging,replaced maf sensor
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It must be a 3.4L because 2.2L(F) doesn't use plug wires.....
Oh wait a minute...let me plug my special scan tool in...LOL
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Oct 29, 2012, 7:02 PM)
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