37820-PM7-9031 / 641-110913 JDM 89-91 Civic CRX DOHC ZC ECMThis unit is untested, I got it several years ago with a ZC engine I was going to put in a 91 Civic. It was supposed to work then and has been stored indoors ever since. Unit is sold AS-IS. I do not offer an official return policy but i I value my 100% positive feedback, if there is any issue with the sale (not as described, shipping delay, whatever), PLEASE contact me right away and I'll do everything I can to make it right.I accept PayPal only and require payment within 48 hours of auction close. I reserve up to 2 days handling time, but most items ship on the next business day.