I haven't driven my '88 CRX much (mostly due to the weather) after swapping out the auto trans for a manual, but I've started noticing that the idle is out of whack now. It was acting like it wasn't warming up (Idle would stay high) until yesterday, then suddenly the idle started surging between about 900-1500. I haven't burned a whole tank of gas since the swap, but it's looking as if my MPG has probably dropped quite a bit as well. I can occasionally get the idle to drop by blipping the throttle (like knocking a carbureted engine off the choke), which doesn't make any sense to me. To date, I have cleaned the IACV, checked for air leaks, and checked to be sure the throttle linkage/cable isn't binding. I'm not sure where to go next....I don't know much about the stock DPFI, so if anybody can give me some tips to help me find the problem I'd really appreciate the help. The car is a bone stock '88 CRX DX that started life as an auto and I converted to manual. (Including swapping the ECU). It summer the last time I drove it as an auto, so this problem might have been pre-existing, but I never noticed it till immediately after the swap. Thanks all.