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LHD S13 »
https://forums.nicoclub.com/lhd-s13-u267815.html
Wed Apr 26, 2017 9:12 pm
I have read a lot of post before anyone ask.
Picked up a 93 vert with 135k ran decent but had horrible idle but no hesitation at first, so I changed plugs and wires. 80 miles and 2 months later it lost the will to start unless you feed it gas, started to miss terribly at idle and lots of hesitation below 2k RPM
I pulled all plugs one at a time and cylinder 3 made no change in behavior. Pulled injector wires one at a time and again cylinder 3 had no change in behavior. Tested the resistance of each injector and all 4 read 11.7. Checked all plug wires for spark all seemed to spark. Previous owner has installed a new injector harness and replaced injector 3 so the car has been running rich on cylinder 3 for a while. The top of piston 3 is black plug has lots of carbon build and seemed like all plugs smell of gasoline, but injectors test fine? going to check O-rings in the morning.
I did a compression test the day I got the car with a buddy's tester and results are without warming the engine
125
125
140
120
Any additional input would be great, in the meantime ill keep testing and conducting researching