PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Emissions code questions

Old Aug 30, 2004 | 05:43 PM
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Default Emissions code questions

i am wanting to get a diablo predator and was wondering if i use it to delete any codes from the PCM would it cause any problems with the emissions test?
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Old Aug 31, 2004 | 11:33 AM
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anyone?
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Old Aug 31, 2004 | 11:50 AM
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deleting the correct codes results in all readiness bits being "ready" for whatever you might want to do with those bits.

does predator even do this? of course for off road purposes only.
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Old Aug 31, 2004 | 10:27 PM
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i am not sure, i know that you can use it as a scan tool. i thought it could be used to delete common SES codes. but i wasnt sure if removing these codes would cause problems with my emission testing. i am sure i could just return it to a stock tune for emissions purposes. but i have a code coming up and i would like to delete it so i can pass emissions. so i am stumped.
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Old Aug 31, 2004 | 11:26 PM
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That tuner can't "delete" codes, it only clears them and turns off the ses until the PCM sees the fault again and resets it.
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Old Sep 1, 2004 | 05:37 AM
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buy hptuners
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Old Sep 1, 2004 | 09:44 AM
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so the light will come back on later? i dont have a PC, only mac, so i dont want to have to buy a comp just to tune my car.
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Old Sep 1, 2004 | 12:28 PM
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Originally Posted by abadss
so the light will come back on later? i dont have a PC, only mac, so i dont want to have to buy a comp just to tune my car.
If there's an actual problem the light will come back on, if the problem is fixed, it will stay off.
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You can clear codes with a predator. I have one that I'm looking to sell, P.M.me if you are intreseted.
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