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 Codes P0102 and P0300

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L67
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Name : Matt
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PostSubject: Codes P0102 and P0300   Wed Jul 25, 2007 12:13 pm

My dad and i just ran the computer and it gave us two problem codes. P0102 and P0300. P0102 said MAF or VAF Circuit Low input. P0300 said Random Multiple Misfire Detected. Anyone know what parts we should check or what to fix according to these codes? thanks.
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oldsman105
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Name : Enrique Patino
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PostSubject: Re: Codes P0102 and P0300   Wed Jul 25, 2007 12:32 pm

Check wiring on maf sensor and clean the sensor. Check your plugs, plug wires and coils.
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NO 4 EVR
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PostSubject: Re: Codes P0102 and P0300   Wed Jul 25, 2007 2:10 pm

P0300 could mean bad gasoline. because it is a random misfire and not a specific cylinder(s).
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Mr.Riviera
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PostSubject: Re: Codes P0102 and P0300   Wed Jul 25, 2007 11:30 pm

clean the MAF. use either MAF cleaner or stp throttle body cleaner.
did you install a K&N filter recently?

_________________
1996 with 244k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
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L67
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PostSubject: Re: Codes P0102 and P0300   Thu Jul 26, 2007 1:20 pm

Nope i haven't installed anything yet.
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Jason
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PostSubject: Re: Codes P0102 and P0300   Fri Jul 27, 2007 11:05 am

P0300 (random multiple misfire) can be a lot of things. Aside from the plugs (condition & gap), wires, coilpack mentionned by oldsman, I would definitely check the maf 1st as they can be related. Then the fuel filter and check for a vacuum leak.

to clean your maf sensor, remove the 2 torx (torx security 20) screws from the top of the sensor. Pull it out and spray the really small elements inside with MAF cleaner (I use contact cleaner). I mean really douse them with it. Use the pressure from the can to dislodge all dirt. They get pretty dirty over time, especially if you use a k&n filter as most people over oil them.
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Mr.Riviera
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PostSubject: Re: Codes P0102 and P0300   Fri Jul 27, 2007 11:10 am

do not touch the elements b/c they are sensitive and a new maf can run about $200-$400 depending on your year. (dealer wanted over 400 for a MAF for my 96 frown b/c ours is different than the 97+ )
let us know if that fixes it.

_________________
1996 with 244k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
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L67
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PostSubject: Re: Codes P0102 and P0300   Fri Jul 27, 2007 1:11 pm

Alright i'll prolly be lookin at it tomorrow afternoon, thanks.
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L67
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PostSubject: Re: Codes P0102 and P0300   Sun Jul 29, 2007 12:26 am

I cleaned the MAF today and the codes dissappeared, thanks again.
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racinfan
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PostSubject: Re: Codes P0102 and P0300   Sun Jul 29, 2007 2:15 am

Simple fixes are the best!clap
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