Smellis like a peskey M A.P senser located in the intake manifold...it controls the air fuel mixture too along with mass sen. & o2 sens..
...Manifold Absolute Pressure Billy Starr
Replace the fuel filter,if this does not help,replace the fuel pump.
replace the fuel filter,if this does not help,replace the fuel pump,
Please let me know what happens here,so I can help more,thank you,
I need to know what the codes said exactley,and there needs to be a fuel pressure test done to make sure the fuel pressure is correct.Also clean the plenum,this is the upper intake.Use intake cleaner,this causes hesitation ,in a vehicle,and will throw codes such as this,exhaust being stopped up,well put a vacuum gauge on the intake,and read the vacuum,it is very possible,the computer will blame the mass air flow when the vacuum is weak,check the temp of the engine,and see if it is running warmer than usual.If so,it most likely is stopped up.
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I have a 94 Buick lesabre that started hesitating when driving then it died but when I unplug he mass air flow sensor it will run but rough and a code said it had low voltage to the o2 sensor so I changed it and that mass air flow sensor and it still does the same thing and when I plug the mass air sensor back in the car dies someone told me it could be the catalytic convertor but exhaust still comes out and its very hot and it stinks but I want sure if that might just be because of the mass air flow sensor is unplugged
the car still runs and drives with the mass air flow sensor unplugged
I'm not totally sure on what the code said I just remember it said low voltage on bank 1 which I assumed it was the one on the exhaust manifold and I'm not sure what it said about the mass air flow sensor because my dad unplugged it and we had it checked at o'reillys but couldn't get it to clear the codes and I thought maybe the mass air flow sensor came up because it had been unplugged and the only way I know now to check the codes is take it to a shop but I will clean that Plenum and see what it does
I started the car last night and there is no check engine light that comes on I kept my foot on the gas pedal and it would run but would start to idle fine then when I would bring my foot up some it would act liked it wanted to die and I only ran it for maybe almost 2 minutes and it started to get hot
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