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View Full Version : s13 sr20det weird problem


No 240.. No id
08-14-2012, 12:58 PM
Hello everyone.
My s13 blacktop sr20 start sputtering around 4500 rmp only when the car warm up after 30 minutes of drive. It ideals great, and runs good, but when it drives for a long distance is start sputtering around 4500 rpm. But the it still ideals good. The strange problem is as soon as i cut it off and cut it back on, it drives great for another 30 minutes and it will pass 4500 rpm just like when its cold. It has a new spark plugs and taped like it suppose to be, New fuel filter and tank. No boost leak according to the guage.

I had a sputtering problem in my other s13 and it ended up to be the fuel pump, but idk whats up with this one. Any help will be really appreciated, am out of ideas.

rotation3x
08-25-2012, 09:31 PM
check your coolant temp sensor (the one that goes to ecu)
also couldnt hurt to do a compression check. may have a cracked ring on a piston
causing blow by