Purchased a prelude, didn't expect it to be this bad. Stock prelude was: 93 Prelude Si model (2.3 DOHC engine). Engine and manual trans were swapped from 99 acura 2.3 CL (2.3 Vtec SOHC engine). Now the problems with this 2.3L Vtec SOHC engine I have: ECU - 93 prelude "S" model NON-VTEC 2.2L SOHC computer destributor - 93 prelude "S" model Trouble code #9 Engine cut off at 5400rpm Can I run a Vtec engine with a non-vtec distributor? Can I use something else than engine computer to enable the Vtech? Why does my engine cuts off at 5400? Can it be attributed to the the trouble code #9? Is trouble code #9 is most likely top sensor on by distributor gone bad (as I can see a crack on the top sensor)? If I must have a computer for my Vtec, can I buy some kind of wiring harness adapter to allow my OBD I harness to connect to OBD II computer, so that I could use stock 2.3cl computer? Will the computer work from up to 96 honda accord 2.2L Vtec SOHC, or I will need to rewire the whole thing? I have posted some questions previously on Preludepower.com - Powered by vBulletin and they helped me identify which computer I use. Thanks to every one who will respond!