96_RHD_EK

i got a 97 civic lx sedan with a d16y8 swap got the car running for about 30 minutes then CEL came on p1259 for vtec malfunction, changed the vtec solenoid and oil pressure switch, reset the battery, pulled the ecu, car is still in limp mode. i opened the ecu nothing is burnt or lose, drove 2 obd cycles, the car is throwing CEL p0450 and p0453 both are evap codes, car still in limp mode i am stumped any help would be greatly appreciated

1997 civic lx sedan
1997 d16y8
ex engine harness
new vtec solenoid
new vtec oil pressure switch
new plugs
new wires
new cap
new rotor button
new coil
fresh oil change
manual p2p ecu

96_RHD_EK

i tried serching could not find anything someone please help!!!

96_RHD_EK

trying a new ecu and dizzy now to see if it solves the problem

Former User

Why do you think the engine is in limp mode? Have you checked the mechanical timing?

96_RHD_EK

it wont rev past 4500 its in limp mode, timing is good, ran fine with auto y8 manifold and p2e, i put in manual manifold and converted to 2 wire iacv, p2p ecu, now in limp mode

Former User

You'd need a CEL code or bad ECU to go into limp mode. Therefore, fix P0453 and go from there.

96_RHD_EK

Evaporated code shouldn't put it in limp mode

Former User

Then swap in a known good ECU.

96_RHD_EK

tried new known working ecu same thing

Former User

The ECU is not in limp mode. Double check the mechanical and ignition timings.

apexi_rsx

are u running a knock sensor? if not its not gonna work