yea 1/3 in gas, 1/3 in oil, then the last 1/3 in the vaccum line slowly while the car is running it will sound like its going to die when it does let off on the pouring then continue you might need someone to giv it a little gas so it doesnt keep cutting off when ur pouring. then turn it off for 15min. then start her up and hold it about 2500rpm until the smoke is gone directions are on the bottle. u will c the smoke it will clean out all the junk in ur exhaust pipe it will look like oil dripping but its not just gunk then change your oil after 100 miles u will tell a difference

Another way to look for exhaust leaks...
Engine idling - have someone hold a wadded-up rag against the tailpipe. Don't seal it off enough to stall the engine, just raise the back-pressure. That'll make any leaks get louder & easier to find.

how can i check the computer of my car (90 accord) with the paper clip to see if its showing the code of the o2 sensor were is my ecu located and how do i place the paper clip im goin to try that seafoam thing this weekend and the rag trick to see if it gets loader and i guess i gotta clean the IACV and the FITV because its starting to hunt for idle again

there is a blue two-pin connector that is behind the passenger kick panel. Short the connector with a thin paperclip. Turn the key to the II position. Count the LED flashes on the ECU.

The ECU is on the passenger side towards the firewall. I think you just have to pull back the carpet. See Misc. Details on http://techautorepairs.com/ecu.html

The 90 accords don't flash the code via the CEL like the site shows.

well i tried to do it but it just lit up the check engine light no flashes in the dash nore the ecu and i think i found out y is idleling rough for but i wanna ask you guys before

i found a very small leak in one of the hoses connecting to the FITV were the radiator fluid is supposed to be flowing threw the thing is its kinda of yellow gunky stuff kind of hard to explain is it supposed to be that cooler and gunky i wiped it off yesterday 9/27/09 and today there was alittle bit on it its kind of hard to see because its on the bottom of the hose i just wiped with my finger and there it was any ideas thanks again

do you uys think that the leak in my hose connecting to the FITV can cause it to idle rough when coming to a stop

FITV can cause the idle to surge up & down, if that's what you mean by "rough". The normal warning is that air in the cooling system can confuse the idle system. But if there's crud in the FITV, or leaking, or stuff like that can probably cause it to act strange too.

Take off the hose, take off the FITV, clean it up. Remove thermostat & rinse out the cooling system real good.

Maybe you need to go over the idle control system & set base idle & all that stuff?

well its still cutting off on me if i press the brakes hard when im passed the half way mark if i let go of the brake on time itll idle rough (below 500rpms) and go back to its regular idle position now im guessing its not the iacv or the fitv at all any suggeestions and i changed the spark plugs, spark plug wire, rotor, ignition coil, fuel filter valve cover gasket basically every tune up i can and its still doing it plllllzzzzz help its getting annyoing

anyone plz