scottmog

The question i had was concerning the Lean Burn on these engines.

Which state is the 50th state not included with the lean burn? CA im guessing...
What component is different that does not allow the lean burn? ECU im hoping.

Anyone that has alot of experience with this please help if possible. I'm looking to swap a d15z1 into my 89 crx hf. thank you all.

D15Z1
* VTEC-E
* Found in:
o 1992-1995 Honda Civic VX
o 1992-1995 Honda Civic VEi (European Market)
+ Displacement : 1,493 cc (91.1 cu in)
+ Bore and Stroke :75 mm × 84.5 mm (3.0 in × 3.3 in)
+ Rod Length : 137 mm
+ Rod/Stroke : 1.62
+ Compression : 9.3:1
+ Power : 90 hp (67.1 kW, 91.3 ps) @ 5600 rpm (92 hp @ 5500 rpm USDM)
+ Torque : 98 ft·lb (13.5 kg/m, 133 Nm) @ 4800 rpm (97 ft·lb @ 3000 rpm USDM)
+ Valvetrain : SOHC VTEC-E (USDM- Lean Burn Federal Emissions 49 State) (3-4 valves per cylinder depending on RPM)
+ VTEC Switchover : 2500 rpm
+ ECU Code : P07
+ Fuel Control : OBD-1 MPFI

scottmog

sorry lol, found my own answers.

http://www.gassavers.org/showthread.php?t=6837

o2 and ecus are different

Cali Stuff:
No lean burn
4 wire
ECU 37820-P07-L02

49 State:
Better Fuel Economy, cuz lean burn works
5 wire LAF sensor
37820-P07-L00 CA