pliskin679

hey guys, i just dropped a jdm d15b into my 92 CX and it went near flawless, the engine is running absolutly beautiful from JDM depot in NJ... (thumbs up to them). i had my origional ecu hooked up for a week until i bought a p28 and oh boy of a difference it made. Now all 92 civics were pre wired for vtec, but i cant find the ****ing pressure switch wire... the other wire is there but i cant find it??? any ideas??? and also with the p28 ecu, i get a heart pulse where it idles for .5 seconds and drops lower, then high and low (heartbeat) why is this? other then not having vtec it runs flawlessly. im stoked to get vtec hooked up though.

pliskin679

bump

b16_sol_707

The pulsing sound is either the FITV or IAC. https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/how-fix-your-idleing-woes-fitv-iacv-2153910/

b16_sol_707

it should be pre wired to the shock tower for VTEC, all you would need to do is plug in a vtec harness and it should work. The other way to find it would be to look for a wire going into the shock tower plug that has no wire coming out into the engine harness.

CivicSpoon

http://www.ff-squad.com/tech/wiring/...ktowerplug.jpg