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MAF or EGR..?

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Old 01-07-2009, 08:31 AM
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MAF or EGR..?

Ok today was on my way home from an interview (got the job) and as i was coming down express way i was trying to accelerate which it did but was slightly sluggish..so i wrinkled my face looked at my shifter looked at my feet as most of us do when we feel something wrong...and maybe 2 miles down the road my engine light came on..went to the next auto parts store used the obd and got the codes p0400 and p0325..which is my MAF EGR and a possible knock sensor...i know the maf will have to replaced asap..but i think us 5spd guess usually never know when our knock sensors go out cause it isnt as noticable and the autos feel it right away when thers go out..what to do i need a cheap fix if possible
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Old 01-07-2009, 08:38 AM
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Not sure what you mean, because P0400 is EGR code. Really has nothing to do with the MAF. EGR valve stuck open could cause both the code & the driveability issues though.
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Old 01-07-2009, 08:48 AM
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Originally Posted by oldngivout
Not sure what you mean, because P0400 is EGR code. Really has nothing to do with the MAF. EGR valve stuck open could cause both the code & the driveability issues though.
thats the code that came up oh yea mind you it was a really cheap obd they let me use i went to advance auto
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Old 01-07-2009, 09:32 AM
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so where u work now??

anyways, i highly doubt you'd feel anything from an EGR code, i had one forever until i finally found the right part to replace. its not as simple to diagnose. I vote for knock sensor! I felt a huge difference when i first changed mine out.

and whats wrong wrong with Advance auto scanners??

Last edited by MaximaSpd85; 01-07-2009 at 09:39 AM.
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Old 01-07-2009, 09:33 AM
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well, if your maf was shot then it would be a real noticable difference in driving. I'm going to say it's the EGR, especially since thats the code that came up.
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Old 01-07-2009, 09:45 AM
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Originally Posted by MaximaSpd85
so where u work now??

anyways, i highly doubt you'd feel anything from an EGR code, i had one forever until i finally found the right part to replace. its not as simple to diagnose. I vote for knock sensor! I felt a huge difference when i first changed mine out.

and whats wrong wrong with Advance auto scanners??
it was a piece i went to the one on summit it wa the really small yellow one they gave me to use..but i work at jimmy johns and mail express
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Old 05-13-2010, 12:51 PM
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just clean the EGR valve, tubes and temp sensor for it and replace knock sensor. don't forget to clean the EGR temp senor. i got to re do mine cause i din't clean that part of it.
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Old 05-13-2010, 02:40 PM
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hey organ, you need to check the dates before you post buddy.
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