salsacrotch Posted August 16, 2009 Share Posted August 16, 2009 I recently purchased a 98 sc400 and it suddenly started running like crap I mean from 290hp vroom vroom to 10 hp put put pooooo and Iam getting 301 303 305 and307 misfire codes fallowing with a p0172 code. I tried a new maf switched the o2's checked any vacuum leaks and still to no avail .....any suggestions? Quote Link to comment Share on other sites More sharing options...
LexSC400328 Posted August 19, 2009 Share Posted August 19, 2009 all tune up essentials checked? try running a bottle of Techron Fuel cleaner through the system. stuff cured my car. 93' SC400 from put put poo to VROOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOM (big peel out) Quote Link to comment Share on other sites More sharing options...
jzz30 Posted August 21, 2009 Share Posted August 21, 2009 sounds like a bad coil? or maybe a temp sensor Quote Link to comment Share on other sites More sharing options...
MarcosMarcusM Posted August 24, 2009 Share Posted August 24, 2009 I'm not saying that Techron will solve the issue, but I do recommend it. It's great! Quote Link to comment Share on other sites More sharing options...
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