90 teggy idle issues

[Boredoutteggy]

I just rebuilt my b18a1
I redid whole motor only upgrade is block was bored to a b20

My car idles real rough and smokes out exhaughst
Now when i unplug map sensor then plug back in it runs like a champ

I've swapped out 3 different map sensors
What else could it be
Please help

 

[DA9teg1]

have you replaced the IACV with a new one? and also i just found out that mine was gas filing the plugs due to lack of oxygen and runs like a turd box. all due to this one thing tho mine dont have a map its got a cai. try that and see if thats the reason.

 

[Merlins Beard]

have you replaced the IACV with a new one? and also i just found out that mine was gas filing the plugs due to lack of oxygen and runs like a turd box. all due to this one thing tho mine dont have a map its got a cai. try that and see if thats the reason.

Pretty sure your car has a MAP sensor. The B-series in the Integra uses a MAP (manifold absolute pressure) sensor attached to the intake manifold. This sensor is not attached to the intake and does not get removed when an aftermarket intake is installed.
The AFM and MAF sensors are used in place of a MAP. The AFM and MAF are usually located on the factory intake and must be removed or modified when installing an aftermarket intake.

 

[DA9teg1]

okay well that set me straight on that one when i bought mine didnt have a intake at all just open throttle body but i just custom made one. but the IACV could still be the issue.