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Old 03-01-2019, 04:02 PM #1
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97 to 99 maf swap now check engine light??

I did a maf swap to 99 now i have a p0171 lean code. Anyone has the same experience. Check tube for crack, clean new maf sensor. Light come on about a day later.
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Old 03-01-2019, 04:42 PM #2
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Nope. Either you really do have a vacuum leak somewhere in the new intake or the sensor is no bueno. I'm guessing you already looked up the wiring change that you need to do on the connector?
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Old 03-01-2019, 05:39 PM #3
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Quote:
Originally Posted by Jaysen4runner View Post
I did a maf swap to 99 now i have a p0171 lean code. Anyone has the same experience. Check tube for crack, clean new maf sensor. Light come on about a day later.
Apologies for the noob question - but just curious what the benefit of this swap would be? Better fuel economy? More power?
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Old 03-01-2019, 07:57 PM #4
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Apologies for the noob question - but just curious what the benefit of this swap would be? Better fuel economy? More power?
If your MAF fails, the newer style ones can be had new for about $60.00, as opposed to $400.00 for the old turbine style. It's an easy swap if you can also get your hands on a 99+ air box.

For those of us that have a supercharger that craves more air flow, yes it's about power.
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Old 03-01-2019, 08:02 PM #5
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Thank you guys! Found the problem, the part number was wrong on the mass air flow sensor. Part number from evay Denso 22010 wrong, correct 21010. I know some or you guys are familiar with some previous post on the right maf!
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Old 03-01-2019, 08:03 PM #6
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If your MAF fails, the newer style ones can be had new for about $60.00, as opposed to $400.00 for the old turbine style. It's an easy swap if you can also get your hands on a 99+ air box.

For those of us that have a supercharger that craves more air flow, yes it's about power.
I just change the air tube part from a Volvo instead of the while box! Yes i readed one of your previous posts on the right maf sensor from ebay!😁
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Old 03-01-2019, 08:07 PM #7
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I just change the air tube part from a Volvo instead of the while box! Yes i readed one of your previous posts on the right maf sensor from ebay!😁
Glad you caught it! I'm surprised it actually ran with the wrong part number, the ECU was probably seeing voltage readings that were out of normal operating range.
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Old 03-01-2019, 09:30 PM #8
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@gamefreakgc glad we have guys like you in here to give out good informations!
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Old 03-02-2019, 03:24 AM #9
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@gamefreakgc glad we have guys like you in here to give out good informations!


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