b20bFourDoorCivicLX

Long story short.......i swapped my civic 98 LX with a JDM b20b from a CRV, Along with a JDM GSR transmission..

the Type of manifold im using is a obd1 LS, All LS sensors... with obviously a jumper harness due to the fact my motor is obd2.

For awile i ran the motor with a STOCK fuel regulator and STOCK p75 ...it always felt a bit sluggish. the idle always was rough..i hated to run the a/c because the car would fall on its face ...

so what i did first was replace stock F/R with a BLOX F/R bumped in the fuel pressure along with a Chipped ECU, my ecu is now running a 2.0 base map,less fuel restriction,2 step, redline at 4000 tuned on crome

my idle is now solid, it runs like it new, no more rough idle .....for anyone who is running a p75 ecu i recommend to get it chipped with a 2.0 base map,

i did alot of googling before i could figure out my problem people always said CLEAN IACV replace TPS etc...nope...maybe in some cases....


hope i could help someone

kyden

clearly the motor is going to run lean with an ecu made for a stock 1.8.

I would not just run some random basemap. Get it tuned. Just because it feels ok doesn't mean it is.

b20bFourDoorCivicLX

its a B20B BASE MAP, not just any random base map, and its tuned on crome, for now...i wont dyno my car tell i get more modications ...soon to be vtec, and rods and pistons

kyden

still a random base map, which is now useless since you have raised the fuel pressure from stock.

hybridmiklo

truthfully raising the fuel pressure isnt going to affect anything. the ecu controls the duty cycle of the injectors. the ecu will read the o2 sensor to determine if its too rich and then open the injector duty cycle according

kyden

only for closed loop. it does not change any fuel settings in open loop from the o2 sensor.

JuggerNaut-CTR

damn son....



Pretty much what you described, is kinda a given in what you should have done in the first place. You would have known by researching before you did the swap. This is basic motorswap 101 **** people figured out over a decade ago.

Helped someone, meh...maybe.

Glad its running better doe

b20bFourDoorCivicLX

typo. my 2step is at 4000 . redline was set to 7500 .

b20bFourDoorCivicLX

i have it set to where it suppose to be for my kind of swap. car feels 10x better from this crome chip/tune...p28 ecu i recommend it to anyone who gets a b20b swap