Help... Can't set ignition timing on 1993 civic dx 3dr. The initial problem of not being able to set idle was solved. Read my last post for newest problem witch is "can't set ignition timing". !!Solved!! The rpm reading on the timing gun was set to 2 cycle engines and so I wasn't getting the proper readings. My new problem is ignition timing. Read my last post at bottom. Hey master techs. I can't adjust my idle any more on my civic and need some ideas. My initial rpm reading is 320rpm and it needs to be 420rpm plus or minus 50rpm while the EACV "electronic air control valve" is disconnected. I can't adjust my idle any more on my civic and need some ideas. I changed my failed solenoid Electronic Idle Air Controle Valve "EACV" after it was humming. The only parts I have not replaced on the engine and power train systems are the Fast Idle Air Valve "FAV" witch is located on the bottom of the throttle body and havn't replaced the distributor body, egniter, coil, and spark plug wires. Everything besides the piston, piston rings, oil pump, bearings, and crankshaft are new. I need to adjust my timing only after I have the base idle set. I currently have the timing set by holding the throttle to the proper idle. And basicly I need more rpm and my adjustment screw is all the way unscrewed. "I did unplug the EACV and reset ECU after attempting to set idle and finding problem." The reson I have done so much to this car is when I bought it it had a Honda CX 8 valve head instead of the 16 valve head it was assembled with. I had a overheat somehow on the freeway and after pouring cold water on the engine "i was young and cool at the time hehe" I heared a crack sound near the water pump and water was getting into the oil after that. Five years later I started working on my car and found it had a headgasket failure and the block was good and normal. I reinstalled the head but didn't machine the surface and after one over heat climbing a mountain it failed another head gasket. I purchased a 16 valve head on ebay all machined and pretty and well I think it sounds like new but possible more damage in areas I am unfamiliar with like the idle air control valves that had gone through running on steem since the cooling system didn't hold pressure after a head gasket failure. Basicly alot of stuff could and did get damaged. I already replaced a contaminated o2 sensor and changed the oil twice. Below is my parts. 1993 Honda Civic DX 3Door D15B7 engine with PM3-6 head "valve timing is correct and set" New factory gaskets and seals Machined new head New factory distributor cap and rotor 40k mile ignition coil 115k mile old distributor 115k mile old rest of parts "orginal parts that came with vehicle." New factory air filter, oil filter, spark plugs, injectors, fuel filter, charcoal canister. New mobile one synthetic engine oil. New hoses and cooling system flush and kept toped off. Good fuel changed twice a month. Tommarow morning I will try and swap out my 115k mile old Fast Idle Air Valve with a 40k mile old one that I have as a spare. So any ideas master techs? Here is my proceedure I will do first thing in the morning. Just to let you guys know, this air control valve and the camshaft are my favorite devices.