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Problems with sensors and NX MAF KIT

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Old Aug 17, 2004 | 12:48 PM
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Question Problems with sensors and NX MAF KIT

I just got a NX MAF kit installed on a 02 Trans Am, used it once, and the car came back with a check engine light, got it checked, and its the front 02 sensors, and the Mass Airflow sensor, got the errors cleared, but how can i fix this so it wont happen again. Dont want to delete the sensors with ls1 edit, trying to find a fix. thanks

Joe
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Old Aug 18, 2004 | 01:11 PM
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anybody?
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Old Aug 26, 2004 | 09:59 AM
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ttt asap
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Old Aug 26, 2004 | 10:02 AM
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Im lost on this one.Come on guys I know some one can help him.
Dave
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Old Aug 26, 2004 | 10:15 AM
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Wait you sprayed it once and all of a sudden you got these error codes? What were the actual error codes? I wouldnt think you could or if you could that it would be a great idea to delete your front o2 sensors? Am I wrong on this ?

CMC
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Old Aug 26, 2004 | 10:23 AM
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What where your OBDII codes?
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Old Aug 27, 2004 | 01:04 PM
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Dont know exactly but ill write them down next time, found out the car was running lean so i changed the fuel filter, and i checked the bottle pressure and everything, and the sensor came on again, not sure but i think it might be a electrical problem, is anybody else running a msd window switch with this setup. thanks guys on the info
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Old Aug 27, 2004 | 01:06 PM
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oh, the codes came on after i sprayed again at a local dyno... car dynoed 331hp\350tq and then 329\248 on juice.
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Old Aug 27, 2004 | 01:46 PM
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Originally Posted by ls1pepito
oh, the codes came on after i sprayed again at a local dyno... car dynoed 331hp\350tq and then 329\248 on juice.
Sounds like you aren't getting any nitrous, just a shot of extra fuel. You could have run really fat and fouled your O2's. Sounds like you need to test your noids and check your grounds.
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Old Aug 27, 2004 | 02:20 PM
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This may be a dumb question but I have to ask.

Is the MAF assembled correctly or backwards? I mean, with it in the car, does it spray twards the air filter or the throttlebody?
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Old Sep 4, 2004 | 11:43 PM
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Found out what the problem was, seems like the MSD window switch in not getting enough voltage, and for that reason, only fuel was being added to the car, so that threw the 3 codes, will call MSD on Tues or if anybody knows how to fix this problem car dynoed 331/350 with 100 shot it dynoed 430/480. Happy with the numbers! Thanks guys for all the info, really did help, thanks a bunch!!!
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Old Sep 10, 2004 | 05:24 PM
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Originally Posted by ls1pepito
Found out what the problem was, seems like the MSD window switch in not getting enough voltage, and for that reason, only fuel was being added to the car, so that threw the 3 codes, will call MSD on Tues or if anybody knows how to fix this problem car dynoed 331/350 with 100 shot it dynoed 430/480. Happy with the numbers! Thanks guys for all the info, really did help, thanks a bunch!!!
Chalk another one up to the 5v Square Wave Signal...
I had a similar problem. Had to have mine sent in and converted to read the LS1 PCM tach signal. It cost me like $50. I guess it's random, some people have that problem, some don't.
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