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Old 12-30-2010, 03:38 PM
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P0069 -13f outside

It was -13f out today and out of the blue I get P0069, got the code from my Insight. I am gonna get the laptop out and hook up the Autoenginuity and see what I get...but I already deleted the code.

Any thoughts until I hook up the AE?
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Old 12-30-2010, 03:47 PM
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MAP sensor code. Some 05's dont have them
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Old 12-30-2010, 04:55 PM
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So i went for a drive tonight and watched MAP, barometric pressure, IAT2 and MAF with the Insight. 1st..well after looking with the AE there is a difference in the temps IAT2, the Insight says 20deg and the AE says -2deg. I am leaning towards something to do with the Insight and I will be updating my Insight later tonight.
Most importantly watching the MAP while driving most of the time it was right on, once I got into the throttle and created high pressure/boost situations the readings were all over the place. It (MAP)would get up to the 240's and then give me 0 or 30, some random # much lower than it should be.
Then pulled codes with the AE and got P0470 MIL pending...but did not get anything when I did KOER(except my EGR and FICM codes, see sig).

What should my next course of action be?


Side note
I did also get a U1262 PATS communication error, if I remember correctly. I will be doing a search on it to see what I can dig up. But this is the first time it has come up, the last time I had the AE on the EX was over 3 months ago.
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Old 12-30-2010, 06:45 PM
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i had a p0470 pop up after a rough cold start, truck ran fine after it warmed up so i cleared it still no codes though. wondered if the cold weather made it act funny
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Old 12-31-2010, 03:54 PM
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So if I am getting intermittent readings from the MAP sensor, can I clean it or does it have to be replaced?
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Old 01-01-2011, 02:16 PM
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First and foremost, if you have the capability to monitor BARO, MAP and EBP (all three in psi), that would be the first course of action. At key-on/engine-off, all three should indicate atmospheric pressure (about 14.7 psi in my neck of the woods), and all be within 0.3 psi of each other. If the ambient temperature is that cold, you might have an EBP tube freezing up with ice inside. But once the engine is started, it doesn't take long for it to melt, so this should be a non-issue. Nonetheless, when the engine is started, you should see a slight increase in MAP and EBP readings while BARO will remain constant throughout the entire operating range. If you are seeing MAP readings all over the place, the first thing I'd do is remove the hose, blow it out to remove all carbon that could be lodged in it. Ditto for the MAP sensor brass fitting in the intake, remove it and clean off all carbon deposits. If doing all this still results in MAP readings all over the place, change the MAP sensor or look for problems with your turbo.
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Old 01-01-2011, 02:38 PM
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I know the atmospheric is right on because I take barometric readings every hour at work and it was 96kpa last night at work and in the Ex. I will do the koeo to see if the other 3 are the same. The MAP only gave me intermittent readings in high boost situations, where the MAP was above 240kpa and boost was over 24 or 25. I cannot do much work on it until Monday. Can I still drive it if I keep the boost down?

Any thoughts on the PATS error U1262?
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