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robmontoya11 · 01-19-2017, 10:30 PM

Someone please help I have been going at this for weeks!!! I have a misfire in which it ideales rough and makes muffled popping noises when idling as if it's not getting spark or has fuel cuts. It also loses a good amount of top end power and sometimes makes a nasty noise that sounds like it's leaning out hard. I have replaced fuel filter, have a Walbro 255 fuel pump, MAF, distributor with cap and rotor, spark plugs, injectors, air filter, added engine ground, replaced oil, and adjusted idle. I went to get an OBD scan and I got 3 codes: EGR(removed), speed sensor, and some air sensor for this car but when I looked that code up online, nothing popped up. I am led to believe the only things left that may fix the issue are TPS, Bad wiring harness or ECU. Someone please provide further input I would greatly appreciate it.

01-19-2017, 10:30 PM	#1
robmontoya11 Join Date: Oct 2015 Location: Miami Age: 28 Posts: 14 Trader Rating: (0)	S14 misfire Someone please help I have been going at this for weeks!!! I have a misfire in which it ideales rough and makes muffled popping noises when idling as if it's not getting spark or has fuel cuts. It also loses a good amount of top end power and sometimes makes a nasty noise that sounds like it's leaning out hard. I have replaced fuel filter, have a Walbro 255 fuel pump, MAF, distributor with cap and rotor, spark plugs, injectors, air filter, added engine ground, replaced oil, and adjusted idle. I went to get an OBD scan and I got 3 codes: EGR(removed), speed sensor, and some air sensor for this car but when I looked that code up online, nothing popped up. I am led to believe the only things left that may fix the issue are TPS, Bad wiring harness or ECU. Someone please provide further input I would greatly appreciate it.