1996 lumina

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  #1  
Old 02-16-07, 02:11 AM
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Exclamation 1996 lumina

Hi all i have a 96 lumina it stalls almost complety out and bucks when i give it gas like its not getting enough gas or too much ,had a pressure test it was good,fuel pump good new ,new plugs ,wires,filters,gas filters, took it it to the shop they have no idea could it be mass air flow sensor? any help would be great

thankz bill
 
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  #2  
Old 02-16-07, 04:55 AM
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Scanned for codes?

Check exhaust system to make sure it's not clogged?
 
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Old 02-16-07, 07:32 AM
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It could be the MAF, but when a MAF goes bad, it usually won't allow the vehicle to go above a certain RPM. To test, remove the electrical connector from the MAF. If the motor seems to run better, then replace the MAF.

I would also look at the Thottle position sensor or the crankshaft position sensor.

Also get the codes read as the_tow_guy said.
 
  #4  
Old 02-16-07, 02:14 PM
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Question

new exhaust new o2 sensors scanner says no codes and unplugged maf no difference
thankz bill
 
  #5  
Old 02-20-07, 03:15 AM
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oh btw just found out the fuel pressure regulator is leaking a little bit would that cause it ?
 
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Old 02-20-07, 11:31 AM
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Short answer....Yes!
 
  #7  
Old 02-20-07, 06:46 PM
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Weepage around the fuel lines is not to be ignored...............Unless you're looking to have a "carbecue"..............but unless you have a RADICAL leak, I wouldn't think so.............One thing I WOULD do is invest in a can of 3M throttle body cleaner and a good brush and make sure the T/body is spiffy............3.1's eact poorly to trash in the T/body
 
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