My GS300 engine misfire when warm
11-27-10, 09:54 AM
#16
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I personally would start with the basics first, And $30-$60 isnt expensive at all. And if that fixes your problem your good! If not all you did was a little "Preventive Maintenance"!!
By the way guys heres a quick link on the Sea-Foam how to. Its a pretty simple process if you follow the directions and have a little bit of patience!
I did my 98' GS300 in about 15 minutes or so, And she was smoking like a chimney!!
http://www.youtube.com/watch?v=vRAV5ln5cUc
11-27-10, 12:11 PM
#17
I would agree on the injector/fuel cleaner. I personally Sea-Foam all of my vehicles when I first get them!
Follow the basics = Oil change. New PCV Valve. Clean MAF. Spark plug change ONLY USE = (Denso Iridium/Platinum, Or NGK Iridium/Platinum).
The mis-fire with no CEL can usually point to a fuel problem, And again not always. I had a lean code for a while, And we replaced the MAF and it fixed that problem. But the mis-fire kept spitting out P0300 And P0303. It ended up being a bad Spark Plug Wire!!
My 98' Has 130k. So I would grab a set of wires and you should be on your way!!
Follow the basics = Oil change. New PCV Valve. Clean MAF. Spark plug change ONLY USE = (Denso Iridium/Platinum, Or NGK Iridium/Platinum).
The mis-fire with no CEL can usually point to a fuel problem, And again not always. I had a lean code for a while, And we replaced the MAF and it fixed that problem. But the mis-fire kept spitting out P0300 And P0303. It ended up being a bad Spark Plug Wire!!
My 98' Has 130k. So I would grab a set of wires and you should be on your way!!
04-11-16, 12:09 PM
#20
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Join Date: Apr 2016
Location: NY
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I would agree on the injector/fuel cleaner. I personally Sea-Foam all of my vehicles when I first get them!
Follow the basics = Oil change. New PCV Valve. Clean MAF. Spark plug change ONLY USE = (Denso Iridium/Platinum, Or NGK Iridium/Platinum).
The mis-fire with no CEL can usually point to a fuel problem, And again not always. I had a lean code for a while, And we replaced the MAF and it fixed that problem. But the mis-fire kept spitting out P0300 And P0303. It ended up being a bad Spark Plug Wire!!
My 98' Has 130k. So I would grab a set of wires and you should be on your way!!
Follow the basics = Oil change. New PCV Valve. Clean MAF. Spark plug change ONLY USE = (Denso Iridium/Platinum, Or NGK Iridium/Platinum).
The mis-fire with no CEL can usually point to a fuel problem, And again not always. I had a lean code for a while, And we replaced the MAF and it fixed that problem. But the mis-fire kept spitting out P0300 And P0303. It ended up being a bad Spark Plug Wire!!
My 98' Has 130k. So I would grab a set of wires and you should be on your way!!
How would you solidify if it is a fuel problem? Should you disconnect a wire and see if it shoots out fuel? My maf is clean, my car slightly misfires and the rpm drops to 0 and car stays on. .. all spark plugs are new and a new 02 sensor, I use sea foam every so often. My car was turning over then dropping right away now it stays on for a while. Sorry to single you out, can you think of anything to be the problem
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