PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Failed dyno tune

Old Feb 18, 2003 | 04:16 PM
  #1  
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Default Re: Failed dyno tune

Is there anyone out there who can help me?
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Old Feb 18, 2003 | 04:52 PM
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Default Re: Failed dyno tune

more than likely it has something to do with your O2s since they have been moved back...get your computer scanned...more than likely it isnt you MAF ends I have them and have no problems
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Old Feb 18, 2003 | 04:57 PM
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Default Re: Failed dyno tune

Too many variables. You need to get the DTC scanned.
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Old Feb 18, 2003 | 08:21 PM
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Default Re: Failed dyno tune

Thanks
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Old Feb 19, 2003 | 12:29 AM
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Default Failed dyno tune

I recenty had my car dyno tuned after heavy modification. I added smooth bellows, heads and cam, LT headers, ASP pulley, ported throttle body, and MAF ends.

Before the car was dyno tuned the SES light came on. I know that this is to be expected. But, a few days after dyno tuning the SES light came on again and has stayed on. Could the reason for this be the MAF ends. Could they prevent the PCM from adjusting to the new set up? Should I put the old descreen ends back on? Thanks for you opinions.
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