Pabs626

my friend has a 2000 civic si and has a b16a in it but vtec does not engage and car is running like **** hes running a stock harness with 2000 civic si ecu whats needed to make vtec engage and to get it running good

Offspring EK

low oil?

Pabs626

no oil is good

Padawan

We're going to need a bit more information about the background of the car. There's not much to go on here.

Adam_b16a

What CEL's are you throwing? Or have you checked?

94EG8

^

Also, JDM B16A? You will need to either preform the CKF fix, or use a USDM oil pump.

Pabs626

yea the problem is that its a old jdm motor no crank sensor and stuff like that so no vtec i want to know what ecu and what harness to use to make vtec work

Farmer89511

i believe the OBD 2 ECU needs more info to engage the Vtec what is the B16A or A2?

arrocha87

i believe the b16a is out of a 92-95 jdm siR

94EG8

See the following link for how to fix the CKF fix ---> http://technet.ff-squad.com/ckftrick.htm

If its a JDM OBD2 B16A it will also not have a vtec pressure switch and the USDM will look for it and vtec will not engage. Either use a USDM vtec solenoid, or connect the signal wire going to the non existant pressure switch and tap it into the wire going to the vtec solenoid.

slo_hatch

why not either buy a b16a2 or convert it back to obd-1 so it doesnt look for the knock sensor and all that.

EX-T

get a p28, that's work perfect with the jdm b16a

94EG8

No, that would be a P30.

Farmer89511

no you can use a P28 ECU that is chipped to run a B16...BUt he will need to used OBD2 to OBD1 wiring harness to run the P28...

Arthas

Do you know how expensive A2's are? lol..

94EG8

Yes, I'm aware of that, but EX-T simply said a P28, implying a stock unchipped P28, which is certainly less than an optimal solution. In any case its not that hard to make a JDM B16A work with a USDM P2T ECU. You simply need to preform the CKF fix and tap the vtec pressure signal wire into the vtec solenoid signal wire.