OBD1 B18c into OBD2a EK3 wiring questions

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02-14-2010, 05:36 AM

stjohnsafc

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OBD1 B18c into OBD2a EK3 wiring questions

Hi guys, in need of some advice with reguards to wiring

The engine i have is a 1994 OBD1 JDM B18c (SI Teg), which i am trying to put in my 1996 OBD2a D15z6 EK3

I already know that in order to get the engine wired in i need to change the connectors over from the Injectors, Alternator and Dizzy on my OBD1 loom to the OBD2a loom

My question is in relation to the Vtec Pressure Switch (as mentioned by Katman here https://honda-tech.com/forums/hybrid-engine-swaps-18/%2A-%2A-obd1-b-series-engine-into-obd2a-obd2b-civic-integra-%2A-%2A-1972711/)

Quote:

Originally Posted by Katman

(option 2)
Convert to OBD1 ECU via OBD2a>OBD1 jumper harness and simply use an OBD1 ecu (JDM or US) to power the engine, such as a reprogrammed P28.

PROS: OBD1 ecu's rule in general as they are easily reprogrammable and do not look for additional sensors (2nd 02 & CKF for instance). OBD1 ecu's are very forgiving and not as sensitive as US OBD2 ecu's are.

CONS: cannot pass smog, VTPS required to be wired in.

Will i need to do this on the JDM B18c?

Cheers

Lee