June 14, 201411 yr Just gave the guy money and grabbed the title for the moment. Took it for a short test drive. idles crappy like hitting on only one cyl. Give it a bit of gas and after a few seconds it jumps to about 3 grand. Seems to like anything above 2k but goes back to the one cyl hit below that. Want to just drive this home. Any suggestions of what to check to get it running a little better? Need to drive about 65 miles to get it homw. Thanks Hush
June 14, 201411 yr IAC air tube under the intake might be loose (guessing a 93 has something like that?) crank/cam timing could be slipped dirty/gummed-up throttle body
June 14, 201411 yr dirty, gummy, IAC /throttle body Bad plugs Bad wires Possible timing is off a tooth or two. there are a multitude of things that can cause bad idle - none are overly difficult, or expensive, to fix - just a little time consuming. Would start with a complete "tuneup" - Basic NGK plugs, NGK wires, air & fuel filters and see where that gets you.
June 15, 201411 yr IAC air tube under the intake might be loose (guessing a 93 has something like that?) crank/cam timing could be slipped dirty/gummed-up throttle body +1, dislogged it once while working, thought engine was toast.... rather fat rubber hose should attach to a stub in the manifold casting.
June 17, 201411 yr Author Gonna take an extra Iac and some hose that I have with me. And some sealer and brake cleaner. Will grab some plugs and wires in town. Thanks Hush
June 17, 201411 yr i'd take an OBD code reader with me. i have a cheap ebay special one that i don't mind throwing around, letting people borrow, taking on trips, keeping in my work bag to help people out.
June 17, 201411 yr 93 is still OBDI...code reader wouldnt do him much good... Gonna have to go old school to read any CEL codes on this one... http://legacycentral.org/library/literature/codes.htm
June 17, 201411 yr NGK plugs and wires first. cheap and easy and they can't hurt. until you do them you are just guessing . then re-assess.
June 18, 201411 yr Author Got it home fine. Runs better after it warms up. Will start with plugs and wires and work my way out from there. Thanks Hush
June 20, 201411 yr Author Son sprayed card cleaner at the base of the intake on the driver side and idle picked right up. So need to have jason send me a set of gaskets. Hush
June 21, 201411 yr When mine had these symptoms, it was an intake manifold gasket. Mine is also a '93 Legacy wagon. This happened at about 100K miles when the car was about 17 yrs old.
June 24, 201411 yr A little bit ago bought a 93 legacy wagon & it ran like SH!T when 1st started each day. Only reasons we went ahead and got it was the price, pretty cheap for the condition it was in (besides driving performance) & it would clear up and run pretty good once warmed up. After multiple threads & posts I tracked down a few issues that caused its lacking performance. 1ST was timing, it was off 2-3 teeth. I couldnt believe that because it ran so good when it warmed up. 2ND previous owner had those Bosch 4 tip platinum plugs in it, immediately in went NGK's, it helped. 3RD Coolant temp sensor was shot, idled at 2000-3000+ rpm's for a while at first start of the day. Not any more. BTW the EASIEST way to tell if the coolant temp sensor is crap is to just turn key to "ON" pos. and if your fans start or stay running NON-STOP its shot. Granted fans will run if the car has been drivin recently & is stil hot/warm but if they dont stop after 30min then its toast. 4TH cleaned throttle body/IAC valve/PVC/MAF. There's a few things to look into if its running shitty & keeping a high idle. Edited June 24, 201411 yr by 88coupe
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