Aracnafondler81

whats up guys. I have a 99 integra with a b18. I want to swap the b into my e.g. Sedan. What would I need to do/buy to swap?

JRCivic1

Use everything from the Integra except the ECU. Engine, transmission, axles, shift rods, engine harness (plugs right into chassis), mounts, throttle cable. You will need to source a '94-95 Integra P74/P75 manual ECU and you will be done for basic operation. Power steering should be plug and play... if the high pressure P/S line in your civic doesn't fit the Integra pump, you can source a CRV P/S bracket and use your original civic pump and line. For A/C, you will need a CRV or Del Sol DOHC A/C bracket to bolt your civic compressor to.

Aracnafondler81

why would I need to buy a new ecu? Would I need to get it flashed?

JRCivic1

1) You cannot "flash" an OBD-1 or OBD-2A ECU. Now you could "chip" your original ECU and run a chip with a B18B program on it... assuming you trust the source. Otherwise, you need to get the car tuned by a professional.
2) The '99 Integra ECU will NOT plug into your '92-95 ECU plugs.
3) If you buy an adapter harness so that you CAN plug in the '99 Teg ECU, you will get a host of emissions related codes (that will be expensive and difficult to defeat) as well as needing a CKF sensor wired up just to get it to rev over 4000 rpm. So you have to decide which is cheaper: A different ECU to run the engine OBD-1 style, or an adapter harness, a fuel tank with vapor pressure sensor, a secondary O2 sensor, a different charcoal cannister with a vent shut-off valve, a larger purge/cut device and hours of wiring to make it all work as an OBD-2A style system... oh, and don't forget wiring up the OBD-2 data port.

HondaPartsHero

Just get an OBD1 P74/75. Swap over your injectors so they'll be plug and play. You'll need a distributor adapter from OBD1-2A. The rest will plug and play assuming your B18 is non VTEC.

Aracnafondler81

thank you much!!! And yes it's no vtec