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CMCV installed, car runs, but I have a few problems...

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Old 11-20-2007, 06:33 PM
  #21  
acascianelli
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Default RE: CMCV installed, car runs, but I have a few problems...

One thing I'm noticing about the idling is that when I would first start the car before, the RPMs would shoot up between 1000-1500rpm then slowly settle down. Now, they never break 1000rpm, and settle down very quickly compared to before.
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Old 11-20-2007, 06:34 PM
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Default RE: CMCV installed, car runs, but I have a few problems...

One thing I'm noticing about the idling is that when I would first start the car before, the RPMs would shoot up between 1000-1500rpm then slowly settle down. Now, they never break 1000rpm, and settle down very quickly compared to before. Is this something that will works its way out as the car adjusts to the tune?
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Old 11-20-2007, 06:41 PM
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onederful100
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Default RE: CMCV installed, car runs, but I have a few problems...

was this a cold start like in the morning? bc mine goes to 1200-1400 for like 30 - 40 seconds, then down to 750 where it stays. if its any time later in the day it just goes to 1000 for like 10-15 sec then down to 750. it only idles high on start up first thing in the morning. but if yours runs fine after warming up i wouldnt worry about it.
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Old 11-20-2007, 06:44 PM
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Default RE: CMCV installed, car runs, but I have a few problems...

ORIGINAL: onederful100

was this a cold start like in the morning? bc mine goes to 1200-1400 for like 30 - 40 seconds, then down to 750 where it stays. if its any time later in the day it just goes to 1000 for like 10-15 sec then down to 750. it only idles high on start up first thing in the morning. but if yours runs fine after warming up i wouldnt worry about it.
Yea, it was in the morning, its been about 35-40F here in the mornings.
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Old 11-20-2007, 07:46 PM
  #25  
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Default RE: CMCV installed, car runs, but I have a few problems...

Codes came back, along with the engine light

P0171
P0174
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Old 11-20-2007, 08:43 PM
  #26  
howarmat
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Default RE: CMCV installed, car runs, but I have a few problems...

Those are the rear 02s....they need to be shut off

go into the diablo and go to OBDII and the find the "hego cat somthing" and turn those to off.
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Old 11-20-2007, 09:18 PM
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Default RE: CMCV installed, car runs, but I have a few problems...

ORIGINAL: howarmat

Those are the rear 02s....they need to be shut off

go into the diablo and go to OBDII and the find the "hego cat somthing" and turn those to off.
How do you know that? Is this something Doug should have turned off but forgot? I'm still running stock exhaust, why would I need to turn off the O2 sensors?
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Old 11-20-2007, 09:22 PM
  #28  
howarmat
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Default RE: CMCV installed, car runs, but I have a few problems...

He didnt turn mine off by default on the old tunes, since you didnt mention and o/r pipe i doubt he turned yours off....i got these codes when i put the o/r h pipe on and then just turned the sesnors off myself and no more codes
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Old 11-20-2007, 09:25 PM
  #29  
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Default RE: CMCV installed, car runs, but I have a few problems...

ORIGINAL: howarmat

He didnt turn mine off by default on the old tunes, since you didnt mention and o/r pipe i doubt he turned yours off....i got these codes when i put the o/r h pipe on and then just turned the sesnors off myself and no more codes
I don't have an o/r pipe, I have completely stock exhaust...
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Old 11-20-2007, 09:42 PM
  #30  
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Default RE: CMCV installed, car runs, but I have a few problems...

I know this but it doesnt matter, they can still throw codes because of other changes.....just shut the sensors off and then see if you get anymore codes at all...if not then all worries are over and enjoy the new found power!
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