car jerking in slow speed and high rev at idle

1996 NISSAN MAXIMA
150,000 MILES
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ADI1991
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hi
i have nissan maxima 96 with 150k miles on it

i cleaned IAC valve and throttle body after that car is jerking at slow speed and the RPM is on 2000 at idle.

before cleaning this the problem is only with IAC valve that the car suddenly dies at idle or at slow speed.

no DTC appear.
Apr 24, 2013 at 11:24 AM
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HMAC300
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check fuel pressure first
Apr 24, 2013 at 12:25 PM
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ADI1991
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i checked the fuel pressure its ok.

now what i will do with that.
Apr 25, 2013 at 4:39 AM
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HMAC300
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fuel pressure must be 43 psi not ok
Apr 25, 2013 at 5:33 AM
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ADI1991
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Sir
Before 2 months i changed my fuel pump
And today i checked the pressure is normal

Before cleaning IAC and throttle body the car was working good with only little bit hesitating
Apr 25, 2013 at 8:39 AM
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HMAC300
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scan for codes as well and check for a vacuum leak it may need a new iac was throttle plate cleaned on both sides or just one, if not clean on both sides. what is fuel pressure? not normal or ok what is psi reading?
Apr 25, 2013 at 9:23 AM