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P0102 code not going away help!!!

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Old 02-21-2011, 08:53 PM
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Default P0102 code not going away help!!!

I have a 2002 z28 35th anniversary camaro and it has just recently started studdering at a low rpm (under 2800 rpm) the code its throwing is a P0102 which is a MAF sensor code and i changed the MAF and it didnt fix a thing. I really need help if you have any ideas please post up

Last edited by 02 Camaro; 02-21-2011 at 09:18 PM.
Old 02-22-2011, 08:43 AM
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http://www.obd-codes.com/p0102

I'd first check the voltage at the connector to the MAF.
Old 02-24-2011, 11:47 AM
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Check the ENG SEN fuse too if you're getting any other codes for something on that circuit.
Old 02-24-2011, 06:24 PM
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You don't perhaps have an over-oiled K&N air filter do you? It happens.....
Old 02-24-2011, 09:41 PM
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I have checked all the fuses, changed the MAF sensor, and cleaned the filter... The only thing i can think of is the slp lid is messing with the computer
Old 02-25-2011, 10:29 AM
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Did you read the link above? Your problem is electrical - not mechanical. (BTW - The only way your lid would be an issue is if a dead animal, etc. were in there and blocking airflow.) If you changed the MAF, then you have a cut or unplugged wire somewhere.

You should start measuring the voltage at the sensor plug and then work your way back through the circuit until you find the break.
Old 02-25-2011, 11:56 AM
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I checked the connector and i was getting current through one wire but the other 2 were dead and i checked the wires to the back of the manifold and i didnt find any breaks
Old 02-25-2011, 03:50 PM
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Three wires:
Yellow - Sensor Signal
Black/White - Ground
Pink - Ignition Feed

With the ignition on but the engine off, you should see 5V between the Yellow and Black/White wire.

The factory manual has a very long procedure for testing the circuit, which involves testing the PCM and electrical frequency from the sensor, etc.

The manual also says that the code can be set by:
- Broken wires
- Engine vacuum leaks
- PCV leaks
- An incorrect PCV valve
- Missing engine oil fill cap
- Unseated engine oil dipstick
Old 02-26-2011, 02:29 PM
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the unseated oil dipstick would cause that? That might be it
Old 02-26-2011, 11:36 PM
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Not sure - maybe the opening in the crankcase throws off the MAP sensor and the code is thrown when the MAP and MAF are out of balance.

Do you have your dipstick in? When was the last time you changed your PCV?
Old 02-27-2011, 07:13 PM
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I just did headers on my car and when i put the dipstick back in the bolt on the head wasnt going in all the way.... I bought the car 3 weeks ago so idk when the PCV was last changed
Old 02-28-2011, 12:22 AM
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Just pull out the PVC valve and shake it. If it feels gummed up, time for a new one. Either of those could be your issue, it looks like.
Old 02-28-2011, 02:12 AM
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or the entire PCV hose system could be crapped out.........mine was.......now i have the LS6 valley cover
Old 03-01-2011, 12:26 PM
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I checked all the hoses and they were perfectly ok .... im out of options
Old 03-01-2011, 12:42 PM
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Originally Posted by wssix99
Three wires:
Yellow - Sensor Signal
Black/White - Ground
Pink - Ignition Feed

With the ignition on but the engine off, you should see 5V between the Yellow and Black/White wire.

The factory manual has a very long procedure for testing the circuit, which involves testing the PCM and electrical frequency from the sensor, etc.

The manual also says that the code can be set by:
- Broken wires
- Engine vacuum leaks
- PCV leaks
- An incorrect PCV valve
- Missing engine oil fill cap
- Unseated engine oil dipstick

http://www.ls2.com/boggs/dtcs/DTC%20P0102.htm




.
Old 03-01-2011, 04:28 PM
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I might have solved the problem
Old 03-02-2011, 11:26 AM
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Originally Posted by 02 Camaro
I might have solved the problem
How's that?
Old 03-02-2011, 11:34 PM
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Turns out that the eng. sen fuse was bad... thats the last time i let my friends help me ...

Thanks for all the help



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