PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Hptuners Dropped Tune????????

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Old Aug 13, 2008 | 07:10 AM
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Default Hptuners Dropped Tune????????

Ok here is the deal. We picked up the car with a tune already (EFI Live) and even though it ran good I wanted to make sure it was inline for N/A and for nitrous. So I took it to one of the local tuners here. Well after the tuning (w/hptuners) it ran fine N/A and nitrous. Over that same weekend the wife wanted to swap interior with a friend as she did not like the all red interior. So we disconnected the battery in order to not throw a airbag light. Well seems after that stuff has been going down hill. Car would hit 10:1 on the AEM wideband on the hit so I let off. Sometimes it would idel at 11:1 sometimes at 15:5:1. Sometimes when driving and coming to a stop it would max out the AEM wideband and hit 17:1 and stall out.

It killed one O2 sensor so I replaced them both yesterday thinking that might be the fix. Well guess what it still does the same crap. Now its at 11:1 when you really get into it.

I am lost and the only thing I can think of is the car dropped the tune.

I am headed Friday 9am to the tuner to do some street tuning and see if we can get this bug worked out.
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Old Aug 13, 2008 | 08:40 AM
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The tunes do not just drop out. It is probably just a calibration error or broken part/sensor/wiring.

When you Flash the computer you are ERASING the previous file in it and over writting it with another. The old one is NOT stored anywhere in the car.
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Old Aug 13, 2008 | 09:00 AM
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Well I took it too a shop and they put it on there scanner and said right side O2 was shot and left one was on its way out so I replaced both. I am lost.
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Old Aug 13, 2008 | 09:13 AM
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Thanks for talking to me I will be calling you to order efilive shortly and I should have done that in the first place.
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