rottenA61 Posted July 15, 2018 Share Posted July 15, 2018 Hey all, I have an 81 ms112 hardtop jdm spec 5m-e that up until recently was running sweet, started running rough when cold but still mint when warm and now will just simply not start at all. Compression is ok, has brand new spark plugs, have changed tps, afm, dizzy, coil, igniter, relays, and checked the earth straps and it kind of wants to fire and is getting plenty of fuel but spark doesn't seem to be strong enough. About at the point where I'm going to set the damn thing on fire. Any ideas on things to try? Cheers ☺ Quote Link to comment Share on other sites More sharing options...
187inc Posted July 15, 2018 Share Posted July 15, 2018 What's the coil like that you swapped out? Could have 2 bad ones.. Quote Link to comment Share on other sites More sharing options...
rottenA61 Posted July 15, 2018 Author Share Posted July 15, 2018 Yeah I thought that but I have 5 coils lying round (I may have an M series hoarding problem) and no change for any of them Quote Link to comment Share on other sites More sharing options...
Ranter Posted July 15, 2018 Share Posted July 15, 2018 Rough when cold can be head gasket but that wont stop it starting, can't help on the parts replacement mission but how long you been cranking on those plugs? They'll foul up in no time and it'll never start, first I'd try cleaning and drying them. Quote Link to comment Share on other sites More sharing options...
rottenA61 Posted July 16, 2018 Author Share Posted July 16, 2018 Yeah that's why I checked the compression but it's definitely good enough to run, and i replaced the plugs after it stopped going and it made no difference, have also cleaned them since then Quote Link to comment Share on other sites More sharing options...
HighLUX Posted July 16, 2018 Share Posted July 16, 2018 Cold start injector time switch/coolant sensor thing fuuu'd out so its just dumping in fuel from the cold start injector all the time Quote Link to comment Share on other sites More sharing options...
rottenA61 Posted July 17, 2018 Author Share Posted July 17, 2018 You, good sir, are my golden champion of the day. Cleaned plugs and unplugged cold start injector and now it's running! 4 Quote Link to comment Share on other sites More sharing options...
HighLUX Posted July 17, 2018 Share Posted July 17, 2018 Good to hear! Coolant sensors can be had new from Toyata for a decent price if you want to get it working again Quote Link to comment Share on other sites More sharing options...
rottenA61 Posted July 18, 2018 Author Share Posted July 18, 2018 Thanks, was considering pilfering one off one of my 5mge engines otherwise haha will see what Toyota want to sting me for one first Quote Link to comment Share on other sites More sharing options...
HighLUX Posted July 18, 2018 Share Posted July 18, 2018 Yeah it should be the same/any 80s cold start injector toyota one will work for the low price of $2 from PAP. It should have a part # hiding somewhere on it too. A pm to @CorollaGT might help if you want new from toyota 1 Quote Link to comment Share on other sites More sharing options...
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