LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Code 33 Map sensor high

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Old Aug 28, 2009 | 02:42 PM
  #1  
SmokeyBlaZe's Avatar
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From: GA
Code 33 Map sensor high

So it threw this code the other day and I know that on the green connector that go's to the map sensor the clip is broken but it still seems like it is getting a tight/good connection, Would I likely have to replace the sensor itself or just the connector? I called a local autozone and they have 2 in stock with a 90 day warranty for 35 dollars but they are the store brand which is Duralast? should I go ahead and replace the sensor with the AZ brand or order an acdelco and spend at least twice the money and have to wait for 3-5 days? I would also have to order the pigtail/connector because the stores don't carry it /can't get it. Any input is appreciated.
Old Aug 28, 2009 | 04:42 PM
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If you have a broken clip, I don't know why you would be replacing the sensor first. Replace the pigtail. Eficonnections or lsxtune has reasonably priced pig tails.
Old Aug 28, 2009 | 10:15 PM
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Efi connections is down til sept 1, 2009 but lsxtune has it for 5.99
http://www.lsxtune.com/shop/product_...roducts_id/459 So I'm gonna change out the connector reset the pcm and pray for no cel.
Old Aug 28, 2009 | 10:17 PM
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Should I just crimp the wires and tape them?
Old Aug 28, 2009 | 10:59 PM
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Solder and heatshrink is the way I like to do it.
Old Aug 30, 2009 | 03:11 PM
  #6  
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still waiting on my pigtail to arrive, Took off the sensor and the hole was clogged with oil so I cleaned it all up. The little seal is warped so I put some teflon tape under it and tried to stretch it back out for a quick fix, now the car is missing mostly at lower rpms but I can turn the car off and back on and the miss is totally gone but it comes back pretty soon.Any input is appreciated. thanks for the reply
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