need help!!!!! 91 nissan sentra ser choking under acceleration

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nissansentraser
Posts: 4
Joined: Thu Apr 08, 2010 4:42 am
Car: 91 nissan sentra ser

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ok guys im new to the nissan world i finally got the car i always wanted a 91 nissan sentra ser car has 140k miles on it i got her for 400 bucks it was a steal she runs good then idles funny and when you give it gas she doesnt wanna move any where then she cleans up and runs fine i replaced fuel filter checked the tps sensor and mas air sensor i unplug them see if anything happened and they do the mass air when i do this car wants to die and tps when i do this idle goes up high so i doubt its this i have no clue what i could be and its not a head gasket or compression it just chokes up some times when i drive it.


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Infinitiguy19
Posts: 7787
Joined: Sat Dec 22, 2007 4:58 pm
Car: 1993 Infiniti Q45 188580 Miles
1994 Infiniti Q45a 240000 Miles

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Check the fuel pressure, spark plugs and clean the MAF sensor and connector.

nissansentraser
Posts: 4
Joined: Thu Apr 08, 2010 4:42 am
Car: 91 nissan sentra ser

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thanks for the help i checked the mas air once again and im pretty sure it has to be that but ill def check fuel pressure becuase its starting to get even harder to drive with the choking problem runs good one sec the next it runs like crap

nametakennow
Posts: 10024
Joined: Sat Aug 24, 2002 4:14 pm
Car: '06 MINI Cooper S

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Make sure the spark plugs aren't fouled as well.

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speedeast
Posts: 1610
Joined: Sat Aug 01, 2009 7:01 pm
Car: 1990 240sx VH45 FB & 1993 300zx
Location: Orlando, Fl

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Paul Wall wrote:Check the fuel pressure, spark plugs and clean the MAF sensor and connector.
Also, a buddy of mine had one that ran as you describe because the ignition timing was a little off. My first guess was fuel pressure, so check that out and get back to us.

nissansentraser
Posts: 4
Joined: Thu Apr 08, 2010 4:42 am
Car: 91 nissan sentra ser

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whats up guys havent been on here for a while i changed the mas air, tps, distributor and wasnt that it turned out to be injectors but thanks everyone for your help


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