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Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series. |
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#1 |
![]() Alright I will first start with saying sorry for spamming the community with my bucket 240sx.
This is my Magnum Opus Skip to the bottom if you don't want to read my story and jump right to the issue. So will start with saying how this started with my driving ![]() ![]() I bought a reman engine all new I installed it started it up and had a bad idle started replacing stuff and this is where im at. cylinder 2 is getting weak spark im pretty sure. I will now go through the list of stuff i've replace and their effect. Spark plugs - no change Wires - no change FPR - made a big difference cut the shaking in half Cap - no change rotor- no change distributor - no change Tps - leveled out idle, however it was still rough maf - made the shaking better but nothing extreme air filter - no change injectors - are fairly new, but I found some altima injectors and flipped them around no change. I know im getting fuel to the second cylinder. Ignitor coil - no change temp sensors - fairly new if I unplug them I notice a change in idle fuel pump - fairly new it's a 255 LHR getting good pressure battery - new tested good terminals - replaced yesterday o2 sensor - is new Grounds - I cleaned and resurfaced the two grounds behind the engine. Replaced the ground connector coming off the harness near the injectors. fuel filters- was used for around a month. injector o-rings- no difference. I think that's about it right now there is bad spark to cylinder two that only affects the engine till around 3k then it just feels a little under powered. I am replacing the ECU, fuel rail, and maybe the maf again tomorrow. This is my last plea for help. Thank you Zilvia now fix my ride. ![]() |
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electrical issue, help 240sx, ka24de problem, misfire, shakes |
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