fitbmx86

Hey guys i have a b18b1 swap in my 95 coupe. I have this really odd problem and its killing me i cannot figure it out. Ok heres the deal. when i did the swap i had a pr4 ecu that i ran and it ran like ****, wayy to rich, surging idle, would die at stop signs etc. it ended up totally being the ECU i plugged in my P06 from the d15b7 and it worked perect, nice idle around 800-900 no stalling, ran a tad bit lean but i couldn't complain becuase of saving gas. Just sucked becusae i was getting cut out at like 6,200 rpm right where the LS makes it power.
Anyway skip ahead about ayear and i just picked up a P75 obd1 ECU from a 95 integra. Now its running better than the PR4 did but still not as well as that P06 ran it. Its running a big richer i can just tell because im not gettin as good of gas mileage i haven;t checked the plugs gotta do that tomorrow, BUT the GOD DAMN SURGING IDLE IS BACK. back when i had the PR4 i tried everything before switching ECU's also i cleaned the IACV whcih was in good shape, cleaned the TB, everything. why is the ecu thats meant for the motor not running it properly? i really enjoy the added 500 rpm or so the car seems to pull harder too but the idle is pissing me off. its only at a cold start, it revs around 1,400-2,000 and just goes up and down annoying as hell. When its fully warm it usually is a little high when i come to a stop, but if i just touch the gas it does down to 800-900 and stays constant. Im expletiveing puzzled though and its pissing me off. i really hope someone can help me, did i just end up getting another bad ECU? and why is my gas mileage sucking? i did a full tune up last year when i put the motor in. Im getting about 300 miles to tank with this ecu, got around 350 with the old one.

jax97hx

id just chip one of your ecus and run basemaps with crome or whatever till you find something you like and you can set a bunch of other things as well

edit: better yet just sell yours and buy a soceted p28

fitbmx86

ttt