2004 Saturn Vue Possible MAP Issue

Tiny
GIFTHANDLER
  • MEMBER
  • 2004 SATURN VUE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 82,000 MILES
Hi guys, you have alsways been correct in the past, Again, I need your infinite wisdom. I removed the air intake houseing, you know the tube the air goes through before it goes into the air intake. I cleaned the tthrottle body flapper valve with berrymans. I may have contaminated the MAP sensor. Now the check engine lighth comes on. I can remove the negative battery post and after 5 mins replace and the light goes out. Good thing except after about an hour of driving it comes back on. The code returned is P2282. From the Autozone computer it says the MAP sensor has failed. In have checked the connections and they seem OK. Do you think it is the MAP sensor? The part is about $100 and I would like your opinion before I replace. Thanks and I am eagerly awaiting your reply. BTW the car seems to be running great but I don't think it will pass inspection with the check engine light on.
Saturday, July 25th, 2009 AT 6:03 PM

5 Replies

Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Before you replace the map sensor, check the vacuum lines going to it. The cleaner you used may have melted the plastic.
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Saturday, July 25th, 2009 AT 11:30 PM
Tiny
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  • MEMBER
  • 15 POSTS
Is the code P2282 indicative of the MAP sensor. I don't see any hoses attached to the MAP sensor. It is located on top of the entrance to the throttle body with a harness attached. Could some cleaning fluid gotten up into the MAP sensor from inside the throttlr body opening when I was cleaning the throttle body? This fluid is berrysmans just like STP injector cleaner. There was quite a bit of gunk built up at the flutter valve. The fluid dissolves the gunk. I will chck again tomorrow. Will the bad hoses be soft to the touch if they have brokeb down inside? The hoses I am talking about are below the throttle body assembly. They are all attached with factory hose clamps.
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Sunday, July 26th, 2009 AT 1:26 AM
Tiny
GIFTHANDLER
  • MEMBER
  • 15 POSTS
I checked all the hoses and none appeared to be collapsing. I installed a new MAP sensor, cleared the code andit seemed to be ok for about two days, then the code came back. I thought hard about what conditions occurred right before the code set again. I am thinking that it happens after the engine gets real warm. Now the engine isn't overheating but there is not alot of room under the hood and especially between the engine and the firewall. I am thinking that when the engine gets hot and since we are experiencing almost 50 days of 100+ outside temps, that the air hoses between the engoine and the firewall are starting to breakdown due to the extreme heat. My next attempt will be to replace as amny of those hoses as possible. Do you think this might resolve the P2282 issues and have you got any other suggestions. BTW, I did pull the PCV value and cleaned it thoughly. I also purchased a Actron P9175 scanner to help in diagnosing future issues.
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Thursday, August 13th, 2009 AT 10:55 PM
Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Sorry that i'm getting back to you so late.
My car was stolen tuesday night/ wednesday morning. And I've been reoccupied with that.

Since the code you have came back after you got a new MAP sensor, we can pretty much rule out the sensor is bad.

Now we have to look for
dirty butterfly valve in throttle body.
Vacuum leak
intake air leak
vacuum leak in EVAP system
leak in PCV system
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Sunday, August 16th, 2009 AT 8:55 PM
Tiny
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  • MEMBER
  • 15 POSTS
Sorry to hear about your car getting stolen, Hope you get it back in one piece. Top the Saturn. The first thing I did was clean the butterfly valve in the throttle body. My next action will be to replace all the air hoses I can find behind the engine and in front of the firewall. Although they look and feel OK when the engine compartment gets hpt I think the hoses may be breaking down. I'll let you know what happens. BTW I now have an extra MAP sensor.
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Monday, August 17th, 2009 AT 11:15 PM

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