Overboost Protection? Dropping Boost
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Teching In
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Overboost Protection? Dropping Boost Posting this up here in the Gen5 Section since it has more activity. My CTS-V is dropping boost on WOT pulls and I'm not sure wtf is going on. Pulley looks good doesn't look like slip.
I go WOT builds boost to about 14lbs for a few seconds then the car kills all the boost down to 0 and says service vehicle soon on the DIC. Any thoughts from the ZL1 crowd?
I go WOT builds boost to about 14lbs for a few seconds then the car kills all the boost down to 0 and says service vehicle soon on the DIC. Any thoughts from the ZL1 crowd?
9 Second Club
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From: Norn Iron
Is the boost gauge the one at bottom right ?
If the boost was dropping by that amount, the drop in performance would be like hitting a brick wall.
The audio in the clip and video of acceleration doesnt seem to suggest that is happening ?
If the boost was dropping by that amount, the drop in performance would be like hitting a brick wall.
The audio in the clip and video of acceleration doesnt seem to suggest that is happening ?
Thread Starter
Teching In
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Anybody tell me signs of spark plugs going bad. Lately lots of hesitation on light throttle and I went to get on it and the power just wouldn't come on and just backfired a few times.
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Teching In
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Just an update. Working through what I believe a this point to be a tune issue. I have the following codes that only appear under WOT. Wonder if anyone has any thoughts.
P1101 - Intake Air Flow System Performance
P012B - S/C Inlet Pressure Sensor Performance
P0121 - Throttle Position Performance
P0106 - Manifold Absolute Pressure Sensor Performance
P1101 - Intake Air Flow System Performance
P012B - S/C Inlet Pressure Sensor Performance
P0121 - Throttle Position Performance
P0106 - Manifold Absolute Pressure Sensor Performance
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Teching In
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It was at cadillac today and the car had no codes what so ever in terms of a misfire or anything really wrong with the car. The car doesn't run bad it just pops up that thing on the DIC about servicing the vehicle only at WOT.
My guess its something in the tune where they need to adjust settings to account for more airflow and more boost. I'm still waiting on their response.
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