Sorensin Posted October 23, 2011 Share Posted October 23, 2011 Hey so my honda city I picked u from a lil old lady as a work comuter a couple months ago had a slight miss issue when I purchased it. I wasn't worried about it much used some petrol tank claner and carb clean just incase there was some crap somewhere there. The miss started getting worse under load so I figured it was a electric issue. The Spark plugs where new according a service reciept from 2000k ago. Have pulled the plugs out and are as new with no one showing anymore wear/use signs of anything more than any other one. Have replaced the leads with new ones and that made no differnce at all. Tried replacing the coil with the coil listed in repco's system (cic31). This made the car barely run at all- swapped back to the original coil and it went back to running just with its miss which has been rapidly getting worse now. Went back to repco returned coild and tried the only other coil it looked like it could be, car wouldn't even start with second coil. At this point car has got so bad I can't drive it even with original coil in it. Went and got a new ignition module from repco, this made no differnce car still runs terribly and is near undrivable. Any idea would be be awesome as I need to get car running ASAP Will be taken to mechanics on tuesday if i can't sort something before then. Thanks Quote Link to comment Share on other sites More sharing options...
Sorensin Posted October 23, 2011 Author Share Posted October 23, 2011 PS the dizzy cap and rotor appear to be in good cond, car has only just done over 100k from new. This is a 1986 honda city- carb Quote Link to comment Share on other sites More sharing options...
Sorensin Posted October 23, 2011 Author Share Posted October 23, 2011 PSS the missing got worse as the car warmed up - seemed to run better when cold - but even when cold now runs terribly. Quote Link to comment Share on other sites More sharing options...
Valiant Posted October 23, 2011 Share Posted October 23, 2011 Vacuum leak? Tight tappets? They might be two things to look into. Are you sure the plugs aren't tracking or some other part of the ignition tracking to ground? Quote Link to comment Share on other sites More sharing options...
CXGPWR Posted October 23, 2011 Share Posted October 23, 2011 Id be replacing the distributor cap and rotor, had a city once, every so often out of the blue would fail due to cap and rotor even though they both looked to be all good. Replace them, sounds like the same problem ive come accross Quote Link to comment Share on other sites More sharing options...
kyteler Posted October 23, 2011 Share Posted October 23, 2011 I had a City once, it was awesome. I replaced the module on the side of the dizzy from another 80's Honda via Pick-a-Part, it was/is a common issue as all but one of the half dozen or more Honda's at Pick-a-Part had already had their modules stolen. It's a little four pin (I think) metal doofer on the side of the dizzy. Mine didn't work at all until I replaced it but I imagine they could suffer from varying levels of aids. Looked like this bitch; Quote Link to comment Share on other sites More sharing options...
Sorensin Posted October 24, 2011 Author Share Posted October 24, 2011 I had a City once, it was awesome.I replaced the module on the side of the dizzy from another 80's Honda via Pick-a-Part, it was/is a common issue as all but one of the half dozen or more Honda's at Pick-a-Part had already had their modules stolen. It's a little four pin (I think) metal doofer on the side of the dizzy. Replaced this with a brand new one. Id be replacing the distributor cap and rotor, had a city once, every so often out of the blue would fail due to cap and rotor even though they both looked to be all good. Replace them, sounds like the same problem ive come accross Yera this is about the only thing left in the igntion set up left to replace, rechecked and they do look mint but might give that a try anyway. Vacuum leak? Tight tappets?They might be two things to look into. Are you sure the plugs aren't tracking or some other part of the ignition tracking to ground? Vacum seems to be fine, how do i check for tight tappets? I've done tappets on my escort, tappet cover off and just measure gaps? how to I tell if something is tracking? this could be the most likely thing as I dont think its tappets as its now at the point the engine will only start/barely run when cold and after its turned off you cant restart it warm. Also read on the internet when searching for similar symptoms check compression - fark I brought this as a cheap runa around - not really working out :/ Quote Link to comment Share on other sites More sharing options...
fuel Posted October 24, 2011 Share Posted October 24, 2011 Unfortunately this is the gamble you take when you buy a (cheap) 25 year old used car. These things happen. I would be checking compression across the board before looking further into the ignition system. Hopefully it is just a rotor/cap needing replacement. Quote Link to comment Share on other sites More sharing options...
sholdowa Posted October 24, 2011 Share Posted October 24, 2011 if it's only one cylinder, then it could be your plug leads. if it'll idle, try pulling them off one by one and if it makes no difference with one of them, swap the leads with another cylinder and see if the problem moves with it or not. Quote Link to comment Share on other sites More sharing options...
fuel Posted October 24, 2011 Share Posted October 24, 2011 I would say given now that the car wont run at all, the misfire is on more than one cylinder. Quote Link to comment Share on other sites More sharing options...
sholdowa Posted October 24, 2011 Share Posted October 24, 2011 I would say given now that the car wont run at all, the misfire is on more than one cylinder. try the ht lead to the coil then... Quote Link to comment Share on other sites More sharing options...
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