uberhaulin

alright... i have a b16a1 in a 91 hatch... weve got everything hooked up and the motor runnning... when u go to accelerate the car bogs and wants to stall... we switched my o2 sensors around.. and it still bogs and wants to stall. would this have any thing to do with it not haveing an exhaust aka hardly any back pressure have any thing to do with it... and suggestions would be very helpful

teamredline9k

no not having an exhaust would not cause any problems from not having backpressure. backpressure is not needed it is only for mpg and idealy 2 and 1/2 lbs of backpressure would be more efficent but it is not needed i ran open headers for over 2 months. and are you throwing any codes? or is it just when WOT or 1/2 throttle or what?

rollhard

Its sounds like an ECU problem. I would put the exhaust back on though. Running open exhaust might sound like the car is making more power but its not. I've dynoed too many hondas to know that no exhaust makes power. Your low end will suffer too much. What ECU are you running?

dr_latino999

It would only bog and try to stall by reason of exhaust if your exhaust was clogged, i.e. collapsed flex joint, clogged cat, etc.

uberhaulin

im running pw0 ecu... i just got an exhaust on it and it still doesn it... it bogs when u give it gas period even 1/4 throttle. do u think its not getting enough fuel?

uberhaulin

i forgot to say that it idles fine

rollhard

does your check engine light come on?

uberhaulin

yes it comes on.. it was throwing a few codes.... i wrote down the codes it was throwing but its at the garage were my car is ill go get them later..

uberhaulin

two of the codes were map sensor singal and IACV.. so tomarrow im going to check my map sensor and make sure its getting vacum does any one think that would be the problem?

uberhaulin

any one? tryed two different map sensor and that didnt help much


Modified by uberhaulin at 1:45 PM 6/15/2006

jweeks

having same problem on my h23a blue top getting a map sensor code. car runs worse without was going change it. iab valve anyone?

jweeks

vac seems to be the issue to me if I loose some of mine that are for idle control and misc the engine will rev but misfire and sounds/smells to be running rich

4drEF

Did the code clear?
Did you reset the ECU?

ollie

I had the same problem on my old crx when I accidently switched the plugs(MAP/IACV). IIRC the plugs are very similar and can be mixed up. Switch the plugs and retest and let us know.