my beater not running
my beater not running
ok, well my beater is my auto matic 1990 sohc. fastback with 171000 on its been running good lately, but yester day i was working filled up my tank and les then ten mins later it starts missfiring , backfiring shaking, sputtering dying on me... revd it up real high it went away for 10miles then kicked back in! now i ve changed the plugs dist roto button. took out all injectors cleaned each in alcohol.... well before that all plugs looked burn except that #3 had crap on it and was soaking wet with fuel1!! well after the injector cleaning its dry but the motor still isnt running.. itll turn over shake fire intermittely n die out .... could it be bad gas.. i used 87 from some rinky dink station !! could it been the bottom of the tank and varnish? i put in to bottles of iso heet to cure water problem but no differance ... tomorow the filter is changing and the fuel injector cleaner goes in then onto the pump!! what else could it be.. headgasket... but not smoking at all no coolant in oil could have oil in coolant but it was pretty rusty to start with so rust colored coolant ???
Had the same intermittent problem on my KA motor before I rebuilt it. Sounds like a rich condition caused by a faulty O2 sensor. The black on the plugs is excess carbon which is caused by too rich a mixture. When the onboard ECM stops getting a reference signal from the oxygen sensor, it goes to a full-rich air/fuel mixture. Bet you have black smoke from you exhaust when it is running like crap. Go get a good aftermarket sensor (Bosch, should be about $20) and I'll bet you will be ready to go.
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yellow_jacket
- Posts: 1355
- Joined: Mon Jan 13, 2003 4:43 pm
- Car: 95 240sx
Try shooting some carb cleaner into the throttle body. Did it start and run for a second or two? If so you have some sort of fuel condition. If not your spark is probably weak or non existant.
From your first post it sounds like you either got bad gas or have no spark(water or bad gas can give you wet looking plugs)
From your first post it sounds like you either got bad gas or have no spark(water or bad gas can give you wet looking plugs)
You're not going to believe this--but if you have Bosch plugs that may be the problem! I just had a similar thing happen to me and I took it to my mech and he said the Bosch plugs I had in there were the cause of my problems! He told me to use NGK. As soon as he swapped out my plugs, the car started running fine, he did some minor tweaking and it's purring again!!