I bought a 93 Del Sol Si that someone had swapped a d15b7 into. I'm not sure if they used a d15 harness or just left the Si harness in the car. Is there an easy way to tell if the car still has the Si for vtec?

Also, I noticed that the car has the MAP sensor spliced into the harness. My other car with a d15b7 didn't have one like this so I'm not sure whats going on there.

There is also a plug that isn't hooked up to anything over by where the stock air filter box would be. Do you have any clue what that might be? I'll try and get some pics if my cell will take decent ones.

 

It should be, the 93 Del Sol Si came with the D16Z6 which has VTEC so yes.

 

The easy way is to look and c if the Vtec solenoid is hooked up and follow the wire.

 

no matter what engine is in there there will always be a wire from the ecu to engine bay for vtec. it's just a matter of what engine harness is there...look for a dangling green 2 wire plug and a dangling 1 wire gray plug around the distributor area...those are the plugs for the pressure switch and solenoid

a d15b7 doesnt have a solenoid

 

Ok, I was thinking he had the JDM D15

 

Thanks for the help, I kind of think they used a different harness. I'm not seeing anything dangling by the distributor.

 

On the engine harness there should be a green plug for the vtec pressure switch and a grey plug for vtec solenoid, if they aren't there, it is really simple to wire it in yourself, if you need a picture showing how let me know.

 

post a picture(particular around the distributor area) and we can help.. As I remember only 92 civic's hatch are all hard wired for vtec (correct me if i'm wrong)

but del sol SI should have D16Z6 motors


COURTESY OF WIKIPEDIA

D15B7

* Found in:
o 1992-1995 Honda Civic CX (Canadian model)
o 1992-1995 Honda Civic DX/LX
o 1993-1995 Honda Civic del Sol S
o 1992-1995 Honda Civic LSi Coupe (European Market)
+ Displacement : 1,493 cc (91.1 cu in)
+ Bore and Stroke : 75 mm × 84.5 mm (3.0 in × 3.3 in)
+ Compression : 9.2:1
+ Power : 102 hp (76.1 kW, 103 ps) @ 5900 rpm
+ Torque : 98 ft·lbf (13.5 kg/m, 133 Nm) @ 5000 rpm
+ Valvetrain : SOHC (4 valves per cylinder)
+ Cam Gear: 38 Tooth
+ Piston Code : PM3
+ Fuel Control : OBD-1 MPFI
+ ECU Code: P06

 

All 92 Civics are hard wired for Vtec and all 93 Del Sols are hard wired for Vtec also.

 

Yessir you are correct.