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Old 07-19-2011, 02:09 PM   #1
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From Loren over on Renntech:

"P1128 Oxygen Sensing Adaptation, Idle Range, Bank 1 – Above Limit
P1130 Oxygen Sensing Adaptation, Idle Range, Bank 2 – Above Limit
Possible fault causes:
– Incorrect signal from MAF sensor
– Intake air system leaking
– Fuel pressure too low
– Volume supply of fuel pump too low
– Fuel injectors fouled
– Exhaust system leaking

Bottom Line - in most cases we are looking at an air leak or a bad MAF. If the MAF is bad then it is sending the wrong signal to the DME.

P0740 Torque converter clutch, excessive power consumption
This is a CAN bus reading that is sent to the instrument cluster. I've seen this often from wheel spin.
I would reset this one and see if it comes back under normal driving."

Disconnect the MAF and if the car runs better, clean or replace the MAF.
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Last edited by Topless; 07-19-2011 at 02:14 PM.
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Old 07-19-2011, 02:47 PM   #2
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Removing mass air flow requires a tamperproof t-20 torx bit.
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Old 07-19-2011, 03:17 PM   #3
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Quote:
Originally Posted by brian325is
Removing mass air flow requires a tamperproof t-20 torx bit.
What makes it "tamperproof"? I've never heard of torx referred to this way.
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Old 07-19-2011, 03:41 PM   #4
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the tip of the torx bit has a hole in it. The torx bolt has a pin in the centre so a regular torx bit will not fit
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Old 07-19-2011, 03:45 PM   #5
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here is a pic
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Old 07-19-2011, 03:53 PM   #6
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Quote:
Originally Posted by brian325is
the tip of the torx bit has a hole in it. The torx bolt has a pin in the centre so a regular torx bit will not fit
Yes, this is very important. You wouldn’t want a gang of Porsche hoodlums breaking in your garage and changing out your MAF sensors! This tamperproof torx will confuse the hell out of them, and let you sleep well at night!
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Old 07-19-2011, 04:03 PM   #7
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Quote:
Originally Posted by brian325is
Removing mass air flow requires a tamperproof t-20 torx bit.
Yes.
Or you can remove the torx screws with any common needle-nose pliars match them up to proper phillips head replacement screws, and then deposit the silly torx screws neatly in the trash where they belong. Some day my car will be completely torx free.

Note to OP: To test the MAF you don't need to remove it. Just disconnect the wire connector and drive the car.
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Old 07-19-2011, 05:20 PM   #8
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Well im waiting on a flat bed. Lost all power with rpm shooting way up. D and 4 flashing. I was driving across town to get it to the shop.

Update: It will be at the local Indy shop first thing in the morning. No night drop so the tow co is holding it overnight. I appreciate all the suggestions and ill update once I know what the issue is.

Last edited by Earn; 07-19-2011 at 08:53 PM.
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Old 07-20-2011, 10:18 PM   #9
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Sounds like it's in limp mode. As for the maf, I would change it. I had the same codes, minus the tranny code and it ended up being the maf. It was jerking and doing very similar things. Bought the tamper proof torx bit from autozone and it was a 5 minute repair.
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Old 07-21-2011, 10:21 AM   #10
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Quote:
Originally Posted by Earn
Well im waiting on a flat bed. Lost all power with rpm shooting way up. D and 4 flashing. I was driving across town to get it to the shop.

Update: It will be at the local Indy shop first thing in the morning. No night drop so the tow co is holding it overnight. I appreciate all the suggestions and ill update once I know what the issue is.
Let us know what they say.
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Old 07-21-2011, 11:10 AM   #11
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Let us know what they say.
Will do. They are supposed to get to it today.
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Old 07-22-2011, 09:04 AM   #12
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Well its all bad. The MAF is bad but that's the least of the issues. Needs a transmission and torque converter. Also needs oil separator. I was quoted $3700 to install a used transmission with 60k miles on it and a new torque converter.
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Old 07-19-2011, 02:47 PM   #13
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Great!! I really appreciate all the help. Its great how a community with the same interest will come together to help each other. I hope to be a contributor for a long time.
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